As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
Cas:58-72-0
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryWelcome 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
Cas:58-72-0
Min.Order:0 Metric Ton
Negotiable
Type:Manufacturers
inquiryThe 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
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
Cas:58-72-0
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryTriphenylethylene Henan Tianfu Chemical Co.,LTD was built in 2009 with an ISO certificate in the past 5 years, we have grown up as a famous fine chemicals supplier in china and we had established stable business re
Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con
Cas:58-72-0
Min.Order:1 Kilogram
FOB Price: $15.0 / 50.0
Type:Trading Company
inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:58-72-0
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
inquiry1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized
Cas:58-72-0
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryPrice, service, company and transport advantage: 1.place of origin china with super quality by reasonable price. 2. it's customers' right to choose the package (ems, dhl, fedex, ups); 3. it's customers' right to
Cas:58-72-0
Min.Order:100 Gram
Negotiable
Type:Trading Company
inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
Cas:58-72-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryBest quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia
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
Cas:58-72-0
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryJ&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
Cas:58-72-0
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryZhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed
Cas:58-72-0
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
Cas:58-72-0
Min.Order:1 Metric Ton
FOB Price: $7.0 / 8.0
Type:Trading Company
inquiryAppearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
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
Shanghai Lonwin Chemical company is a subsidiary of Lonwin Industry Group Limited, was established in 2011 and is headquartered in Shanghai, adjacent to China National Convention and Exhibition Center and Hongqiao transportation hub.Lonwinchem is
Cas:58-72-0
Min.Order:100 Kilogram
FOB Price: $100.0 / 150.0
Type:Other
inquiry1.High quality : the purity is 99% min . through multiple producing procedures. 2.Competitive price : low price because of our skilled production technolpgy ,save the production cost at most , and give big profit room to our customers254.Safe and fa
Acmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:58-72-0
Min.Order:1 bottle
Negotiable
Type:Lab/Research institutions
inquiryhigh 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
Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp
Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
★.Best quality according to requirement ★.Competitive price in China market ★.Mature Technical support ★.Professional logistic support
We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Application:intermediate
We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:white crystals powder Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as
TriphenylethyleneAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Conditions | Yield |
---|---|
With water; acetic acid; bis-triphenylphosphine-palladium(II) chloride at 20℃; for 6h; | 100% |
With bis-triphenylphosphine-palladium(II) chloride; water; acetic acid at 20℃; for 6h; Catalytic behavior; Reagent/catalyst; Temperature; Inert atmosphere; Sealed tube; | 94% |
iodobenzene
(E)-2,2′-(1-phenylethene-1,2-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)
Triphenylethylene
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); sodium hydroxide In tetrahydrofuran; water at 70℃; for 4h; Suzuki-Miyaura Coupling; | 100% |
1-dimethyl(2-pyridyl)silyl-1,2,3-triphenylethene
Triphenylethylene
Conditions | Yield |
---|---|
With tetrabutyl ammonium fluoride In tetrahydrofuran at 60℃; for 1h; | 99% |
Conditions | Yield |
---|---|
With tetraethylammonium perchlorate; triethylamine In ethanol; dimethyl sulfoxide at 20℃; for 18h; Electrolysis; Green chemistry; | 98% |
With lithium aluminium tetrahydride; nickel dichloride In tetrahydrofuran < 0 deg C; | 95% |
With lithium aluminium tetrahydride; nickel dichloride In tetrahydrofuran Product distribution; < 0 deg C; other triarylvinyl halogenides, other transition metal halides; | 95% |
With 2,3-diethynylquinoxaline; tetrabutylammonium tetrafluoroborate In N,N-dimethyl-formamide at 25℃; Product distribution; Rate constant; Thermodynamic data; -1.2 V vs. Ag/AgI; various mediators; indirect electrochemical reduction of vinyl halides and related compounds; rate constants and free energies of activation for electron transfer from electrochemically generated anion radicals to vinyl halides; | |
With Diethyl phosphonate; tert-butyl alcohol In acetonitrile at 25℃; Product distribution; Kinetics; Further Variations:; Solvents; |
Conditions | Yield |
---|---|
Stage #1: phenylmagnesium bromide; diphenyl acetylene With nickel(II) chloride hexahydrate In tetrahydrofuran; toluene at 20℃; for 1h; Inert atmosphere; Schlenk technique; Stage #2: With water In tetrahydrofuran; toluene Catalytic behavior; Reagent/catalyst; Solvent; Concentration; Inert atmosphere; Schlenk technique; | 98% |
With manganese(ll) chloride In tetrahydrofuran; toluene at 100℃; for 4h; | 60% |
Stage #1: phenylmagnesium bromide; diphenyl acetylene With 1,1'-bis-(diphenylphosphino)ferrocene; iron(III)-acetylacetonate; 1,2-dichloro-2-methylpropane In tetrahydrofuran at 0℃; for 1h; Inert atmosphere; Schlenk technique; Stage #2: With hydrogenchloride In tetrahydrofuran; water Catalytic behavior; Reagent/catalyst; | 24 %Chromat. |
Conditions | Yield |
---|---|
With silver(I) acetate; palladium diacetate; acetic acid at 110℃; for 6h; Heck reaction; | 97% |
With dipalladium(II)(1,1'-di-t-butyl-3,3'-(1,2-ethanediyl)bisimidazolium)dipyridinetetradichloride; tetrabutylammomium bromide; sodium acetate In N,N-dimethyl acetamide at 120℃; for 18h; Heck Reaction; Inert atmosphere; | 71% |
Conditions | Yield |
---|---|
With 15-crown-5; sodium hydride In tetrahydrofuran at 0 - 25℃; for 3h; | 96% |
With potassium tert-butylate; toluene |
Conditions | Yield |
---|---|
With triethylamine; bis(acetato)bis(triphenylphosphine)palladium(0) In acetonitrile at 80℃; for 3.5h; | 96% |
With tris-(dibenzylideneacetone)dipalladium(0); potassium carbonate; chlorobenzene In ethanol at 70℃; for 2h; Catalytic behavior; Reagent/catalyst; Inert atmosphere; Schlenk technique; | 80% |
1,2,2-triphenyl-1-iodoethylene
A
Triphenylethylene
B
9-Benzylidene-9H-fluorene
Conditions | Yield |
---|---|
With palladium diacetate; cesium pivalate; bis-diphenylphosphinomethane In N,N-dimethyl-formamide at 100℃; for 24h; | A 4% B 96% |
With sodium acetate; dimethyl amine; bis-diphenylphosphinomethane; palladium diacetate at 100℃; for 36h; | A 48% B 52% |
Conditions | Yield |
---|---|
With (N,N-diisopropylamino)diphenylphosphine; potassium carbonate; palladium dichloride In tetrahydrofuran at 20 - 65℃; Inert atmosphere; | 96% |
With acetic acid; tetrakis(triphenylphosphine) palladium(0) In 1,4-dioxane at 80℃; for 12h; | 91% |
With water; palladium diacetate; bis(pinacol)diborane; tricyclohexylphosphine In tetrahydrofuran at 80℃; for 4h; | 90% |
Conditions | Yield |
---|---|
With potassium fluoride; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; palladium diacetate; propionic acid at 20℃; for 1h; sealed tube; | 95% |
With palladium diacetate; sodium acetate In acetic acid at 25℃; for 27h; | 69 % Chromat. |
bromobenzene
diphenyl acetylene
bis(pinacol)diborane
A
Triphenylethylene
B
1,1,2,2-tetraphenylethylene
Conditions | Yield |
---|---|
Stage #1: diphenyl acetylene; bis(pinacol)diborane With tetrakis(triphenylphosphine)platinum In 1,4-dioxane at 180℃; for 0.5h; microwave irradiation; Stage #2: bromobenzene With palladium diacetate; potassium hydroxide; triphenylphosphine In 1,4-dioxane at 140℃; for 0.5h; Suzuki cross-coupling reaction; microwave irradiation; Further stages.; | A n/a B 95% |
2-phenyl[1,3,2]dioxaborolane
1-bromo-2-(1-phenylpropen-1-yl)benzene
Triphenylethylene
Conditions | Yield |
---|---|
With tris(o-methoxyphenyl)phosphine; palladium diacetate; palladium; cesium pivalate In tetrahydrofuran at 110℃; for 3h; Schlenk technique; Inert atmosphere; | 95% |
Conditions | Yield |
---|---|
With [1,1'-bis(diphenylphosphino)ferrocene]nickel(II) chloride; ethanol; potassium hexamethylsilazane In toluene at 150℃; for 8h; Inert atmosphere; Molecular sieve; | 95% |
Conditions | Yield |
---|---|
With potassium hydroxide; triphenylphosphine; palladium diacetate In tetrahydrofuran; methanol at 25℃; for 1h; Suzuki cross-coupling; | 94% |
Conditions | Yield |
---|---|
With tris-(dibenzylideneacetone)dipalladium(0); trifuran-2-yl-phosphane; lithium tert-butoxide In toluene at 80℃; for 3h; Inert atmosphere; | 94% |
Conditions | Yield |
---|---|
With palladium(II) acetylacetonate; N,N,N,N,-tetramethylethylenediamine; copper(I) bromide In 1-methyl-pyrrolidin-2-one at 170℃; for 16h; Inert atmosphere; | 94% |
Conditions | Yield |
---|---|
iodine at 60℃; for 4h; | 93% |
With potassium hydrogensulfate at 155 - 160℃; | |
With acetic acid |
Conditions | Yield |
---|---|
With 1,1'-bis-(diphenylphosphino)ferrocene; cesium acetate; copper diacetate In tetrahydrofuran at 80℃; for 24h; Reagent/catalyst; diastereoselective reaction; | 93% |
With formic acid; triethylamine; bis(acetato)bis(triphenylphosphine)palladium(0) In acetonitrile at 80℃; for 6.5h; Product distribution; Mechanism; reaction with various aryl iodides; | 87% |
With formic acid; triethylamine; bis(acetato)bis(triphenylphosphine)palladium(0) In acetonitrile at 80℃; for 6.5h; | 87% |
Stage #1: diphenyl acetylene With ethylmagnesium bromide; iron(II) chloride In diethyl ether at 20℃; for 0.25h; Inert atmosphere; Stage #2: iodobenzene With bis(triphenylphosphine)nickel(II) chloride In diethyl ether at 20℃; for 3.5h; Inert atmosphere; Stage #3: With hydrogenchloride; water In diethyl ether | 80% |
With sodium; triphenylphosphine; palladium diacetate In methanol at 25℃; for 24h; | 64% |
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 120℃; for 24h; Heck Reaction; Inert atmosphere; | 93% |
With silver(I) acetate; palladium diacetate; acetic acid at 110℃; for 0.5h; Heck reaction; | 92% |
With silver(I) acetate; palladium diacetate In acetic acid at 110℃; for 2h; | 88% |
Conditions | Yield |
---|---|
With hafnium(IV) trifluoromethanesulfonate; 1-n-butyl-3-methylimidazolium hexafluoroantimonate at 85℃; for 1h; Friedel-Crafts alkenylation; | 92% |
With 1-n-butyl-3-methylimidazolium hexafluoroantimonate; hafnium(IV) trifluoromethanesulfonate at 85℃; for 1h; Friedel-Crafts alkenylation; | 92% |
With tributyl borane; Pd2(p-Tol)2(μ-OH)(μ-dpfam) In tetrahydrofuran at 120℃; for 17h; | 64% |
Conditions | Yield |
---|---|
Stage #1: phenyl trimethylsiloxane; diphenyl acetylene With chloro(1,5-cyclooctadiene)rhodium(I) dimer; tetrabutyl ammonium fluoride; copper diacetate; triphenylphosphine In toluene at 20℃; for 2h; Stage #2: With water In toluene at 110℃; for 12h; | 92% |
Conditions | Yield |
---|---|
With palladium(II) acetylacetonate; N,N,N,N,-tetramethylethylenediamine; copper(I) bromide at 140℃; for 16h; Inert atmosphere; | 92% |
Conditions | Yield |
---|---|
In chloroform-d1 for 2h; Photolysis; Title compound not separated from byproducts; | A 9% B 91% |
Triphenylvinyl bromide
ethylzinc chloride
A
Triphenylethylene
B
but-1-ene-1,1,2-triyltribenzene
Conditions | Yield |
---|---|
With 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; palladium diacetate at 100℃; Product distribution; Further Variations:; Reagents; Catalysts; Temperatures; Negishi coupling; | A n/a B 91% |
Conditions | Yield |
---|---|
acetylacetonatodicarbonylrhodium(l) In water; toluene at 110℃; for 12h; Product distribution; Further Variations:; Catalysts; Solvents; | 90% |
Conditions | Yield |
---|---|
With palladium diacetate; trifluoroacetic acid; naphthalene-1,8-diamine In 1,4-dioxane; water at 120℃; for 24h; Catalytic behavior; Reagent/catalyst; Solvent; Inert atmosphere; Sealed tube; | 90% |
Conditions | Yield |
---|---|
With [bis(acetato)-(η-p-cymene)-ruthenium] In 1,4-dioxane; n-heptane; 1,3,5-trimethyl-benzene at 80℃; for 48h; Inert atmosphere; Sealed tube; regioselective reaction; | 90% |
With α-picoline; [ruthenium(II)(η6-1-methyl-4-isopropyl-benzene)(chloride)(μ-chloride)]2; guanidinium carbonate; acetic acid In toluene at 120℃; Inert atmosphere; | 62% |
With [Ru(O2CMes)2(p-cymene)]; vanadia In toluene at 100℃; for 24h; Inert atmosphere; | 43% |
Conditions | Yield |
---|---|
With palladium diacetate; potassium carbonate; tris-(o-tolyl)phosphine In N,N-dimethyl-formamide at 130℃; for 48h; Heck reaction; Inert atmosphere; | 89% |
With C24H26N4O2Pd2*2ClO4(1-); sodium acetate In 1-methyl-pyrrolidin-2-one at 140℃; Sealed tube; Air; | 61% |
With N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 150℃; for 48h; Heck Reaction; Inert atmosphere; | 24% |
With {2,6-bis[(di-1-piperidinylphosphino)amino]phenyl}palladium(II) chloride; potassium carbonate In N,N-dimethyl-formamide; toluene at 160℃; for 20h; Heck reaction; Inert atmosphere; | |
With {2,6-bis[(di-1-piperidinylphosphino)amino]phenyl}palladium(II) chloride; potassium carbonate In N,N-dimethyl-formamide; toluene at 160℃; for 20h; Mizoroki-Heck reaction; Inert atmosphere; |
Conditions | Yield |
---|---|
With potassium phosphate; bis(tricyclohexylphosphine)nickel(II) dichloride; water In 1,4-dioxane; toluene at 110℃; for 20h; Suzuki-Miyaura coupling; Inert atmosphere; | 89% |
Triphenylethylene
chlorotriphenylethylene
Conditions | Yield |
---|---|
With aluminium trichloride; benzeneseleninyl chloride In dichloromethane Ambient temperature; | 100% |
With aluminium trichloride; benzeneseleninyl chloride In dichloromethane for 3h; Ambient temperature; | 100% |
With phosphorus pentachloride at 190 - 200℃; |
Conditions | Yield |
---|---|
With n-butyllithium; [(1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene)FeCl2]; hydrogen In toluene at 80℃; under 7500.75 Torr; for 16h; Sealed tube; | 99% |
Stage #1: Triphenylethylene With lithium triethylborohydride; cobalt(II) bromide In tetrahydrofuran Inert atmosphere; Glovebox; Stage #2: With hydrogen In tetrahydrofuran at 20℃; under 1500.15 Torr; for 3h; Reagent/catalyst; | 99% |
With iodine; hypophosphorous acid In acetic acid for 24h; Heating; | 97% |
Conditions | Yield |
---|---|
With (NMe4)(Co-ortho-phenylenebis(N'-methyloxamidate)*2H2O*CH3CN; oxygen; pivalaldehyde In fluorobenzene for 2h; Ambient temperature; | 98% |
With Oxone; edetate disodium; sodium hydrogencarbonate; 1,1-dioxotetrahydrothiopyran-4-one In acetonitrile for 6h; Ambient temperature; | 97% |
With rhodium(II) acetate dimer; oxygen; isobutyraldehyde In acetone at 20℃; for 0.5h; | 95% |
Triphenylethylene
2-fluoro-1,1,2-triphenylethanol
Conditions | Yield |
---|---|
With water; N-fluorobis<(trifluoromethyl)sulfonyl>imide In dichloromethane at 0℃; for 1.5h; | 98% |
With Selectfluor; water In acetonitrile for 0.0333333h; Microwave irradiation; regioselective reaction; | 95% |
With water; 1-fluoro-4-hydroxy-1,4-diazoniabicyclo[2,2,2]octane-1,4-bis(tetrafluoroborate) In acetonitrile at 35℃; for 0.5h; | 98 % Spectr. |
Conditions | Yield |
---|---|
With aluminum tri-bromide; benzeneseleninyl chloride In dichloromethane for 3h; Ambient temperature; | 97% |
With bromine In chloroform at -78℃; for 6h; | 87% |
Stage #1: Triphenylethylene With bromine In chloroform at 20℃; for 1.5h; Stage #2: With triethylamine In chloroform at 20℃; | 87% |
Triphenylethylene
1,2-difluoro-1,1,2-triphenylethane
Conditions | Yield |
---|---|
With (HF)nPy; N-fluorobis<(trifluoromethyl)sulfonyl>imide In dichloromethane at 0℃; for 2h; | 96% |
With xenon difluoride; hydrogen fluoride In dichloromethane for 1h; | 44% |
With silver fluoride; titanium(IV) oxide In acetonitrile for 48h; Ambient temperature; Irradiation; | 7 % Spectr. |
Triphenylethylene
Conditions | Yield |
---|---|
With palladium on activated charcoal; tetrabutylammomium bromide; water-d2; cesium fluoride; silicon at 100℃; for 24h; | 96% |
Stage #1: Triphenylethylene With sodium In tetrahydrofuran Inert atmosphere; Stage #2: With water-d2 In tetrahydrofuran Inert atmosphere; |
Conditions | Yield |
---|---|
With {Co(II)(DBF2)2(H2O)2} In acetonitrile at 20℃; for 18h; Sealed tube; UV-irradiation; Inert atmosphere; | 94% |
With cyclohexane; iodine Irradiation.UV-Licht; | |
palladium diacetate; palladium dichloride In 1,4-dioxane; acetic acid Heating; | |
With iodine; oxygen In cyclohexane Irradiation; | |
In ethanol Irradiation; |
Conditions | Yield |
---|---|
With Selectfluor In acetonitrile for 0.025h; Microwave irradiation; regioselective reaction; | 94% |
With Selectfluor In acetonitrile at 22℃; for 1h; Yield given; | |
With 1-fluoro-4-hydroxy-1,4-diazoniabicyclo[2,2,2]octane-1,4-bis(tetrafluoroborate) In acetonitrile at 35℃; for 0.5h; | 97 % Spectr. |
With 1-fluoro-4-hydroxy-1,4-diazoniabicyclo[2,2,2]octane-1,4-bis(tetrafluoroborate) In acetonitrile at 24℃; Kinetics; Fluorination; Nucleophilic addition; | |
With Selectfluor |
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