With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
Cas:2283-82-1
Min.Order:1 Kilogram
FOB Price: $50.0 / 80.0
Type:Trading Company
inquiry1.In No Less 10 years exporting experience. you 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 Specializ
Cas:2283-82-1
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:2283-82-1
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:2283-82-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryHangzhou 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:2283-82-1
Min.Order:0 Metric Ton
Negotiable
Type:Lab/Research institutions
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,
1.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:2283-82-1
Min.Order:1 Metric Ton
FOB Price: $7.0 / 8.0
Type:Trading Company
inquiry1.Our services:A.Supply sampleB.The packing also can be according the customers` requirmentC.Any inquiries will be replied within 24 hoursD.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate.
Cas:2283-82-1
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:2283-82-1
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:2283-82-1
Min.Order:0
Negotiable
Type:Trading Company
inquirySupply top quality products with a reasonable price Application:api
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Hangzhou ZeErRui Chemical Co., Ltd. located in Lingang industrial areas, our plant covers an area of 6000 square meters.ZeErRui dedicated to the development, production and marketing of chemicals. We have earned ourselves a good reputation at home an
Cas:2283-82-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Henan Sunlake Enterprise Corporation Our Advantages 1, Any inquiry about ch
Hebei Shengang Trading Co., Ltd is an experienced enterprise of supplier various kind pharmaceutical intermediates. Our R&D center also offer custom synthesis services. 1.we have rich experience in this field. 2.we can provide competi
Cas:2283-82-1
Min.Order:10 Gram
Negotiable
Type:Trading Company
inquiryPrice, service, company and transport advantage: 1. Best service, place of origin China, high quality, and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). 3. It's customers' right
Dehydroandrosterone manufactureAppearance:Detailed see specifications Storage:keep in dry and cool condition Package:25kg or according to cutomer's demand Application:Chemical research/pharma intermediate Transportation:By Sea,by Air,By courier like
Our company provides the best service for our customers. Under the premise of ensuring quality and delivery date, give customers the best price. The company is more willing to meet our customers. If you want to visit our factories and warehouses, we
Dehydroandrosterone CAS NO.2283-82-1Appearance:White powder Storage:cool,dry place Package:According to customer requirements for packaging Application:It is a new type of hormonal premix drugs, it is different pharmacological effects of the time a m
Cas:2283-82-1
Min.Order:0
Negotiable
Type:Trading Company
inquiryHigh purity Application:Pharmaceutical intermediates, Material synthesis and analyzing the expectant ingredients
(3R,8R,9S,10R,13S,14S)-10,13-dimethyl-17-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate
3α-hydroxy-androst-5-en-17-one
Conditions | Yield |
---|---|
With methanol; sodium hydroxide at 40℃; for 4h; Inert atmosphere; | 95.8% |
With potassium hydroxide In methanol for 1h; Heating; | 1.9 g |
17,17-ethylenedioxy-androst-5-ene-3α-ol
3α-hydroxy-androst-5-en-17-one
Conditions | Yield |
---|---|
With hydrogenchloride | 80% |
With hydrogenchloride In ethanol; water for 5h; Reflux; |
dehydroepiandrosterone p-nitrobenzoate
3α-hydroxy-androst-5-en-17-one
Conditions | Yield |
---|---|
With potassium hydroxide In methanol; water for 1h; Sonication; | 72% |
With NaOH In tetrahydrofuran; methanol; water |
5-androstenedione
A
dehydroepiandrosterone
B
3α-hydroxy-androst-5-en-17-one
Conditions | Yield |
---|---|
With ethanol; nickel Hydrogenation; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 3.2 g / various solvent(s) / 4 h / 160 °C 2: 1.9 g / aq. KOH / methanol / 1 h / Heating View Scheme | |
Multi-step reaction with 2 steps 1: 3.2 g / tetra-n-butylammonium acetate / various solvent(s) / 4 h / 160 °C 2: 1.9 g / aq. KOH / methanol / 1 h / Heating View Scheme |
3β-acetoxy-5α,6α-epoxy-androst-17-one, ethylene ketal
3α-hydroxy-androst-5-en-17-one
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: lithium aluminium tetrahydride 2: pyridine 3: N,N-dimethyl-aniline 4: potassium hydroxide 5: hydrogenchloride View Scheme | |
Multi-step reaction with 5 steps 1: lithium aluminium tetrahydride / tetrahydrofuran / 3 h / 35 °C / Reflux 2: pyridine / dichloromethane / 16 h / 10 - 20 °C / Cooling with ice 3: N,N-dimethyl-aniline / chloroform / 5 h / Reflux 4: potassium hydroxide; water / methanol / 1 h / Reflux 5: hydrogenchloride / ethanol; water / 5 h / Reflux View Scheme |
3α-hydroxy-androst-5-en-17-one
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: pyridine 2: N,N-dimethyl-aniline 3: potassium hydroxide 4: hydrogenchloride View Scheme | |
Multi-step reaction with 4 steps 1: pyridine / dichloromethane / 16 h / 10 - 20 °C / Cooling with ice 2: N,N-dimethyl-aniline / chloroform / 5 h / Reflux 3: potassium hydroxide; water / methanol / 1 h / Reflux 4: hydrogenchloride / ethanol; water / 5 h / Reflux View Scheme |
17,17-ethylenedioxy-3β-methanesulfonyloxy-androstane-5α-ol
3α-hydroxy-androst-5-en-17-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: N,N-dimethyl-aniline 2: potassium hydroxide 3: hydrogenchloride View Scheme | |
Multi-step reaction with 3 steps 1: N,N-dimethyl-aniline / chloroform / 5 h / Reflux 2: potassium hydroxide; water / methanol / 1 h / Reflux 3: hydrogenchloride / ethanol; water / 5 h / Reflux View Scheme |
5-androsten-3α-ol-17-one acetate 17-ethylene ketal
3α-hydroxy-androst-5-en-17-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: potassium hydroxide 2: hydrogenchloride View Scheme | |
Multi-step reaction with 2 steps 1: potassium hydroxide; water / methanol / 1 h / Reflux 2: hydrogenchloride / ethanol; water / 5 h / Reflux View Scheme |
3α-hydroxy-androst-5-en-17-one
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: p-toluenesulfonic acid monohydrate 2: 3-chloro-benzenecarboperoxoic acid 3: lithium aluminium tetrahydride 4: pyridine 5: N,N-dimethyl-aniline 6: potassium hydroxide 7: hydrogenchloride View Scheme | |
Multi-step reaction with 7 steps 1: orthoformic acid triethyl ester / toluene-4-sulfonic acid / 3 h / Inert atmosphere; Reflux 2: 3-chloro-benzenecarboperoxoic acid / dichloromethane / -5 - 20 °C 3: lithium aluminium tetrahydride / tetrahydrofuran / 3 h / 35 °C / Reflux 4: pyridine / dichloromethane / 16 h / 10 - 20 °C / Cooling with ice 5: N,N-dimethyl-aniline / chloroform / 5 h / Reflux 6: potassium hydroxide; water / methanol / 1 h / Reflux 7: hydrogenchloride / ethanol; water / 5 h / Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 3-chloro-benzenecarboperoxoic acid 2: lithium aluminium tetrahydride 3: pyridine 4: N,N-dimethyl-aniline 5: potassium hydroxide 6: hydrogenchloride View Scheme | |
Multi-step reaction with 6 steps 1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / -5 - 20 °C 2: lithium aluminium tetrahydride / tetrahydrofuran / 3 h / 35 °C / Reflux 3: pyridine / dichloromethane / 16 h / 10 - 20 °C / Cooling with ice 4: N,N-dimethyl-aniline / chloroform / 5 h / Reflux 5: potassium hydroxide; water / methanol / 1 h / Reflux 6: hydrogenchloride / ethanol; water / 5 h / Reflux View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: potassium tert-butylate / tert-butyl alcohol / 1 h / 30 - 35 °C / Inert atmosphere 1.3: 65 h / 45 °C / pH 6.5 / Enzymatic reaction 2.1: D-glucose; NAD; glucose dehydrogenase (CDX-901)_; ketoreductase from Sphingomonas wittichii; potassium carbonate / ethyl acetate; aq. phosphate buffer / 21 h / 32.5 °C / pH 6.3 - 6.5 / Inert atmosphere; Enzymatic reaction 3.1: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 5 - 20 °C / Inert atmosphere 4.1: potassium hydroxide / water; methanol / 1 h / Sonication View Scheme | |
Multi-step reaction with 4 steps 1: potassium tert-butylate / tert-butyl alcohol / 1 h / 30 - 35 °C / Inert atmosphere 2: D-glucose; NAD; glucose dehydrogenase (CDX-901)_; ketoreductase from Sphingomonas wittichii; potassium carbonate / ethyl acetate; aq. phosphate buffer / 21 h / 32.5 °C / pH 6.3 - 6.5 / Inert atmosphere; Enzymatic reaction 3: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 5 - 20 °C / Inert atmosphere 4: potassium hydroxide / water; methanol / 1 h / Sonication View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 5 - 20 °C / Inert atmosphere 2: potassium hydroxide / water; methanol / 1 h / Sonication View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: D-glucose; NAD; glucose dehydrogenase (CDX-901)_; ketoreductase from Sphingomonas wittichii; potassium carbonate / ethyl acetate; aq. phosphate buffer / 21 h / 32.5 °C / pH 6.3 - 6.5 / Inert atmosphere; Enzymatic reaction 2: triphenylphosphine; di-isopropyl azodicarboxylate / tetrahydrofuran / 5 - 20 °C / Inert atmosphere 3: potassium hydroxide / water; methanol / 1 h / Sonication View Scheme |
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