Hello, 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 email in time prod
Cas:3764-87-2
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:3764-87-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryDayangchem'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:3764-87-2
Min.Order:1 Kilogram
FOB Price: $3.0
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:3764-87-2
Min.Order:1
Negotiable
Type:Other
inquiryTrestolone Specification The Trestolone with the cas number 3764-87-2 is also called 17b-Hydroxy-7a-methylestr-4-en-3-one. The systematic name is (7alpha)-17-hydroxy-7-methylestr-4-en-3-one. Its molecular formula is C19H28O2. It is androge
1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
Cas:3764-87-2
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryChinese Name: Trotolone English Name: Trestolone English alias: Trestolone CAS No. 3764-87-2 Molecular formula: C19H28O2 Molecular weight: 288.4244 Molecular structure: tratolone 3764-87-2 Dens
Cas:3764-87-2
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
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:3764-87-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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
Cas:3764-87-2
Min.Order:1 Metric Ton
Negotiable
Type:Lab/Research institutions
inquiryWith 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
WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:3764-87-2
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
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:3764-87-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryTrestolone CAS:3764-87-2 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 organic intermediates,
Cas:3764-87-2
Min.Order:1 Gram
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 with competi
Cas:3764-87-2
Min.Order:10 Gram
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:3764-87-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryWe have overseas warehouses in California, New Laredo Mexico, Vancouver Canada, Amsterdam Netherlands, and Melbourne Australia. Overseas warehouses can provide some of the best-selling products. We look forward to the cooperation of local powerful
Cas:3764-87-2
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryVapor Pressure:1.44E-09mmHg at 25°C Melting Point:145-146 °C Refractive Index:1.557 Boiling Point:439.4 °C at 760 mmHg PKA:15.06±0.60(Predicted) Flash Point:187.3°C PSA:37.30000 Density:1.119 g/cm3 LogP:3.7351
Cas:3764-87-2
Min.Order:1 Gram
FOB Price: $4.0 / 6.0
Type:Trading Company
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
Our 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
GMP 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,
factory?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
Zhenyu 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:3764-87-2
Min.Order:1 Kilogram
FOB Price: $2.0
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
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
GOLDEN 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
1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
Cas:3764-87-2
Min.Order:0
Negotiable
Type:Trading Company
inquiryLower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
Cas:3764-87-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryhigh 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
J&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
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With water; sulfuric acid In acetone at 20℃; for 48h; | 85% |
Conditions | Yield |
---|---|
With water; potassium hydroxide In methanol; toluene at 40℃; for 2h; Inert atmosphere; | A 3% B 60.5% |
Conditions | Yield |
---|---|
Stage #1: 7alpha-Methyl-19-nortestosterone acetate With methanol; potassium hydroxide for 3 - 4h; Stage #2: With citric acid pH=6; |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: perchloric acid / ethyl acetate; water / 8 h / 18 °C / Inert atmosphere 2.1: N-Bromosuccinimide / water; N,N-dimethyl-formamide / 1.17 h / 0 - 7 °C / Inert atmosphere 2.2: 1.58 h / 110 °C / Inert atmosphere 3.1: copper(l) iodide / tetrahydrofuran; Dimethyl ether / 0.5 h / 0 - 10 °C / Inert atmosphere 4.1: potassium hydroxide; water / methanol; toluene / 2 h / 40 °C / Inert atmosphere View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: N-Bromosuccinimide / water; N,N-dimethyl-formamide / 1.17 h / 0 - 7 °C / Inert atmosphere 1.2: 1.58 h / 110 °C / Inert atmosphere 2.1: copper(l) iodide / tetrahydrofuran; Dimethyl ether / 0.5 h / 0 - 10 °C / Inert atmosphere 3.1: potassium hydroxide; water / methanol; toluene / 2 h / 40 °C / Inert atmosphere View Scheme |
7α-methyl-19-nortestosterone
ethylene glycol
7α-methyl-3,3-(ethylenedioxy)-5(10)-estren-7-ol
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid; orthoformic acid triethyl ester In benzene at 72℃; for 1.5h; |
7α-methyl-19-nortestosterone
ethylene glycol
A
7α-methyl-3,3-(ethylenedioxy)-5(10)-estren-7-ol
Conditions | Yield |
---|---|
With toluene-4-sulfonic acid In benzene for 43h; Heating; Title compound not separated from byproducts; |
7α-methyl-19-nortestosterone
ethylene glycol
A
7α-methyl-3,3-(ethylenedioxy)-5(10)-estren-17-one
Conditions | Yield |
---|---|
With sodium acetate; toluene-4-sulfonic acid; pyridinium chlorochromate 1.) benzene, reflux, 43 h, 2.) CH2Cl2, RT, 5.5 h; Yield given. Multistep reaction; | |
With sodium acetate; toluene-4-sulfonic acid; pyridinium chlorochromate 1.) benzene, reflux, 43 h, 2.) CH2Cl2, RT, 5.5 h; Yield given. Multistep reaction. Title compound not separated from byproducts; |
7α-methyl-19-nortestosterone
ethylene glycol
lithium acetylide
7α-methyl-17α-ethinyl-17β-hydroxy-4-estren-3-one
Conditions | Yield |
---|---|
Multistep reaction; |
7α-methyl-19-nortestosterone
ethylene glycol
lithium acetylide
A
7α-methylnorethynodrel ethylene ketal
Conditions | Yield |
---|---|
With sodium acetate; toluene-4-sulfonic acid; ethylenediamine; pyridinium chlorochromate Multistep reaction. Title compound not separated from byproducts; |
Conditions | Yield |
---|---|
(i) THF, Et2O, (ii) aq. HCl, acetone; Multistep reaction; |
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
(i) LiAlH4, THF, (ii) aq. HCl, acetone; Multistep reaction; |
Conditions | Yield |
---|---|
(i) THF, Et2O, (ii) aq. HCl, acetone; Multistep reaction; |
Conditions | Yield |
---|---|
With pyridine at 20℃; |
Conditions | Yield |
---|---|
With pyridine at 20℃; |
Conditions | Yield |
---|---|
With pyridine at 20℃; |
Conditions | Yield |
---|---|
With pyridine at 20℃; |
Conditions | Yield |
---|---|
With pyridine at 20℃; |
undec-10-enoyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
(E)-dec-2-enoyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
trans-chrotonyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
Conditions | Yield |
---|---|
With pyridine at 20℃; |
pent-4-enoyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
Conditions | Yield |
---|---|
With pyridine at 20℃; |
undecanoyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; | |
With sulfuric acid In ethyl acetate |
heptadecanoyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
Conditions | Yield |
---|---|
With pyridine at 20℃; |
Benzyloxyacetyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
4-heptylbenzoyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
p-ethylbenzoyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
4-propylbenzoyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
4-butylbenzoyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
4-pentylbenzoyl chloride
7α-methyl-19-nortestosterone
Conditions | Yield |
---|---|
With pyridine at 20℃; |
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