hebei 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:633-35-2
Min.Order:1 Metric Ton
FOB Price: $1.0 / 3.0
Type:Manufacturers
inquiryAdvantage : LIDE PHARMACEUTICALS LTD. is a mid-small manufacturing-type enterprise, engaged in pharmaceutical intermediates of R&D, custom-made and production, and also involving trading chemicals for export. We have established the R&
Cas:633-35-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryOur Adwantage: 1.We have stock so we can delivery quickly at the very day when receive the payment. 2.Best price, first class service, high successful delivery rate. A discount would be given when you make a large order. 3.High quality gua
Cas:633-35-2
Min.Order:10 Gram
Negotiable
Type:Other
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:633-35-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryANDROSTA-1,4,6-TRIENE-3,17-DIONE CAS:633-35-2 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality or
Cas:633-35-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
Cas:633-35-2
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
Cas:633-35-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryA 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
Cas:633-35-2
Min.Order:4 Kilogram
Negotiable
Type:Lab/Research institutions
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
Cas:633-35-2
Min.Order:0 Metric Ton
Negotiable
Type:Other
inquiryWhy Choose Us: 1. Factory direct sales, so we can provide the competitive price and high quality product base on 8 years of production and R&D experience. 2. It is available in stock for quick shipment.Products could be packaged according to cu
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:633-35-2
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryOur Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an
Cas:633-35-2
Min.Order:0
Negotiable
Type:Trading Company
inquiryGMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
Cas:633-35-2
Min.Order:1 Milligram
Negotiable
Type:Trading Company
inquiryGOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation
We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
ISO/factory/goodqualityAppearance:off white Storage:Dry,cool place Package:drum Application:active pharmaceutical ingredients Transportation:by air/sea/express Port:shenzhen/shanghai
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
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
Cas:633-35-2
Min.Order:100 Gram
Negotiable
Type:Lab/Research institutions
inquiryR & 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 advantage:Our 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 Scient
Cas:633-35-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryJ&H CHEM is one of China's leading providers of integrated fine chemical services including offering, research and development, Custom manufacturing business, as well as other Value-added customer services, for diversified range products of chemicals
Cas:633-35-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
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 highly qualified in
Cas:633-35-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
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
Cas:633-35-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryFactory supply high purity low priceAppearance:solid or liquid Storage:sealed in cool and dry place Package:As customer's requested Application:Pharma Intermediate Transportation:by courier/air/sea Port:Any port in China
Cas:633-35-2
Min.Order:0
Negotiable
Type:Trading Company
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Cas:633-35-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryhight degree of purityAppearance:COA mentioned Storage:COA mentioned Package:Standard or custom package Application:hight degree of purity Transportation:Express/Sea/Air Port:Any port in China
Conditions | Yield |
---|---|
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,4-dioxane for 24h; Heating; | 61% |
With 2,3-dicyano-5,6-dichloro-p-benzoquinone In 1,4-dioxane for 24h; Heating; | 45% |
Conditions | Yield |
---|---|
With sodium periodate |
6β-bromo-androsta-1,4-diene-3,17-dione
1,4,6-androstatriene-3,17-dione
Conditions | Yield |
---|---|
With 2,4,6-trimethyl-pyridine |
1,4,6-androstatriene-3,17-dione
Conditions | Yield |
---|---|
With 2,4,6-trimethyl-pyridine |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: dibenzoyl peroxide; CCl4; N-bromo-succinimide 2: 2,4,6-trimethyl-pyridine View Scheme |
Conditions | Yield |
---|---|
copper(I) bromide In 1,4-dioxane; water; toluene | 99% |
With copper(I) bromide In tetrahydrofuran for 1h; Ambient temperature; | 89% |
Conditions | Yield |
---|---|
With sodium carbonate In methanol; water at 20 - 45℃; Reagent/catalyst; Solvent; | 98.6% |
With sodium carbonate In water at 20 - 45℃; Reagent/catalyst; Solvent; | 98.6% |
With sodium carbonate In water at 40 - 45℃; Solvent; Reagent/catalyst; | 98.6% |
Conditions | Yield |
---|---|
With dihydrogen peroxide; sodium hydroxide In methanol at 20℃; for 12h; | 86% |
With sodium hydroxide; dihydrogen peroxide In methanol at 20℃; for 22h; | 78% |
1,4,6-androstatriene-3,17-dione
1,4,6-androstatrien-3β,17β-diol
Conditions | Yield |
---|---|
With sodium tetrahydroborate In ethanol at 20℃; for 24h; | 83% |
With sodium tetrahydroborate In ethanol at 20℃; | 63% |
1,4,6-androstatriene-3,17-dione
Conditions | Yield |
---|---|
With sodium hydroxide In water; acetone | 73% |
1,4,6-androstatriene-3,17-dione
(E)-6-hydroxyiminoandrosta-1,4-diene-3,17-dione
Conditions | Yield |
---|---|
With triethylsilane; tert.-butylnitrite; cobalt(II) 5,10,15,20-tetraphenylporphyrin In dichloromethane; isopropyl alcohol for 48h; Ambient temperature; | 68% |
1,4,6-androstatriene-3,17-dione
A
6-dehydrotestosterone
B
1,4,6-Androstatrien-17beta-ol-3-one
Conditions | Yield |
---|---|
With lithium triethylborohydride In tetrahydrofuran at 20℃; for 2h; | A 65% B 13% |
With lithium aluminium tetrahydride In tetrahydrofuran at 20℃; for 1h; | A 16% B 53% |
1,4,6-androstatriene-3,17-dione
6α,7α-epoxy-4,6-androstadiene-3,17-dione
Conditions | Yield |
---|---|
With 3-chloro-benzenecarboperoxoic acid In chloroform at 20℃; | 64% |
With 3-chloro-benzenecarboperoxoic acid In chloroform at 60℃; for 6h; Inert atmosphere; | 61% |
1,4,6-androstatriene-3,17-dione
Conditions | Yield |
---|---|
With L-Selectride In tetrahydrofuran at 20℃; for 18h; | 63% |
Conditions | Yield |
---|---|
With hydrogenchloride; acetic acid for 20h; Ambient temperature; | A 20% B 45% |
Conditions | Yield |
---|---|
With sodium In 1,4-dioxane at 80℃; for 18h; | A 25% B 35% C 10% |
hypofluorous acid trifluoromethyl ester
1,4,6-androstatriene-3,17-dione
A
6α,7α-difluoroandrosta-1,4-diene-3,17-dione
B
7α-fluoro-6α-trifluoromethoxyandrosta-1,4-diene-3,17-dione
Conditions | Yield |
---|---|
With calcium oxide In dichloromethane at -20℃; | A 15% B 30% |
1,4,6-androstatriene-3,17-dione
A
6α,7α-difluoroandrosta-1,4-diene-3,17-dione
B
7α-fluoro-6α-trifluoromethoxyandrosta-1,4-diene-3,17-dione
Conditions | Yield |
---|---|
With trichlorofluoromethane; calcium oxide In dichloromethane at -20℃; | A 15% B 30% |
1,4,6-androstatriene-3,17-dione
4-aminotiophenol
A
7α-(4'-amino)phenylthio-1,4-androstadiene-3,17-dione
B
(1S,8S,9S,10R,13S,14S)-1-(4-Amino-phenylsulfanyl)-10,13-dimethyl-1,8,9,10,11,12,13,14,15,16-decahydro-2H-cyclopenta[a]phenanthrene-3,17-dione
Conditions | Yield |
---|---|
With hydrogenchloride; acetic acid for 24h; Ambient temperature; | A 15% B 30% |
Conditions | Yield |
---|---|
With hydrogenchloride; acetic acid for 24h; Ambient temperature; | 27% |
Conditions | Yield |
---|---|
With hydrogenchloride; acetic acid for 15h; Ambient temperature; | 15% |
thioacetic acid
1,4,6-androstatriene-3,17-dione
1α-acetylsulfanyl-androsta-4,6-diene-3,17-dione
Conditions | Yield |
---|---|
Einwirkung von UV-Licht; | |
im UV-Licht; |
Conditions | Yield |
---|---|
With glass at 600℃; |
1,4,6-androstatriene-3,17-dione
acetic anhydride
3-acetoxy-1-methyl-estra-1,3,5(10),6-tetraen-17-one
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid | |
With toluene-4-sulfonic acid; acetic acid |
1,4,6-androstatriene-3,17-dione
acetic anhydride
1-Methyl-3-acetoxy-7-acetyl-Δ1.3.5(10).6-oestratetraen-17-on
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid; acetic acid |
1,4,6-androstatriene-3,17-dione
Conditions | Yield |
---|---|
With hydrogen fluoride; antimony pentafluoride at -50℃; |
1,4,6-androstatriene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 78 percent / NaOH; H2O2 / methanol / 22 h / 20 °C 2: 73 percent / lithium / 18 h / 20 °C View Scheme |
1,4,6-androstatriene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 78 percent / NaOH; H2O2 / methanol / 22 h / 20 °C 2: 69 percent / NaBH4 / ethanol / 20 °C View Scheme |
1,4,6-androstatriene-3,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 63 percent / NaBH4 / ethanol / 20 °C 2: 64 percent / m-chloroperoxybenzoic acid / CHCl3 / 20 °C View Scheme |
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