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
Cas:142-96-1
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquiryUnique advantages Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Colorless liquid Storage:Cool dry place Package:25kg/drum,200kg/drum Application:Chemical Transport
Cas:142-96-1
Min.Order:100 Kilogram
Negotiable
Type:Trading Company
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
Di-n-butyl ether Basic information Product Name: Di-n-butyl ether Synonyms: DIBUTYL ETHER;DIBUTYL OXIDE;DI-N-BUTYL ETHER;DL-N-BUTYL ETHER;BUTYL ETHER;1-BUTOXYBUTANE;1,1'-OXYBIS(BUTANE);(n-C4H9)2O CAS: 142-96-1 MF: C8H18O MW: 130.23 EINECS
Cas:142-96-1
Min.Order:1 Kilogram
FOB Price: $420.0
Type:Lab/Research institutions
inquiryDibutyl ether CAS:142-96-1 Items Specification Product name Di-n-butyl ether CAS 142-96-1 Appearance Colorless liquid Assay
Cas:142-96-1
Min.Order:1 Kilogram
FOB Price: $100.0 / 150.0
Type:Other
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 custo
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:142-96-1
Min.Order:0 Metric Ton
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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
Established in 2010, located in Hangzhou Qinglan science park, lingruichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. In our R&D centre, we have a staff of skilled and experie
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
Cas:142-96-1
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryWe 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
Cas:142-96-1
Min.Order:1 Gram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryHangzhou Huarong Pharm Co., Ltd.established since 2006 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World. Hu
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
R & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
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
Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS
Product Description Description & Specification Category Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug Standard Medical standard
Cas:142-96-1
Min.Order:1 Kilogram
FOB Price: $112.0
Type:Trading Company
inquiryAnsciep 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
Amoychem is committed to providing the top-quality chemical products and services Internationally. We offer our customers with friendly, professional service and reliable, high performance products that have been manufactured according to the accredi
low price and high purityAppearance:solid or liquid Storage:in sealed air resistant place Package:As customer require Application:Pharma;Industry;Agricultural Transportation:by sea or by airplane Port:any port in China
1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
Cas:142-96-1
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryDi-n-butyl ether Basic information Product Name: Di-n-butyl ether Synonyms: DIBUTYL ETHER;DIBUTYL OXIDE;DI-N-BUTYL ETHER;DL-N-BUTYL ETHER;BUTYL ETHER;1-BUTOXYBUTANE
Cas:142-96-1
Min.Order:500 Gram
Negotiable
Type:Trading Company
inquiryKnown for its best quality and competitve price, this chemicals we offered is widely appreciated by our customers.1) Standard:BP/USP/EP/Enterprise standard2) All Purity≥99%3) We are manufacturer and can provide high quality products with factory pric
Cas:142-96-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryCompany Aim: Customer First, Supporting Priority. Company Culture: People-Oriented, forge ahead We are specializing in providing customers with complete chemical raw materials. Aiming at solving customer’s substantive
Cas:142-96-1
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryProfile HeBei Ruishun Trade Co.LTD, registered capital one million,have a production of pharmaceutical raw materials, pharmaceutical raw materials factory reagent r&d center,Seek development by credit
Qingdao Sigma Chemical Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, peptide,Nootropis etc API, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc. Our Labo
Cas:142-96-1
Min.Order:1 Gram
FOB Price: $1.0
Type:Trading Company
inquiryHuBei ipure is a diversified product production and operation enterprise, with API, pharma intermediates, and other fine chemicals as well as R&D and pigments development and sales as one of the large enterprises, with more than 130 acres of
Conditions | Yield |
---|---|
In water | 97% |
Conditions | Yield |
---|---|
In water; butan-1-ol | 96.1% |
Conditions | Yield |
---|---|
With hydrogenchloride; tetrabutylphosphonium ion; silica gel at 170℃; under 760 Torr; | A 95% B 4 % Chromat. |
Conditions | Yield |
---|---|
With hydrogen; Pd-C | 95% |
With triethylsilane; silver hexafluoroantimonate at 20℃; for 1.5h; Green chemistry; | 80% |
With triethylsilane; 1-diphenylphosphino-8-triphenylstibonium-naphthalene triflate In dichloromethane at 20℃; for 0.25h; Catalytic behavior; Reagent/catalyst; Time; | 100 %Spectr. |
Stage #1: butyraldehyde With C18H25IrN4O(2+)*2CF3O3S(1-) In dichloromethane at 20℃; for 0.0833333h; Stage #2: With phenylsilane In dichloromethane at 20℃; |
Conditions | Yield |
---|---|
With copper acetylacetonate; carbon tetrabromide at 200℃; for 10h; Inert atmosphere; Sealed tube; | 92% |
With sulfuric acid; silica gel In hexane for 1h; Heating; | 80% |
With phosphotungstic acid In toluene at 200℃; under 22502.3 Torr; for 3h; Reagent/catalyst; Autoclave; Inert atmosphere; | 73.2% |
butan-1-ol
A
phosphoric acid tributyl ester
B
n-Butyl chloride
C
dibutyl ether
Conditions | Yield |
---|---|
With oxygen; phosphan; copper(l) chloride; copper dichloride at 24.9℃; Kinetics; Product distribution; Mechanism; ΔE(excit.), ΔS(excit.); other reagents, other catalysts; | A 90% B n/a C n/a |
With oxygen; phosphan; copper(l) chloride; copper dichloride at 24.9℃; | A 90% B n/a C n/a |
Conditions | Yield |
---|---|
With Cp*Ir(Cl)2(nBu2Im); silver trifluoromethanesulfonate at 130℃; for 2h; | A n/a B 90% |
D-Fructose
butan-1-ol
A
5-(butoxymethyl)furan-2-carbaldehyde
B
dibutyl ether
C
n-butyl formate
D
butyl levulinate
Conditions | Yield |
---|---|
With poly(p-styrenesulfonic acid)-grafted carbon nanotubes at 120℃; for 24h; Sealed tube; Green chemistry; chemoselective reaction; | A n/a B n/a C n/a D 78% |
(2-furyl)methyl alcohol
butan-1-ol
A
dibutyl ether
B
butyl levulinate
Conditions | Yield |
---|---|
With AQUIVION P87S perfluorosulfonic acid resin at 120℃; for 5h; Reagent/catalyst; Sealed tube; | A n/a B 76% |
Conditions | Yield |
---|---|
With potassium carbonate at 100℃; for 20h; | 60% |
Conditions | Yield |
---|---|
3-methyl-1-(4-sulfobutyl)imidazol-3-ium bis((trifluoromethyl)sulfonyl)azanide at 250℃; for 0.5h; Product distribution / selectivity; Irradiation; | A n/a B n/a C n/a D 57% |
With sulfated ZrO2 at 150℃; under 760.051 Torr; Kinetics; Temperature; |
(2-furyl)methyl alcohol
butan-1-ol
A
furfuryl alcohol butyl ether
B
dibutyl ether
C
butyl levulinate
Conditions | Yield |
---|---|
With AQUIVION P87S perfluorosulfonic acid resin at 120℃; for 2h; Catalytic behavior; Reagent/catalyst; Sealed tube; | A 9% B n/a C 56% D n/a |
benzyl alcohol
butan-1-ol
A
dibutyl ether
B
dibenzyl ether
C
benzyl 1-butyl ether
Conditions | Yield |
---|---|
With copper acetylacetonate; carbon tetrabromide at 150℃; for 8h; Inert atmosphere; Sealed tube; | A 25% B 40% C 55% |
With 5 wt percent copper(II) bromide supported on zeolite HY at 150℃; under 760.051 Torr; for 8h; | A n/a B n/a C 45% |
Conditions | Yield |
---|---|
With hydrogen; aluminum oxide; ruthenium-copper at 150℃; | A 52% B 48% |
With hydrogen; aluminum oxide; ruthenium-copper at 150℃; Mechanism; Product distribution; var. catalysts; |
methanol
2-methyl-propan-1-ol
A
tert-butyl methyl ether
B
isobutyl methyl ether
C
dibutyl ether
Conditions | Yield |
---|---|
With chromium(III) oxide Heating; | A 50% B 1.7 g C 1.3 g |
Conditions | Yield |
---|---|
In water | 97% |
Conditions | Yield |
---|---|
In water; butan-1-ol | 96.1% |
Conditions | Yield |
---|---|
With hydrogenchloride; tetrabutylphosphonium ion; silica gel at 170℃; under 760 Torr; | A 95% B 4 % Chromat. |
Conditions | Yield |
---|---|
With hydrogen; Pd-C | 95% |
With triethylsilane; silver hexafluoroantimonate at 20℃; for 1.5h; Green chemistry; | 80% |
With triethylsilane; 1-diphenylphosphino-8-triphenylstibonium-naphthalene triflate In dichloromethane at 20℃; for 0.25h; Catalytic behavior; Reagent/catalyst; Time; | 100 %Spectr. |
Stage #1: butyraldehyde With C18H25IrN4O(2+)*2CF3O3S(1-) In dichloromethane at 20℃; for 0.0833333h; Stage #2: With phenylsilane In dichloromethane at 20℃; |
Conditions | Yield |
---|---|
With copper acetylacetonate; carbon tetrabromide at 200℃; for 10h; Inert atmosphere; Sealed tube; | 92% |
With sulfuric acid; silica gel In hexane for 1h; Heating; | 80% |
With phosphotungstic acid In toluene at 200℃; under 22502.3 Torr; for 3h; Reagent/catalyst; Autoclave; Inert atmosphere; | 73.2% |
butan-1-ol
A
phosphoric acid tributyl ester
B
n-Butyl chloride
C
dibutyl ether
Conditions | Yield |
---|---|
With oxygen; phosphan; copper(l) chloride; copper dichloride at 24.9℃; Kinetics; Product distribution; Mechanism; ΔE(excit.), ΔS(excit.); other reagents, other catalysts; | A 90% B n/a C n/a |
With oxygen; phosphan; copper(l) chloride; copper dichloride at 24.9℃; | A 90% B n/a C n/a |
Conditions | Yield |
---|---|
With Cp*Ir(Cl)2(nBu2Im); silver trifluoromethanesulfonate at 130℃; for 2h; | A n/a B 90% |
D-Fructose
butan-1-ol
A
5-(butoxymethyl)furan-2-carbaldehyde
B
dibutyl ether
C
n-butyl formate
D
butyl levulinate
Conditions | Yield |
---|---|
With poly(p-styrenesulfonic acid)-grafted carbon nanotubes at 120℃; for 24h; Sealed tube; Green chemistry; chemoselective reaction; | A n/a B n/a C n/a D 78% |
(2-furyl)methyl alcohol
butan-1-ol
A
dibutyl ether
B
butyl levulinate
Conditions | Yield |
---|---|
With AQUIVION P87S perfluorosulfonic acid resin at 120℃; for 5h; Reagent/catalyst; Sealed tube; | A n/a B 76% |
Conditions | Yield |
---|---|
With potassium carbonate at 100℃; for 20h; | 60% |
butan-1-ol
A
1-butylene
B
(Z)-2-Butene
C
trans-2-Butene
D
dibutyl ether
Conditions | Yield |
---|---|
3-methyl-1-(4-sulfobutyl)imidazol-3-ium bis((trifluoromethyl)sulfonyl)azanide at 250℃; for 0.5h; Product distribution / selectivity; Irradiation; | A n/a B n/a C n/a D 57% |
With sulfated ZrO2 at 150℃; under 760.051 Torr; Kinetics; Temperature; |
(2-furyl)methyl alcohol
butan-1-ol
A
furfuryl alcohol butyl ether
B
dibutyl ether
C
butyl levulinate
Conditions | Yield |
---|---|
With AQUIVION P87S perfluorosulfonic acid resin at 120℃; for 2h; Catalytic behavior; Reagent/catalyst; Sealed tube; | A 9% B n/a C 56% D n/a |
benzyl alcohol
butan-1-ol
A
dibutyl ether
B
dibenzyl ether
C
benzyl 1-butyl ether
Conditions | Yield |
---|---|
With copper acetylacetonate; carbon tetrabromide at 150℃; for 8h; Inert atmosphere; Sealed tube; | A 25% B 40% C 55% |
With 5 wt percent copper(II) bromide supported on zeolite HY at 150℃; under 760.051 Torr; for 8h; | A n/a B n/a C 45% |
Conditions | Yield |
---|---|
With hydrogen; aluminum oxide; ruthenium-copper at 150℃; | A 52% B 48% |
With hydrogen; aluminum oxide; ruthenium-copper at 150℃; Mechanism; Product distribution; var. catalysts; |
methanol
2-methyl-propan-1-ol
A
tert-butyl methyl ether
B
isobutyl methyl ether
C
dibutyl ether
Conditions | Yield |
---|---|
With chromium(III) oxide Heating; | A 50% B 1.7 g C 1.3 g |
Conditions | Yield |
---|---|
With sulfuric acid at 0 - 200℃; Reagent/catalyst; Temperature; Autoclave; | A n/a B 50% |
ethanol
acetone
butan-1-ol
A
n-pentyl methyl ketone
B
dibutyl ether
C
2-Pentanone
Conditions | Yield |
---|---|
With Pd modified CsY zeolite at 215℃; | A 47% B 19 mg C 7.3% |
Conditions | Yield |
---|---|
3-methyl-1-(4-sulfobutyl)imidazol-3-ium bis((trifluoromethyl)sulfonyl)azanide at 350℃; Product distribution / selectivity; | A n/a B n/a C 45% |
monoaluminum phosphate at 299.9℃; | A 7.8% B 2.4% C 32.9% |
ethanol
acetone
butan-1-ol
A
n-pentyl methyl ketone
B
dibutyl ether
Conditions | Yield |
---|---|
With Pd modified CsY zeolite at 240℃; | A 43.4% B 156 mg |
Conditions | Yield |
---|---|
With magnesium hydride; zirconium(IV) chloride In tetrahydrofuran at 66 - 80℃; | A n/a B 34% |
Conditions | Yield |
---|---|
With Amberlyst 36 at 150℃; under 30.003 Torr; for 7h; Catalytic behavior; | A 20.1% B n/a |
DELOXAN ASP In carbon dioxide at 200℃; under 200 Torr; | A 33 % Turnov. B 1 % Turnov. |
Conditions | Yield |
---|---|
With hydrogen; Cobalt rhodium; iodine at 200℃; under 420 Torr; for 2h; Product distribution; other promoter, other pressure; | A 16% B 19% |
butan-1-ol
A
trans-2-Butene
B
dibutyl ether
C
1-(1-methylpropoxy)butane
Conditions | Yield |
---|---|
With Amberlyst 35 at 150℃; under 30.003 Torr; for 7h; Catalytic behavior; | A n/a B 16.6% C n/a |
butan-1-ol
A
1-butylene
B
propene
C
dibutyl ether
D
butyraldehyde
Conditions | Yield |
---|---|
γ-Al2O3 at 299.9℃; Further byproducts given; | A 4.3% B 2.1% C 11.5% D 2.4% |
butan-1-ol
A
1-butylene
B
4-methyl-pent-3-en-2-one
C
dibutyl ether
D
butyraldehyde
Conditions | Yield |
---|---|
monoaluminum phosphate at 299.9℃; Further byproducts given; | A 1.3% B 0.4% C 5.3% D 1.9% |
butan-1-ol
A
1-butylene
B
dibutyl ether
C
butyraldehyde
D
butanoic acid ethyl ester
Conditions | Yield |
---|---|
monoaluminum phosphate at 299.9℃; Further byproducts given; | A 1.3% B 5.3% C 1.9% D 1.5% |
Conditions | Yield |
---|---|
With ammonia under 7600 Torr; |
Conditions | Yield |
---|---|
With ammonia |
Conditions | Yield |
---|---|
With diethyl ether |
Conditions | Yield |
---|---|
With Selectfluor; trifluoroacetic acid In acetonitrile at 25℃; for 24h; Schlenk technique; Inert atmosphere; Irradiation; | 99% |
With sodium persulfate; [4,4’-bis(1,1-dimethylethyl)-2,2’-bipyridine-N1,N1‘]bis [3,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl-N]phenyl-C]iridium(III) hexafluorophosphate; trifluoroacetic acid In water at 23℃; for 4h; Minisci Aromatic Substitution; Inert atmosphere; Irradiation; regioselective reaction; | 88% |
With dipotassium peroxodisulfate; trifluoroacetic acid In water; acetonitrile for 2h; Solvent; Minisci Aromatic Substitution; Reflux; | 68% |
Conditions | Yield |
---|---|
With palladium diacetate at 100℃; for 2h; Microwave irradiation; | 96.1% |
With molybdenum(V) chloride In dichloromethane at 80℃; for 3h; | 75% |
With molybdenum(V) chloride In 1,2-dichloro-ethane at 80℃; for 3h; | 75% |
dibutyl ether
3,4,5,6-tetrafluorophthalic acid
2,3,4,5-tetrafluorobenzoic acid
Conditions | Yield |
---|---|
With sulfuric acid; dimethyl sulfoxide; triethylamine In water; toluene | 94% |
[N-(trifluoromethylsulfonyl)imino][4-(trifluoromethyl)phenyl]-λ3-bromane
dibutyl ether
N-(1-butoxybutyl)trifluoromethanesulfonamide
Conditions | Yield |
---|---|
at 20℃; for 2h; Inert atmosphere; regioselective reaction; | 94% |
Conditions | Yield |
---|---|
With Benzoylformic acid at 20℃; Sealed tube; Irradiation; diastereoselective reaction; | 93% |
dibutyl ether
5-phenyl-2H-1,2,3,4-tetrazole
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide; tetra-(n-butyl)ammonium iodide In water at 80℃; for 12h; | 90% |
With tert.-butylhydroperoxide; iron(III) chloride hexahydrate In water; 1,2-dichloro-ethane at 90℃; for 12h; Inert atmosphere; | 80% |
Conditions | Yield |
---|---|
With water; tetraphenylphosphonium bromide; potassium hydroxide at 60℃; for 24h; Inert atmosphere; Darkness; | A 89% B 74% |
With water; tetraphenylphosphonium bromide; potassium hydroxide at 60℃; for 24h; Inert atmosphere; Darkness; | A 56 %Chromat. B 83% |
Conditions | Yield |
---|---|
With hexaethylbisphosphonium bistriiodide Heating; | 88% |
With phosphoric acid; potassium iodide |
Conditions | Yield |
---|---|
In dibutyl ether; toluene byproducts: LiBr, LiOMe; (N2); Schlenk technique; soln. of PhLi in Bu2O was dild. with toluene and added dropwise with stirring to soln. of Fe complex in toluene at -78°C; slowly warmed to room temp.; stirred overnight; filtered; stored at -35°C for 3 d; elem. anal.; | 87% |
(5,10,15,20-tetra(2,4,6-trimethylphenyl)porphyrinato)rhodium(III) iodide
dibutyl ether
propyl(5,10,15,20-tetramesitylporphyrinato)rhodium(III)
Conditions | Yield |
---|---|
With KOH In dibutyl ether reaction of rhodium compd. with n-butyl ether in presence of 10 equiv. of KOH at 100°C for 1 d under N2; | 86% |
With KOH In dibutyl ether reaction of rhodium compd. with n-butyl ether in presence of 10 equiv. of KOH at 80°C for 1 d under N2; | 53% |
With KOH In dibutyl ether reaction of rhodium compd. with n-butyl ether in presence of 20 equiv. of KOH at 40°C for 1 d under N2; | 35% |
Conditions | Yield |
---|---|
With water; tetraphenylphosphonium bromide; potassium hydroxide at 100℃; for 24h; Inert atmosphere; Darkness; | 86% |
Conditions | Yield |
---|---|
FeCl3-Montmorillonite K-10 at 70℃; for 24h; | 83% |
With thallium(III) nitrate Ambient temperature; | 57% |
With sulfuric acid |
dibutyl ether
carbon monoxide
4-Fluorobenzyl bromide
A
1-bromo-butane
B
(4-Fluoro-phenyl)-acetic acid butyl ester
Conditions | Yield |
---|---|
1,5-hexadienerhodium(I)-chloride dimer; potassium iodide at 75 - 90℃; under 735.5 Torr; overnight or in n-heptane; | A n/a B 83% |
5,10,15,20-tetra(2,4,6-trimethylphenyl)porphyrinate rhodium(II)
dibutyl ether
propyl(5,10,15,20-tetramesitylporphyrinato)rhodium(III)
Conditions | Yield |
---|---|
With PPh3; KOH; Ph4PBr In dibutyl ether; water byproducts: HCO2Bu; under N2; in the dark; Rh compd. reacted with n-butyl ether in presence of PPh3 (1 equiv.), KOH (10 equiv.), H2O (50 equiv.) and Ph4PBr (0.1 equiv.) at 25°C for 10 min; | 83% |
In dibutyl ether reaction of rhodium compd. with dibutyl ether at 100°C for 1 d; | 37% |
5,10,15,20-tetra(2,4,6-trimethylphenyl)porphyrinate rhodium(II)
dibutyl ether
A
n-butyl formate
propyl(5,10,15,20-tetramesitylporphyrinato)rhodium(III)
Conditions | Yield |
---|---|
With water; tetraphenylphosphonium bromide; triphenylphosphine; potassium hydroxide at 25℃; Inert atmosphere; Darkness; regioselective reaction; | A 48 %Chromat. B 83% |
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