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:516-38-1
Min.Order:1 Kilogram
FOB Price: $3.0
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 on.O
Cas:516-38-1
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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:516-38-1
Min.Order:1 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:516-38-1
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
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:516-38-1
Min.Order:10 Gram
FOB Price: $100.0
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
Cas:516-38-1
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryhight degree of purity Application:Fine chemical intermediates, used as the main raw material for he synthesis of various pesticides, medicines, surfactants, polymer monomers, Ond Ontifungal agents
Cas:516-38-1
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryPregnane-3,11,17,20,21-pentol,(3a,5b,11b,20S)- cas 516-38-1Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Cas:516-38-1
Min.Order:0
Negotiable
Type:Other
inquiryfactory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:10mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any por
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Changzhou Extraordinary Pharmatech co., LTD. As a leading chemical manufacturer and supplier in China.DAS authentication is passed.We can provide the popular precursor chemicals, we have our own strong R & D team, have our own laboratories and fa
Cas:516-38-1
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryHigh Quality Best Price Storage:Store in dry, dark and ventilated place Application:Chemical Synthesis Intermediate
Comprehensive range product line, COA with HPLC, MS and NMR spectra. Package:1mg Application:pharmaceutical industry, biotech industry, research institutions.
High purity Application:Pharmaceutical intermediates, Material synthesis and analyzing the expectant ingredients
Cas:516-38-1
Min.Order:0
Negotiable
Type:Trading Company
inquiry3α,20αF,21-triacetoxy-17-hydroxy-5β-pregnan-11-one
5β-pregnane-3α,11β,17α,20β,21-pentaol
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride |
20α-cortol 20,21-diacetate
5β-pregnane-3α,11β,17α,20β,21-pentaol
Conditions | Yield |
---|---|
saponification; |
methyl 20β-acetoxy-3α-tert-butyldimethylsilyloxy-17α-hydroxy-11-oxo-5β-pregnan-21-oate
5β-pregnane-3α,11β,17α,20β,21-pentaol
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 410 mg / LiAlH4 / diethyl ether / 1 h / Ambient temperature 2: 250 mg / pyridine / Ambient temperature 3: 100 mg / 50percent H2SO4 / acetone / 0.17 h / Ambient temperature 4: saponification View Scheme |
20α-cortol 3-tert-butyldimethylsilyl ether
5β-pregnane-3α,11β,17α,20β,21-pentaol
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 250 mg / pyridine / Ambient temperature 2: 100 mg / 50percent H2SO4 / acetone / 0.17 h / Ambient temperature 3: saponification View Scheme |
20α-cortol 3-tert-butyldimethylsilyl ether 20,21-diacetate
5β-pregnane-3α,11β,17α,20β,21-pentaol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 100 mg / 50percent H2SO4 / acetone / 0.17 h / Ambient temperature 2: saponification View Scheme |
5β-pregnane-3α,11β,17α,20β,21-pentaol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: potassium acetate; acetic acid 2: LiAlH4 View Scheme |
5β-pregnane-3α,11β,17α,20β,21-pentaol
5β-pregnane-3α,11β,17α,20β,21-pentaol 3,11,21-tris-DEHS-17,20-DES derivate
Conditions | Yield |
---|---|
In pyridine for 1h; Ambient temperature; |
Conditions | Yield |
---|---|
With pyridine; chloro-trimethyl-silane |
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