Products

Refine

Country

Business Type

Certificate

Display

Dayang Chem (Hangzhou) Co.,Ltd.

Dayangchem’s R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantiti

N,N,N',N'-Tetramethylethylenediamine suppliers in China

Cas:110-18-9

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance Colorless to light yellow clear liquid Clear colorless liquid Identification

Top purity N,N,N',N'-Tetramethylethylenediamine with high quality cas:110-18-9

Cas:110-18-9

Min.Order:1 Kilogram

FOB Price: $6.0 / 20.0

Type:Manufacturers

inquiry

Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality 1,2-Di(dimethylamino)ethane(TMEDA) supplier in China

Cas:110-18-9

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Wuhan Fortuna Chemical Co.,Ltd

Unique advantages for TMEDA Cas 110-18-9 Guaranteed the purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Liquid Storage:Store at room Package:200kg/drum Application:Intermediates Transp

Good steady quality etramethylethylenediamine(TMEDA) Cas 110-18-9 with favorable price and good services

Cas:110-18-9

Min.Order:1 Kilogram

FOB Price: $30.0 / 100.0

Type:Trading Company

inquiry

Hefei TNJ chemical industry co.,ltd

1.Hefei TNJ Chemical Industry Co.Limited(ISO9001:2008),are strong in the field of Pharmaceuticals,food additives,plant extract and fine chemical for more than 10 years. 2.Full experience of large numbers container loading in main Chinese seap

N,N,N',N'-tetramethylethylenediamine

Cas:110-18-9

Min.Order:160 Kilogram

Negotiable

Type:Trading Company

inquiry

EAST CHEMSOURCES LIMITED

N,N,N',N'-Tetramethylethylenediamine Product Name: N,N,N',N'-Tetramethylethylenediamine Molecular Weight: 116.20 CAS NO: 110-18-9 EC NO: 203-744

N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:1 Kilogram

FOB Price: $2.0 / 3.0

Type:Manufacturers

inquiry

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply 1,2-Di(dimethylamino)ethane(TMEDA)

Cas:110-18-9

Min.Order:1

Negotiable

Type:Other

inquiry

Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new ap

N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:1 Kilogram

FOB Price: $6.0

Type:Manufacturers

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

1,2-Bis-(dimethylamino)-ethane

Cas:110-18-9

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

N,N,N',N'-Tetramethylethylenediamine Basic information Product Name: N,N,N',N'-Tetramethylethylenediamine Synonyms: TETRAMETHYLETHYLENEDIAMINE;TEMED;TD;N,N,N'N'-T

110-18-9 N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Sinotech Import&Export Corporation

Product Name: N,N,N',N'-Tetramethylethylenediamine Molecular Formula: C6H16N2 Molecular Weight: 116.20 CAS RN: 110-18-9 Overseas Product Code: Dacbo TMEDA; Toyocat TE Properties: at normal temperature it is colorless transparent volat

N,N,N',N'-Tetramethylethylenediamine 110-18-9

Cas:110-18-9

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

inquiry

Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese

N,N,N',N'-Tetramethylethylenediamine 99%

Cas:110-18-9

Min.Order:1 Kilogram

FOB Price: $75.0 / 89.0

Type:Trading Company

inquiry

Lonwin Chemical Group Limited

N,N,N',N'-Tetramethylethylenediamine CAS:110-18-9 Specification index chemical purity appearance clear,colorless liquid. be soluble in water, alcohol and other organic impregnant, bio

Factory supply N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

N,N,N’,N’-Tetra-Methyl- Ethylene-Diamine

Cas:110-18-9

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc

Ethyl 5-nitro-1-benzofuran-2-carboxylate

Cas:110-18-9

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Massive Chemical Technology Co., Ltd.

Massive Chemical is certified with ISO9001 and ISO14001 manufacturer for this product. We will offer all documents as requirement for the materials which includes, Certificate of Analysis, Material Safety Data Sheet, and Method of Analysis and

N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:1 Gram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

High quality N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: N,N,N',N'-Tetramethylethylenediamine CAS No.: 110-18-9 Molecule Formula:C6H18N2 Molecule Weight:118.22 Purity: 99.0% Package: 180kg/drum Description:Colorless clear liquid Manufacture Standards:Enterprise Standar

Lower Price N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

N,N,N',N'-Tetramethylethylenediamine suppliers in China

Cas:110-18-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

We are leading fine chemicals supplier in China with ISO certificate, Our main business covers the fields below: 1.Noble Metal Catalysts (Pt.Pd...) 2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...) 3.OLED

N,N,N',N'-TetramethylethylenediamineCAS NO.: 110-18-9

Cas:110-18-9

Min.Order:1 Gram

FOB Price: $2.0

Type:Lab/Research institutions

inquiry

Hangzhou Ocean Chemical Co., Ltd.

★.Best quality according to requirement ★.Competitive price in China market ★.Mature Technical support ★.Professional logistic support ★.Shortest delivery time . Has a strong chemical professional quality and strong sense of respon

manufacturer 1,2-Bis(dimethylamino)ethane 110-18-9

Cas:110-18-9

Min.Order:1 Kilogram

FOB Price: $5.0 / 6.0

Type:Lab/Research institutions

inquiry

Hangzhou ZeErRui Chemical Co., Ltd.

hangzhou zeerrui chemical co., ltd. located in lingang industrial areas, our plant covers an area of 6000 square meters.zeerrui dedicated to the development, production and marketing of chemicals. we have earned ourselves a good reputation at home

N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:160 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Zhongqi chem Co.,Ltd.

Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Benefiting from the outstanding customer service an

N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Hubei Vanz Pharm Co.,Ltd

ISO/factory/goodqualityAppearance:off white Storage:Dry,cool place Package:drum Application:active pharmaceutical ingredients Transportation:by air/sea/express Port:shenzhen/shanghai

Ethyl 5-nitro-1-benzofuran-2-carboxylate

Cas:110-18-9

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:0

Negotiable

Type:Other

inquiry

JINHUA HUAYI CHEMICAL CO., LTD.

Jinhua huayi chemical co., ltd. is dedicated to the development, production and marketing of chemicals. On the basis of equality and mutual benefit, and under the principle of customer first, credit first, quality first, we are ready to join hands

N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:100 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

N,N,N',N'-TetraMethylethylenediaMine [for Electrophoresis]

Cas:110-18-9

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Shandong Xinhua Pharmaceutical Co.,Ltd

Appearance:Liquid Storage:tightly from light Package:180kg/drum Transportation:SEA Port:Qingdao

N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:1000 Kilogram

Negotiable

Type:Manufacturers

inquiry

Aecochem Corp.

Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

N,N,N',N'-Tetramethylethylenediamine

Cas:110-18-9

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Synthetic route

dimethyl amine
124-40-3

dimethyl amine

ethylene dibromide
106-93-4

ethylene dibromide

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
In tetrahydrofuran at 0 - 20℃; for 24h;100%
In chloroform at 20℃; for 24h;100%
dimethyl amine
124-40-3

dimethyl amine

acetylene
74-86-2

acetylene

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
With 1-ethyl-2-pyrrolidinone; sodium stannate(IV) trihydrate; alumina; calcium hydroxide at 45 - 80℃; for 6h; Reagent/catalyst; Temperature; Autoclave; Inert atmosphere;98.6%
formaldehyd
50-00-0

formaldehyd

ethylenediamine
107-15-3

ethylenediamine

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
With oxalic acid at 100 - 120℃; Eschweiler-Clarke methylation;96%
With hydrogen In methanol at 130℃; under 15001.5 Torr; for 4.5h; Autoclave;89%
With formic acid for 11h; Eschweiler-Clarke reaction; Reflux;80%
at 130 - 160℃;
With water at 130 - 160℃; im Autoklaven;
methanol
67-56-1

methanol

ethylenediamine
107-15-3

ethylenediamine

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
With hydrogen at 180℃; under 7500.75 Torr;91.6%
With hydrogen at 180℃; under 7500.75 Torr;91.6%
Li(1+)*((H3C)2NCH2)2*(C5H5)V(C3H5)2(1-)=(Li((H3C)2NCH2)2)((C5H5)V(C3H5)2)
89184-58-7

Li(1+)*((H3C)2NCH2)2*(C5H5)V(C3H5)2(1-)=(Li((H3C)2NCH2)2)((C5H5)V(C3H5)2)

carbon monoxide
201230-82-2

carbon monoxide

A

tetracarbonyl(η(5)-cyclopentadienyl)vanadium(I)

tetracarbonyl(η(5)-cyclopentadienyl)vanadium(I)

B

1,5-Hexadien
592-42-7

1,5-Hexadien

C

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

D

dilithium (η-cyclopentadienyl)tri(carbonyl)vanadate

dilithium (η-cyclopentadienyl)tri(carbonyl)vanadate

Conditions
ConditionsYield
In tetrahydrofuran reaction of CO with (LiTMEDA)(CpV(C3H5)2) in THF (Ar); formation of 1,5-hexadiene in the reaction soln., extn. of the residue with toluene, filtering off the solid and drying to give Li2(CpV(CO)3), evapn. of the filtrate to dryness and subliming the residue in a high vacuum at 80°C to give CpV(CO)4;A 91%
B 46%
C n/a
D n/a
[2,2]bipyridinyl
366-18-7

[2,2]bipyridinyl

[(N,N,N′,N′-tetramethylethylenediamine)Ni{CH2C(CH3)C(CH3)CH2COO}]

[(N,N,N′,N′-tetramethylethylenediamine)Ni{CH2C(CH3)C(CH3)CH2COO}]

A

(CH2C(CH3)C(CH3)CH2COO)Ni((C5H4N)2)

(CH2C(CH3)C(CH3)CH2COO)Ni((C5H4N)2)

B

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
In diethyl ether vigorously stirring a suspension of (3,4,5-η3)-3,4-dimethyl-3-pentenylato-N,N,N',N'-tetramethylethylenediaminenickel(II) in ether with 2,2'-bipyridine (CO2 or Ar); filtn. of the formed brown yellow ppt. after 24 h, shaking with THF fora few hours, filtn. and washing the residue with ether, drying in vacuo, elem. anal.;A 90%
B n/a
Roussin's red salt dianion

Roussin's red salt dianion

C6H16N2*2HNO(1-)*Fe(2+)

C6H16N2*2HNO(1-)*Fe(2+)

A

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

B

Fe4H2N8O8S2(2-)

Fe4H2N8O8S2(2-)

Conditions
ConditionsYield
In acetonitrile at 20℃; for 0.333333h; Inert atmosphere; Schlenk technique;A n/a
B 86%
Glycolaldehyde
141-46-8

Glycolaldehyde

dimethyl amine
124-40-3

dimethyl amine

A

2-(N,N-dimethylamino)ethanol
108-01-0

2-(N,N-dimethylamino)ethanol

B

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
With platinum on carbon; hydrogen In ethanol at 25℃; under 30003 Torr; for 12h; Solvent; Pressure; Reagent/catalyst; Autoclave;A 84%
B 8%
With 5%-palladium/activated carbon; hydrogen In ethanol at 25 - 80℃; under 30003 Torr; for 3h; Autoclave;A 35%
B 40%
[4-Et(C6H4)C(NSiMe3)2]Li(TMEDA)
1020084-83-6

[4-Et(C6H4)C(NSiMe3)2]Li(TMEDA)

zirconium(IV) chloride
10026-11-6

zirconium(IV) chloride

A

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

cis-[4-Et(C6H4)C(NSiMe3)2]2ZrCl2

cis-[4-Et(C6H4)C(NSiMe3)2]2ZrCl2

C

lithium chloride

lithium chloride

Conditions
ConditionsYield
In toluene at 0℃; for 3h; Cooling; Schlenk technique;A n/a
B 83%
C n/a
[2-OMe(C6H4)C(NSiMe3)2]Li(TMEDA)
1020084-88-1

[2-OMe(C6H4)C(NSiMe3)2]Li(TMEDA)

zirconium(IV) chloride
10026-11-6

zirconium(IV) chloride

A

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

cis-[2-OMe(C6H4)C(NSiMe3)2]2ZrCl2

cis-[2-OMe(C6H4)C(NSiMe3)2]2ZrCl2

C

lithium chloride

lithium chloride

Conditions
ConditionsYield
In toluene at 0℃; for 3h; Cooling; Schlenk technique;A n/a
B 82%
C n/a
[3-OMe(C6H4)C(NSiMe3)2]Li(TMEDA)

[3-OMe(C6H4)C(NSiMe3)2]Li(TMEDA)

zirconium(IV) chloride
10026-11-6

zirconium(IV) chloride

A

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

cis-[3-OMe(C6H4)C(NSiMe3)2]2ZrCl2

cis-[3-OMe(C6H4)C(NSiMe3)2]2ZrCl2

C

lithium chloride

lithium chloride

Conditions
ConditionsYield
In toluene at 0℃; for 3h; Cooling; Schlenk technique;A n/a
B 79%
C n/a
[4-OMe(C6H4)C(NSiMe3)2]Li(TMEDA)
1020084-86-9

[4-OMe(C6H4)C(NSiMe3)2]Li(TMEDA)

zirconium(IV) chloride
10026-11-6

zirconium(IV) chloride

A

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

cis-[4-OMe(C6H4)C(NSiMe3)2]2ZrCl2

cis-[4-OMe(C6H4)C(NSiMe3)2]2ZrCl2

C

lithium chloride

lithium chloride

Conditions
ConditionsYield
In toluene at 0℃; for 3h; Cooling; Schlenk technique;A n/a
B 78%
C n/a
[4-n-Bu(C6H4)C(NSiMe3)2]Li(TMEDA)
1020084-84-7

[4-n-Bu(C6H4)C(NSiMe3)2]Li(TMEDA)

zirconium(IV) chloride
10026-11-6

zirconium(IV) chloride

A

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

cis-[4-n-Bu(C6H4)C(NSiMe3)2]2ZrCl2

cis-[4-n-Bu(C6H4)C(NSiMe3)2]2ZrCl2

C

lithium chloride

lithium chloride

Conditions
ConditionsYield
In toluene at 0℃; for 3h; Cooling; Schlenk technique;A n/a
B 70%
C n/a
[(3-C4H3O)C(NSiMe3)2]Li(TMEDA)
1206534-47-5

[(3-C4H3O)C(NSiMe3)2]Li(TMEDA)

zirconium(IV) chloride
10026-11-6

zirconium(IV) chloride

A

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

B

cis-[(3-C4H3O)C(NSiMe3)2]2ZrCl2

cis-[(3-C4H3O)C(NSiMe3)2]2ZrCl2

C

lithium chloride

lithium chloride

Conditions
ConditionsYield
In toluene at 0℃; for 3h; Cooling; Schlenk technique;A n/a
B 68%
C n/a
(tetramethylethylenediamine)lithium trihydro(2,4,6-tri-tert-butylphenyl)borate
112506-19-1

(tetramethylethylenediamine)lithium trihydro(2,4,6-tri-tert-butylphenyl)borate

A

5,7-di-tert-butylhydroxy-3,3-dimethyl-1-boraindane
112506-16-8

5,7-di-tert-butylhydroxy-3,3-dimethyl-1-boraindane

B

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
With hydrogenchloride; water In diethyl ether; water byproducts: H2, LiCl; addn. of HCl to ether soln. of borate (0°C), stirring (room temp., 1 h), aq. HCl addn.; drying of etheral phase (Na2SO4), solvent removal (vacuum), repptn. (pentane); elem. anal.;A 53%
B n/a
(tetramethylethylenediamine)lithium trihydro(2,4,6-tri-tert-butylphenyl)borate
112506-19-1

(tetramethylethylenediamine)lithium trihydro(2,4,6-tri-tert-butylphenyl)borate

A

hydroxy(2,4,6-tri-tert-butylphenyl)borane
112506-15-7

hydroxy(2,4,6-tri-tert-butylphenyl)borane

B

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
With water In tert-butyl alcohol byproducts: H2, LiOH; stirring (0°C, 6h, room temp., 12 h); solvent removal (vacuum), addn. of ether/water, drying of ether phase (Na2SO4), solvent removal (vacuum), recrystn. (pentane); elem. anal.;A 36%
B n/a
(2-hydroxyethyl)(methyl)amine
109-83-1

(2-hydroxyethyl)(methyl)amine

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
With methanol; nickel at 175 - 200℃; under 40452.9 Torr; Hydrogenation;
formaldehyd
50-00-0

formaldehyd

ethylenediammonium sulfate
22029-36-3

ethylenediammonium sulfate

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
at 130 - 140℃; Destillation des Reaktionsprodukts mit Kalilauge;
sodium methylate
124-41-4

sodium methylate

4,5-epoxy-3,6-dimethoxy-17,17-dimethyl-morphina-6,8-dienium; iodide
19826-49-4

4,5-epoxy-3,6-dimethoxy-17,17-dimethyl-morphina-6,8-dienium; iodide

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

4,5-epoxy-6-hydroxy-3-methoxy-17,17-dimethyl-1-sulfo-morphinanium betaine

4,5-epoxy-6-hydroxy-3-methoxy-17,17-dimethyl-1-sulfo-morphinanium betaine

furan-2,3,5(4H)-trione pyridine (1:1)

furan-2,3,5(4H)-trione pyridine (1:1)

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
at 140℃; unter Druck;
dimethyl amine
124-40-3

dimethyl amine

2-(dimethylamino)ethyl chloride
107-99-3

2-(dimethylamino)ethyl chloride

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
With xylene
formaldehyd
50-00-0

formaldehyd

formic acid
64-18-6

formic acid

ethylenediamine
107-15-3

ethylenediamine

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

2-(dimethylamino)ethyl chloride
107-99-3

2-(dimethylamino)ethyl chloride

A

2-(N,N-dimethylamino)ethanol
108-01-0

2-(N,N-dimethylamino)ethanol

B

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
With alkalies
ethene
74-85-1

ethene

dimethyl amine
124-40-3

dimethyl amine

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
Multistep reaction;
aminoethylpiperazine
140-31-8

aminoethylpiperazine

formaldehyd
50-00-0

formaldehyd

formic acid
64-18-6

formic acid

1,2-dichloro-ethane
107-06-2

1,2-dichloro-ethane

A

N,N'-dimethylpiperazine
106-58-1

N,N'-dimethylpiperazine

B

1,4-diaza-bicyclo[2.2.2]octane
280-57-9

1,4-diaza-bicyclo[2.2.2]octane

C

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

D

1-<2-(diethylamino)ethyl>-4-methylpiperazine

1-<2-(diethylamino)ethyl>-4-methylpiperazine

E

N,N'-dimethyl-N,N'-bis<2-(4-methyl-1-piperazinyl)ethyl>ethylenediamine

N,N'-dimethyl-N,N'-bis<2-(4-methyl-1-piperazinyl)ethyl>ethylenediamine

Conditions
ConditionsYield
Mechanism;
aminoethylpiperazine
140-31-8

aminoethylpiperazine

formaldehyd
50-00-0

formaldehyd

formic acid
64-18-6

formic acid

1,2-dichloro-ethane
107-06-2

1,2-dichloro-ethane

A

1,4-diaza-bicyclo[2.2.2]octane
280-57-9

1,4-diaza-bicyclo[2.2.2]octane

B

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

C

1-<2-(diethylamino)ethyl>-4-methylpiperazine

1-<2-(diethylamino)ethyl>-4-methylpiperazine

D

N,N'-dimethyl-N,N'-bis<2-(4-methyl-1-piperazinyl)ethyl>ethylenediamine

N,N'-dimethyl-N,N'-bis<2-(4-methyl-1-piperazinyl)ethyl>ethylenediamine

Conditions
ConditionsYield
Multistep reaction. Further byproducts given;
1,4,8,11-tetramethyl-1,4,8,11-tetra-azacyclotetradecane
41203-22-9

1,4,8,11-tetramethyl-1,4,8,11-tetra-azacyclotetradecane

9-(n-propyl)fluorenyllithium tetramethylenediamine complex

9-(n-propyl)fluorenyllithium tetramethylenediamine complex

A

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

B

9-(n-propyl)fluorenyllithium hexamethyltetraazacyclotetradecane complex

9-(n-propyl)fluorenyllithium hexamethyltetraazacyclotetradecane complex

Conditions
ConditionsYield
In toluene at 25℃; Rate constant;
(1-ethyl-propenyl)-dimethyl-amine
32317-47-8

(1-ethyl-propenyl)-dimethyl-amine

N,N,N',N'-tetramethyl-1,2-diaminoethane-H+
71889-99-1

N,N,N',N'-tetramethyl-1,2-diaminoethane-H+

A

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

B

C7H15N*H(1+)

C7H15N*H(1+)

Conditions
ConditionsYield
ICR double resonance, proton affinity;
N,N-Dimethylisobutenylamin
20916-47-6

N,N-Dimethylisobutenylamin

N,N,N',N'-tetramethyl-1,2-diaminoethane-H+
71889-99-1

N,N,N',N'-tetramethyl-1,2-diaminoethane-H+

A

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

B

C6H13N*H(1+)

C6H13N*H(1+)

Conditions
ConditionsYield
ICR double resonance, proton affinity;
ethylene glycol
107-21-1

ethylene glycol

dimethyl amine
124-40-3

dimethyl amine

A

2-(N,N-dimethylamino)ethanol
108-01-0

2-(N,N-dimethylamino)ethanol

B

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

Conditions
ConditionsYield
With tris(triphenylphosphine)ruthenium(II) chloride at 120℃; for 3h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
With ruthenium trichloride at 120℃; for 2.5h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

allylmagnesium bromide
2622-05-1

allylmagnesium bromide

Bis(allylmagnesiumchlorid-TMEDA)

Bis(allylmagnesiumchlorid-TMEDA)

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 12h;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

C5H7BrMg*2C4H8O

C5H7BrMg*2C4H8O

C6H16N2*C5H7BrMg

C6H16N2*C5H7BrMg

Conditions
ConditionsYield
In tetrahydrofuran; pentane for 2h; Ambient temperature;100%
tetrahydrofuran
109-99-9

tetrahydrofuran

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

diphenylphosphane
829-85-6

diphenylphosphane

4C12H10PTe2(1-)*C6H16N2*14C4H8O*4Li(1+)

4C12H10PTe2(1-)*C6H16N2*14C4H8O*4Li(1+)

Conditions
ConditionsYield
Stage #1: tetrahydrofuran; N,N,N,N,-tetramethylethylenediamine; diphenylphosphane With n-butyllithium In tetrahydrofuran; hexane
Stage #2: With tellurium In tetrahydrofuran; hexane at -78 - 20℃;
100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

triphenyltin chloride
639-58-7

triphenyltin chloride

Ph3SnZnCl * N,N,N',N'-tetramethylethylenediamine

Ph3SnZnCl * N,N,N',N'-tetramethylethylenediamine

Conditions
ConditionsYield
In acetonitrile; benzene Electrolysis; absence of oxygen and moisture; W-cathode, Zn suspended on Pt-anode, 30 V, 25 mA, 3.0 h, Et4NClO4 electrolyte; sepn. of pptd. product (further crop on addn. of petroleum ether), washing (petroleum ether), drying (vac.); elem. anal.;100%
bis(η3-allyl-μ-chloropalladium(II))

bis(η3-allyl-μ-chloropalladium(II))

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

[η**3-2-propenyl](N,N,N',N'-tetramethylethylenediamine)palladium(II) dichloro(η**3-2-propenyl)palladate(II)
80533-23-9

[η**3-2-propenyl](N,N,N',N'-tetramethylethylenediamine)palladium(II) dichloro(η**3-2-propenyl)palladate(II)

Conditions
ConditionsYield
In acetone TMEDA added to -50°C soln.; stirred 1 h at -50°C; solvent vac. removed; recrystd. from acetone/toluene at -20°C; elem. anal.;100%
(bicyclo[2.2.1]hepta-2,5-diene)tetracarbonylmolybdenum(0)
12146-37-1, 124717-04-0

(bicyclo[2.2.1]hepta-2,5-diene)tetracarbonylmolybdenum(0)

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

A

(N,N,N',N'-tetramethylethylenediamine)tetracarbonylmolybdenum(0)
23301-98-6

(N,N,N',N'-tetramethylethylenediamine)tetracarbonylmolybdenum(0)

B

bicyclo[2.2.1]hepta-2,5-diene
121-46-0

bicyclo[2.2.1]hepta-2,5-diene

Conditions
ConditionsYield
In tetrahydrofuran reaction in a calorimeter under argon;A 100%
B n/a
{Li(μ-OB(CH(SiMe3)2)2}2

{Li(μ-OB(CH(SiMe3)2)2}2

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

LiOB(CH(SiMe3)2)2((Me2NCH2)2)
127161-53-9

LiOB(CH(SiMe3)2)2((Me2NCH2)2)

Conditions
ConditionsYield
In hexane react. at 25°C; filtering, filtrate at -20°C;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

titanium tetrachloride
7550-45-0

titanium tetrachloride

tetrachloro(N,N,N',N'-tetramethylethane-1,2-diamine)titanium(IV)
19033-22-8

tetrachloro(N,N,N',N'-tetramethylethane-1,2-diamine)titanium(IV)

Conditions
ConditionsYield
In hexane at 0℃; for 1h; Inert atmosphere;100%
In benzene solns. mixed at 10-20°C; filtered, washed (benzene), dried (vac.); elem. anal.;>99
In pentane solns. mixed at 10-20°C; filtered, washed (pentane), dried (vac.); elem. anal.;>99
aluminium hydride

aluminium hydride

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

N,N,N',N',-tetramethylethylenediamine*2AlH3
72049-53-7

N,N,N',N',-tetramethylethylenediamine*2AlH3

Conditions
ConditionsYield
In diethyl ether at 25°C; ppt. collected by centrifugation, washed with Et2O, dried, elem. anal.;100%
(cyclooctadienyl)(cyclopentadienyl)ruthenium chloride

(cyclooctadienyl)(cyclopentadienyl)ruthenium chloride

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

[(η5-C5H5)RuCl(N,N,N',N'-tetramethylethylenediamine)]
260066-12-4

[(η5-C5H5)RuCl(N,N,N',N'-tetramethylethylenediamine)]

Conditions
ConditionsYield
In acetone soln. of Ru-complex and ligand in acetone was stirred at room temp. for 2 h under Ar; solvent was removed under vac., washed with pentane;100%
p-nitrobenzene iodide
636-98-6

p-nitrobenzene iodide

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

bis(dibenzylideneacetone)-palladium(0)
32005-36-0

bis(dibenzylideneacetone)-palladium(0)

PdI(4-NO2C6H4)(N,N,N',N'-tetramethylethylenediamine)
191667-18-2

PdI(4-NO2C6H4)(N,N,N',N'-tetramethylethylenediamine)

Conditions
ConditionsYield
In not given byproducts: dibenzylideneacetone; N2-atmosphere; according to Markies, A. J. et al.: J. Organomet. Chem. 482 (1994) 191; elem. anal.;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

4-Iodoacetophenone
13329-40-3

4-Iodoacetophenone

bis(dibenzylideneacetone)-palladium(0)
32005-36-0

bis(dibenzylideneacetone)-palladium(0)

PdI(4-MeCOC6H4)(N,N,N',N'-tetramethylethylenediamine)
191667-17-1

PdI(4-MeCOC6H4)(N,N,N',N'-tetramethylethylenediamine)

Conditions
ConditionsYield
In not given byproducts: dibenzylideneacetone; N2-atmosphere; according to Markies, A. J. et al.: J. Organomet. Chem. 482 (1994) 191; elem. anal.;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

di-μ-chloro-bis[η**3-2-butenyl]dipalladium

di-μ-chloro-bis[η**3-2-butenyl]dipalladium

[(η**3-2-butenyl)(N,N,N',N'-tetramethylethylenediamine)palladium(II)] dichloro(η**3-2-butenyl)palladate

[(η**3-2-butenyl)(N,N,N',N'-tetramethylethylenediamine)palladium(II)] dichloro(η**3-2-butenyl)palladate

Conditions
ConditionsYield
In acetone TMEDA added dropwise at -50°C, stirred 1 h at -50°C; solvent vac. evapd.; trituration with ether, dried in vac.; elem. anal.;100%
silver tetrafluoroborate
14104-20-2

silver tetrafluoroborate

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

di-μ-chloro-bis[η**3-2-butenyl]dipalladium

di-μ-chloro-bis[η**3-2-butenyl]dipalladium

[η**3-2-butenyl](N,N,N',N'-tetramethylethylenediamine)palladium(II) tetrafluoroborate

[η**3-2-butenyl](N,N,N',N'-tetramethylethylenediamine)palladium(II) tetrafluoroborate

Conditions
ConditionsYield
In tetrahydrofuran byproducts: AgCl; π-2-butenylpalladium chloride dimer dissolved in THF; AgBF4 added; stirred 10 min; AgCl removed and washed with THF; TMEDA added dropwise toTHF extracts, stirred 10 min; solvent vac. removed; elem. anal.;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

di-μ-chloro-bis[η**3-3-phenyl-2-propenyl]dipalladium

di-μ-chloro-bis[η**3-3-phenyl-2-propenyl]dipalladium

[η**3-3-phenyl-2-propenyl](N,N,N',N'-tetramethylethylenediamine)palladium(II) dichloro(η**3-3-phenyl-2-propenyl)palladate(II)

[η**3-3-phenyl-2-propenyl](N,N,N',N'-tetramethylethylenediamine)palladium(II) dichloro(η**3-3-phenyl-2-propenyl)palladate(II)

Conditions
ConditionsYield
In acetone TMEDA added dropwise to -50°C soln.; stirred 1 h at -50°C; solvent vac. removed; elem. anal.;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

3,5-bis(3,5-dimethoxybenzocarboxymethyl)benzyl bromide
176650-93-4

3,5-bis(3,5-dimethoxybenzocarboxymethyl)benzyl bromide

N,N'-ethane-1,2-diyl N,N'-[3,5-bis(3,5-dimethoxybenzyloxy)benzyloxy] N,N,N',N'-tetramethylammonium dibromide

N,N'-ethane-1,2-diyl N,N'-[3,5-bis(3,5-dimethoxybenzyloxy)benzyloxy] N,N,N',N'-tetramethylammonium dibromide

Conditions
ConditionsYield
In N,N-dimethyl-formamide at 70℃; Inert atmosphere;100%
In N,N-dimethyl-formamide at 70℃; for 15h; Inert atmosphere;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

ThCl4(dimethoxyethane)2

ThCl4(dimethoxyethane)2

ThCl4(N,N-tetramethylethylenediamine)2

ThCl4(N,N-tetramethylethylenediamine)2

Conditions
ConditionsYield
In tetrahydrofuran excess N,N-tetramethylethylenediamine;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

[ThCl4(1,2-dimethoxyethane)2]
639084-65-4

[ThCl4(1,2-dimethoxyethane)2]

ThCl4(Me2NCH2CH2NMe2)2
159472-32-9

ThCl4(Me2NCH2CH2NMe2)2

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 0.5h;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

[Zr(C5H4NC(CH3)(CH2NSitBuMe2)2)(NNPh2)(Li(py))(phenylacetylene(-1H))]

[Zr(C5H4NC(CH3)(CH2NSitBuMe2)2)(NNPh2)(Li(py))(phenylacetylene(-1H))]

[Zr(C5H4NC(CH3)(CH2NSitBuMe2)2)(NNPh2)(Li(tetramethylethylenediamine))(phenylacetylene(-1H))]

[Zr(C5H4NC(CH3)(CH2NSitBuMe2)2)(NNPh2)(Li(tetramethylethylenediamine))(phenylacetylene(-1H))]

Conditions
ConditionsYield
In toluene at 20℃;100%
iodotrifluoromethane
2314-97-8

iodotrifluoromethane

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

2CF3I*C6H16N2

2CF3I*C6H16N2

Conditions
ConditionsYield
at -78℃; for 0.333333h; Schlenk technique; Inert atmosphere; Reflux;100%
at -78℃; for 0.333333h; Inert atmosphere; Reflux;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

2-bromo-N-hexylethanamide
5439-32-7

2-bromo-N-hexylethanamide

C22H48N4O2(2+)*2Br(1-)

C22H48N4O2(2+)*2Br(1-)

Conditions
ConditionsYield
In chloroform at 85℃; for 24h;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

2-Bromo-N-(n-octyl)acetamide
5326-97-6

2-Bromo-N-(n-octyl)acetamide

C26H56N4O2(2+)*2Br(1-)

C26H56N4O2(2+)*2Br(1-)

Conditions
ConditionsYield
In chloroform at 85℃; for 24h;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

2-bromo-N-decyl-acetamide
5345-68-6

2-bromo-N-decyl-acetamide

C30H64N4O2(2+)*2Br(1-)

C30H64N4O2(2+)*2Br(1-)

Conditions
ConditionsYield
In chloroform at 85℃; for 24h;100%
In acetonitrile for 1h; Reflux;44%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

[(tris(tert-butoxy)siloxy)2chromium(II)]2

[(tris(tert-butoxy)siloxy)2chromium(II)]2

[chromium(II)(tris(tert-butoxy)siloxy)2(N,N,N′,N′-tetramethylethylenediamine)]

[chromium(II)(tris(tert-butoxy)siloxy)2(N,N,N′,N′-tetramethylethylenediamine)]

Conditions
ConditionsYield
In hexane at 25℃; Inert atmosphere; Glovebox;100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

C38H68Li2N6O2

C38H68Li2N6O2

C21H40LiN5

C21H40LiN5

Conditions
ConditionsYield
In diethyl ether for 1h;100%
2-ethylhexyl bromide
18908-66-2

2-ethylhexyl bromide

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

N-(2-(dimethylamino)ethyl)-2-ethyl-N,N-dimethylhexan-1-aminium bromide

N-(2-(dimethylamino)ethyl)-2-ethyl-N,N-dimethylhexan-1-aminium bromide

Conditions
ConditionsYield
for 12h; Reflux;100%
1,3,5-tris(1-imidazolyl)benzene

1,3,5-tris(1-imidazolyl)benzene

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

2H2NO3(1-)*(x)H2O*Pd(2+)

2H2NO3(1-)*(x)H2O*Pd(2+)

C96H144N36Pd6

C96H144N36Pd6

Conditions
ConditionsYield
Stage #1: N,N,N,N,-tetramethylethylenediamine; 2H2NO3(1-)*(x)H2O*Pd(2+) In dimethyl sulfoxide at 80℃; for 0.166667h;
Stage #2: 1,3,5-tris(1-imidazolyl)benzene In dimethyl sulfoxide at 80℃; for 2h;
100%
N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

4-(bromomethyl)benzophenone
32752-54-8

4-(bromomethyl)benzophenone

ethylenebis(4-benzoylbenzyldimethylammonium) dibromide

ethylenebis(4-benzoylbenzyldimethylammonium) dibromide

Conditions
ConditionsYield
In chloroform at 20℃; for 72h;99.7%
In chloroform at 20℃; for 72h;99.7%
In chloroform
nido-NB10H13

nido-NB10H13

N,N,N,N,-tetramethylethylenediamine
110-18-9

N,N,N,N,-tetramethylethylenediamine

lithium triethylborohydride
22560-16-3

lithium triethylborohydride

Li(1+)*2(CH3)2N(CH2)2N(CH3)2*{NB10H12}(1-)={Li((CH3)2N(CH2)2N(CH3)2)2}{NB10H12}

Li(1+)*2(CH3)2N(CH2)2N(CH3)2*{NB10H12}(1-)={Li((CH3)2N(CH2)2N(CH3)2)2}{NB10H12}

Conditions
ConditionsYield
In tetrahydrofuran byproducts: B(C2H5)3, H2; addn. of Li(BHEt3) in THF to soln. of the borane at -78°C, stirred for 5 min at room temp., volatiles removed in vac., addn. of THF, addn. of tmeda;; concentrated, washed three times with pentane, dried;;99%
Post buying leads

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View