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:64907-22-8
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:64907-22-8
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
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:64907-22-8
Min.Order:1 Kilogram
FOB Price: $2.0
Type:Lab/Research institutions
inquiryWe 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:64907-22-8
Min.Order:1 Metric Ton
FOB Price: $1.0
Type:Trading Company
inquiryOur own factory produces direct sales with absolute price advantage Application:Pharmaceutical industry Transportation:By sea Port:Shanghai/tianjin
Cas:64907-22-8
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryBOC Sciences provides a wide range of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecule and chiral compounds.Appearanc
good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:1mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any port
home-produced Application:medicine
Cas:64907-22-8
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
1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
Cas:64907-22-8
Min.Order:10 Milligram
Negotiable
Type:Lab/Research institutions
inquirycholest-5-ene-3β,7α,25-triol 3β,25-dibenzoate
[3H]-7alpha, 25-Dihydroxycholesterol
Conditions | Yield |
---|---|
With methanol; potassium hydroxide for 4h; Reflux; Inert atmosphere; | 81% |
With potassium hydroxide In methanol for 1h; Heating; | 51% |
25-hydroxychlolesterol
[3H]-7alpha, 25-Dihydroxycholesterol
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 98 percent / pyridine / 3 h / 20 °C 2: 87 percent / PCC; 3A molecular sieves / benzene / 24 h / Heating 3: 71 percent / L-Selectride / tetrahydrofuran / 5 h / -78 °C 4: 51 percent / KOH / methanol / 1 h / Heating View Scheme | |
Multi-step reaction with 4 steps 1.1: pyridine / dichloromethane / 42 h / 20 °C / Inert atmosphere 2.1: tert.-butylhydroperoxide / ethyl acetate / 0.5 h / Molecular sieve; Inert atmosphere 2.2: 48 h / 20 °C / Molecular sieve; Inert atmosphere 3.1: L-Selectride / tetrahydrofuran / 3 h / -78 °C / Inert atmosphere 4.1: potassium hydroxide; methanol / 4 h / Reflux; Inert atmosphere View Scheme |
cholest-5-ene-3β,25-diol 3β,25-dibenzoate
[3H]-7alpha, 25-Dihydroxycholesterol
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 87 percent / PCC; 3A molecular sieves / benzene / 24 h / Heating 2: 71 percent / L-Selectride / tetrahydrofuran / 5 h / -78 °C 3: 51 percent / KOH / methanol / 1 h / Heating View Scheme | |
Multi-step reaction with 3 steps 1.1: tert.-butylhydroperoxide / ethyl acetate / 0.5 h / Molecular sieve; Inert atmosphere 1.2: 48 h / 20 °C / Molecular sieve; Inert atmosphere 2.1: L-Selectride / tetrahydrofuran / 3 h / -78 °C / Inert atmosphere 3.1: potassium hydroxide; methanol / 4 h / Reflux; Inert atmosphere View Scheme |
3β,25-dihydroxycholest-5-en-7-one 3β,25-dibenzoate
[3H]-7alpha, 25-Dihydroxycholesterol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 71 percent / L-Selectride / tetrahydrofuran / 5 h / -78 °C 2: 51 percent / KOH / methanol / 1 h / Heating View Scheme | |
Multi-step reaction with 2 steps 1: L-Selectride / tetrahydrofuran / 3 h / -78 °C / Inert atmosphere 2: potassium hydroxide; methanol / 4 h / Reflux; Inert atmosphere View Scheme |
[3H]-7alpha, 25-Dihydroxycholesterol
7α,25-dihydroxy-4-cholesten-3-one
Conditions | Yield |
---|---|
With recombinant Brevibacterium cholesterol oxidase In phosphate buffer; isopropyl alcohol at 25℃; for 12h; pH=7; |
[3H]-7alpha, 25-Dihydroxycholesterol
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: recombinant Brevibacterium cholesterol oxidase / propan-2-ol; aq. phosphate buffer / 12 h / 25 °C / pH 7 2: methanol; H2O; acetic acid / 20 °C View Scheme |
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View