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 quantities
Cas:503-38-8
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryhebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm
Cas:503-38-8
Min.Order:1 Metric Ton
FOB Price: $1.0 / 3.0
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:503-38-8
Min.Order:5 Kiloliter
FOB Price: $1.2 / 5.0
Type:Manufacturers
inquiryOur company 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 relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so on.O
Cas:503-38-8
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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
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
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
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:503-38-8
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquirySuperior quality, moderate price & quick delivery. Appearance:clear, colorless liquid Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Used as
Cas:503-38-8
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryProduct 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,
Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
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
high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier
R & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
Cas:503-38-8
Min.Order:0
Negotiable
Type:Manufacturers
inquiryBest service,high quality and cheap price. Storage:Keep away from heat,sparks and flames. Package:25kg/50kg/200kg drum or Customer demand Application:Used as pharmaceutical intermediates Transportation:BY sea/air or by courier
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
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
Cas:503-38-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryAmoychem 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
High quality Diphosgene supplier in China CAS NO.503-38-8 Application:High quality Diphosgene supplier in China CAS NO.503-38-8
Cas:503-38-8
Min.Order:0
Negotiable
Type:Other
inquiry1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highl
Cas:503-38-8
Min.Order:0
Negotiable
Type:Trading Company
inquiryHigh quality Diphosgene supplier in China CAS NO.503-38-8Appearance:liquid Storage:keep dry Package:25kg/bag or follow your requirement Application:pharmaceutical intermediates Transportation:By express (Door to door) such as FEDEX, DHL, EMS for smal
Cas:503-38-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryhigh purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:any port in China
in storeAppearance:Colorless transparent liquid Package:100g Application:Organic Chemicals
1 We are a business group listed on the Chinese Stock Market with more than 20 years of experience providing customized services. 2.A broad range of high quality products, manufactured by leading producers, and supported with outstanding quality
Cas:503-38-8
Min.Order:25 Kilogram
Negotiable
Type:Manufacturers
inquiry1.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:503-38-8
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquiryDiphosgene Basic information Product Name: Diphosgene Synonyms: Carbonochloridic acid, trichloromethyl ester;Carbonochloridicacid,trichloromethylester;carbonochlori
Wuhan Sun-shine Bio-technology Corporation Limited is specializing in the anticancer, antitumor,heart head blood-vessel,pharmaceutical intermediates,fine Chemicals production and customization. Company has strong ability of research and development
Conditions | Yield |
---|---|
With chlorine at 75 - 85℃; for 35h; | 84% |
bei Chlorierung im Sonnenlicht; | |
bei der Chlorierung schliesslich; | |
bei der Chlorierung im UV-Licht; die Bildungsgeschwindigkeit waechst mit steigender Temperatur bis 110-112grad; | |
beim Chlorieren im Sonnenlicht; |
carbonochloridic acid, chloromethyl ester
A
dichloromethoxycarbonyl chloride
B
trichloromethyl chloroformate
Conditions | Yield |
---|---|
With chlorine for 61h; | A 76% B n/a |
With chlorine for 61h; Yields of byproduct given; |
Methyl formate
A
dichloromethoxycarbonyl chloride
B
carbonochloridic acid, chloromethyl ester
C
trichloromethyl chloroformate
Conditions | Yield |
---|---|
Bei der Chlorierung im Licht; | |
With oxygen; chlorine at 22.85℃; Kinetics; Further Variations:; Reagents; |
Conditions | Yield |
---|---|
bei der Chlorierung im UV-Licht; die Bildungsgeschwindigkeit waechst mit steigender Temperatur bis 110-112grad; | |
beim Chlorieren im Sonnenlicht; | |
With diacetyl peroxide; chlorine at 60℃; unter Ausschluss von Licht; | |
durch photochemische Chlorierung; | |
With chlorine im Licht einer Metallfadenlampe; |
bis(trichloromethyl) carbonate
trichloromethyl chloroformate
bis(trichloromethyl) carbonate
A
phosgene
B
trichloromethyl chloroformate
Conditions | Yield |
---|---|
beim Destillieren; | |
beim Destillieren; | |
With chloride In hexane at 20℃; Kinetics; | |
distn. or warming at reflux cooling; |
Conditions | Yield |
---|---|
mit ueberschuessigem Chlor; | |
im Sonnenlicht entsteht zunaechst Chlorameisensaeuremethylester; | |
mit ueberschuessigem Chlor; |
4,5-methylenedioxyanthranilic acid
trichloromethyl chloroformate
1,3-dioxolo<4,5-g><3,1>benzoxazine-6,8(5H)dione
Conditions | Yield |
---|---|
In 1,4-dioxane for 6h; Heating; | 100% |
2-(2-nitrophenyl)propanol
trichloromethyl chloroformate
2-(2-nitrophenyl)propyl chloroformate
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
With triethylamine In tetrahydrofuran 1.) 0 deg C, 30 min, 2.) room temperature, 2 h; | 96% |
Yield given; | |
With triethylamine In tetrahydrofuran at 0 - 20℃; for 3.75h; | |
With 4-methyl-morpholine In tetrahydrofuran |
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 3h; | 100% |
2-(5-bromo-2-nitrophenyl)propan-1-ol
trichloromethyl chloroformate
2-(5-bromo-2-nitrophenyl)propyl carbonochloridate
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
In tetrahydrofuran; triethylamine at 0℃; for 1h; | 99% |
MANDELIC ACID
trichloromethyl chloroformate
(d)-5-phenyl-1,3-dioxolan-2,4-dione
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 8h; | 100% |
p-chloromandelic acid
trichloromethyl chloroformate
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 8h; | 100% |
Conditions | Yield |
---|---|
In tetrahydrofuran at 20℃; for 8h; | 100% |
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 8h; | 100% |
phenyllactic acid
trichloromethyl chloroformate
5-benzyl-1,3-dioxolane-2,4-dione
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 8h; | 100% |
4-fluoromandelic acid
trichloromethyl chloroformate
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 8h; | 100% |
2-chloromandelic acid
trichloromethyl chloroformate
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 8h; | 100% |
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 8h; | 100% |
4-isopropylmandelic acid
trichloromethyl chloroformate
5-(4-isopropyl-phenyl)-[1,3]dioxolane-2,4-dione
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 8h; | 100% |
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 8h; | 100% |
trichloromethyl chloroformate
Conditions | Yield |
---|---|
With pyrographite In tetrahydrofuran at 20℃; for 8h; | 100% |
trichloromethyl chloroformate
Conditions | Yield |
---|---|
With dmap; triethylamine In dichloromethane at 0℃; | 100% |
trichloromethyl chloroformate
Conditions | Yield |
---|---|
With dmap; triethylamine In dichloromethane at 0℃; | 100% |
[2-(3-chlorophenoxy)-1-ethyl]ethanol
trichloromethyl chloroformate
[2-(3-chlorophenoxy)-1-ethyl]ethyl chloroformate
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0 - 25℃; for 3h; | 100% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
4-(hydroxymethyl)-5-nitro-1,2,3,4-tetrahydronaphtalene
trichloromethyl chloroformate
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
2-(4-bromo-2-nitrophenyl)propan-1-ol
trichloromethyl chloroformate
C10H9BrClNO4
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
2-(4-chloro-2-nitrophenyl)propan-1-ol
trichloromethyl chloroformate
C10H9Cl2NO4
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
2-(4-iodo-2-nitrophenyl)propan-1-ol
trichloromethyl chloroformate
C10H9ClINO4
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran at 0℃; for 1h; | 100% |
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