Shanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:1420-49-1
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
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:1420-49-1
Min.Order:1 Kilogram
FOB Price: $1.0 / 3.0
Type:Trading Company
inquiryOur advantages: 1. High quality and competitive price: 1) Standard: BP/USP/EP/ enterprise standard 2) All purity 鈮 9% 3) We are manufacturers and can provide high quality products at factory prices. 2. Fast and safe delivery 1) The package can
Cas:1420-49-1
Min.Order:1 Metric Ton
FOB Price: $5.0 / 10.0
Type:Trading Company
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:1420-49-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; Appearance:Powder Storage:Store in sealed containers at cool & dry plac
Cas:1420-49-1
Min.Order:100 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:1420-49-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryAndrosta-3,5-diene-7,17-dione CAS: 1420-49-1 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 org
Cas:1420-49-1
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:1420-49-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1.high quality: quality is life. quality is the most important element for all goods. we have a lab doing research in wuhan china. hplc and nmr is available if needed. 2.reasonable price: we provide high quality products wi
Cas:1420-49-1
Min.Order:10 Gram
Negotiable
Type:Lab/Research institutions
inquiryAndrosta-3,5-diene-7,17-dione CAS: 1420-49-1 Specification product name: androsta-3,5-diene-7,17-dione synonyms: 3,5-androstadiene-7,17-dione;androsta-3,5-diene-7,17-dione;androst-3,5-diene-7,17-dione;nsc 134910;androst-3,5-
Cas:1420-49-1
Min.Order:1 Kilogram
Negotiable
Type:Other
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:1420-49-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryAppearance:off-white to white solid Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for Synthesis API and Research Transportation:By Sea/Air/Courier Port:Qingdao
Cas:1420-49-1
Min.Order:1 Kilogram
FOB Price: $16.0 / 20.0
Type:Lab/Research institutions
inquiryOur service: 1.We have experience in exporting Pharmaceutical intermediates . 2.Professional packing with professional materials 3. We have products in stock, and we will deliver them soon when your PO arrived. Meanwhile we will give you the trackin
Cas:1420-49-1
Min.Order:10 Gram
Negotiable
Type:Other
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:1420-49-1
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
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:1420-49-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryZibo 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:1420-49-1
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryWe are one of a few suppliers that can offer custom synthesis service of this product We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committed to prov
Cas:1420-49-1
Min.Order:100 Gram
FOB Price: $100.0 / 2000.0
Type:Lab/Research institutions
inquiryProduct name: Androsta-3,5-Diene-7,17-Dione CAS No.:1420-49-1 Molecule Formula:C19H24O2 Molecule Weight:284.39 Purity: 98.0% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise Standard TESTING ITEMS
Cas:1420-49-1
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
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,
Cas:1420-49-1
Min.Order:1 Gram
Negotiable
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:1420-49-1
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:1420-49-1
Min.Order:1 Milligram
Negotiable
Type:Trading Company
inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
Cas:1420-49-1
Min.Order:1 Kilogram
FOB Price: $18.0 / 20.0
Type:Trading Company
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:1420-49-1
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryHigh quality, competitive price, fast delivery and first-class service we possesses have won the trust and praise of customers. Standard: BP/USP/EP The purity is equal or greater than 99%. As a supplier, we can provide high-quality produc
Cas:1420-49-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryShandong Mopai Biotechnology 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 chemicals. W
Cas:1420-49-1
Min.Order:1 Gram
Negotiable
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:1420-49-1
Min.Order:1 Metric Ton
FOB Price: $1.5
Type:Trading Company
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 customers
Cas:1420-49-1
Min.Order:1 Kilogram
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
Cas:1420-49-1
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryWe produce carbomer by our own factory,carbomer 940 is our best seller.It is used for cosmetic and medical.And we also become agent for lubrizol.Our carbomer 940 get high viscosity and good transparency.The price will depond on the market,surely supp
7-keto-DHEA
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
With perchloric acid In methanol | 86% |
Conditions | Yield |
---|---|
With perchloric acid In methanol; water at 20℃; for 12h; | 80% |
3,4-dihydro-2H-pyran
5-androstene-3β-ol-7,17-dione
A
3β-(2-tetrahydropyranyloxy)-androst-5-ene-7,17-dione
B
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
With pyridinium p-toluenesulfonate In dichloromethane at 20℃; for 3h; | A 68% B 0.150 g |
Conditions | Yield |
---|---|
With chromium(VI) oxide; acetic acid at 28 - 45℃; ueber mehrere Reaktionsstufen; |
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
With silver nitrate; dimethyl sulfoxide |
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
With hydrogenchloride; methanol |
7-oxo-dehydroepiandrosterone-3β-stearate
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
With perchloric acid In methanol at 65℃; for 0.7h; | 100 % Chromat. |
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
With perchloric acid In methanol at 65℃; for 1h; | 99.8 % Chromat. |
(3S,8R,9S,10R,13S,14S)-3-Chloro-10,13-dimethyl-1,2,3,4,7,8,9,10,11,12,13,14,15,16-tetradecahydro-cyclopenta[a]phenanthren-17-one
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: (microbiological transformation) 2: AgNO3, DMSO View Scheme |
3-acetoxyandrost-5-en-7,17-dione
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: methanol; water 2: perchloric acid / methanol View Scheme |
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
Stage #1: androsta-3,5-diene-7,17-dione With deuteriated sodium hydroxide In d(4)-methanol; water-d2 for 24h; Reflux; Stage #2: With hydrogen chloride In water-d2 | 50% |
Conditions | Yield |
---|---|
With hydrogenchloride; C52H52ClFeN24O2 In water; acetonitrile at 20℃; for 12h; Schlenk technique; Irradiation; | 45% |
androsta-3,5-diene-7,17-dione
A
3α,4α-epoxyandrost-5-ene-7,17-dione
Conditions | Yield |
---|---|
With potassium permanganate; copper(I) sulfate In dichloromethane; water; tert-butyl alcohol at 20℃; Oxidation; | A 30% B 20% |
Conditions | Yield |
---|---|
With 2-(2-(1,3-dioxo-6-(piperidin-1-yl)-1H-benzo[de]isoquinolin-2(3H)-yl)ethoxy)ethyl acetate In acetonitrile at 20℃; for 36h; Schlenk technique; Irradiation; | 30% |
androsta-3,5-diene-7,17-dione
androsta-3,5-diene-7,17-dione
3α,4α-epoxyandrost-5-ene-7,17-dione
Conditions | Yield |
---|---|
With 3-chloro-benzenecarboperoxoic acid In chloroform | 850 mg |
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 850 mg / m-chloroperbenzoic acid / CHCl3 2: 590 mg / aq. HCl / CHCl3 / Ambient temperature 3: pyridine 4: 150 mg / collidine / 4 h / Heating View Scheme |
androsta-3,5-diene-7,17-dione
4β-chloro-3α-hydroxyandrost-5-ene-7,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 850 mg / m-chloroperbenzoic acid / CHCl3 2: 590 mg / aq. HCl / CHCl3 / Ambient temperature View Scheme |
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 850 mg / m-chloroperbenzoic acid / CHCl3 2: 590 mg / aq. HCl / CHCl3 / Ambient temperature 3: pyridine View Scheme |
androsta-3,5-diene-7,17-dione
Conditions | Yield |
---|---|
With copper(I) bromide In tetrahydrofuran at 20℃; for 2h; Inert atmosphere; optical yield given as %de; stereoselective reaction; |
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