DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe
Cas:5119-48-2
Min.Order:1 Kilogram
FOB Price: $3.0
Type:Lab/Research institutions
inquiryCome From Nature / Building Healthy Life Beauty In Your Face / Nourishment Your Taste Bud. Professional Factory: We has a complete production and operating system, with an annual output capacity of 2000 tons. It can produce variety of con
Cas:5119-48-2
Min.Order:1 Kilogram
FOB Price: $9.0 / 67.0
Type:Manufacturers
inquiry17-year experience in Phytochemicals Each product has passed very strict tests (NMR\MS\HPLC) Agents in 13 countries Certified by ISO 9001:2008 quality management system Leader Supplier of Botanical Reference Materials in China
About Product Details
Cas:5119-48-2
Min.Order:1 Gram
FOB Price: $1.0 / 2.0
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:5119-48-2
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryWITHAFERIN A CAS:5119-48-2 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:5119-48-2
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:5119-48-2
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:5119-48-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryXi'an Yinherb Bio-Tech Co., Ltd was founded in 2009, We have more than 10 experienced doctors and scientists and professional managers, specializing in Nootropics, Sarms and Peptides researching and developing, and become the lead
Cas:5119-48-2
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiry1.high purity 2.consistent quality 3.competitive price 4.fast shipping Binbo Biological Products Co. Ltd., is a professional high-tech enterprise which engaged in Biological products and raw materials. Binbo is engaged in R&D with perfect eq
Cas:5119-48-2
Min.Order:1 Kilogram
FOB Price: $1.0 / 100.0
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:5119-48-2
Min.Order:10 Gram
FOB Price: $100.0
Type:Lab/Research institutions
inquiryGood price, high purity, mature production technology, accept custom synthesis per customer's requirements Package:As per Customer‘ requirements Application:Pharmaceutical intermediate
Why is SINOWAY:1) Specialized in pharmaceutical and healthcare industrial since 19872) ISO 9001:2015 & SGS audited supplier . 3) Accept various payment terms : T.T 30-60 days.4) We have warehouse in USA with quickly shipment . Application:Herbal extr
Cas:5119-48-2
Min.Order:0
Negotiable
Type:Trading Company
inquiryAcmec is a leading manufacturer and supplier of biochemical reagents and life science products. We have over 40,000 items in stock (real-time inventory) and offer discounted prices to registered members of the online store ( www.acmec.com.cn ) Appea
Cas:5119-48-2
Min.Order:1 bottle
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
ADVANTAGE:1. More than 3,000 Chinese medicine reference substances / standard products available from stock, issued on the same day, multiple cities can be delivered the next day2. The products are provided with COA, HPLC, NMR, quality assurance, pac
1.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:5119-48-2
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
Ansciep 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:5119-48-2
Min.Order:0
Negotiable
Type:Lab/Research institutions
inquiryAppearance: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
Withaferine A cas 5119-48-2Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
good quality, competitive price, thoughtful after sale serviceAppearance:white powder Storage:Keep it in dry,shady and cool place Package:5mg Application:Pharma;Industry;Agricultural;chemical reaserch Transportation:by express or by sea Port:Any port
The factory supplies Application:manufacturing supplies
Cas:5119-48-2
Min.Order:0
Negotiable
Type:Trading Company
inquiry2,3-dihydro-3β-O-sulfate withaferin A
withaferin-A
Conditions | Yield |
---|---|
With pyridine; potassium carbonate at 90℃; for 1h; | 93% |
With carbon dioxide In dimethyl sulfoxide at 37℃; |
Conditions | Yield |
---|---|
With Acnistus breviflorus In water for 72h; | A 4.0 mg B 5.6 mg |
Conditions | Yield |
---|---|
With aluminum oxide In dichloromethane at 20℃; for 20h; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 24h; | 99% |
withaferin-A
Conditions | Yield |
---|---|
With palladium 10% on activated carbon; hydrogen; triethylamine In ethanol for 1h; | 98% |
withaferin-A
Conditions | Yield |
---|---|
With sodium hydroxide In tetrahydrofuran; water at 0 - 20℃; for 8h; | 98% |
Conditions | Yield |
---|---|
In methanol at 20℃; for 0.75h; Inert atmosphere; | 96% |
tert-butyldimethylsilyl chloride
withaferin-A
withaferin A 27-tert-butyldimethylsilyl ether
Conditions | Yield |
---|---|
With 1H-imidazole; dmap In dichloromethane at 20℃; for 3h; | 94% |
With 4-PP In N,N-dimethyl-formamide at 60℃; for 3h; | 90% |
With 1H-imidazole; dmap In dichloromethane at 20℃; for 2.5h; | 89% |
With dmap; triethylamine In dichloromethane at 20℃; for 12h; Reagent/catalyst; | |
With dmap; triethylamine In dichloromethane at 20℃; for 0.8h; | 5.6 g |
Conditions | Yield |
---|---|
With dmap; triethylamine In dichloromethane at 20℃; for 0.5h; | A 93% B 5% |
withaferin-A
Conditions | Yield |
---|---|
With iodine; triphenylphosphine In dichloromethane at 0 - 25℃; for 2h; | 93% |
Conditions | Yield |
---|---|
With boron trifluoride diethyl etherate In tetrahydrofuran at 0 - 20℃; for 0.75h; Inert atmosphere; | A 3% B 91% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction; | 85% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction; | 85% |
withaferin-A
Conditions | Yield |
---|---|
With cerium(III) chloride heptahydrate In tetrahydrofuran; acetonitrile for 18h; Inert atmosphere; Reflux; | 85% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction; | 84% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction; | 83% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction; | 82% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction; | 82% |
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 0 - 20℃; Inert atmosphere; | 82% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction; | 81% |
Conditions | Yield |
---|---|
In water at 20℃; for 40h; regioselective reaction; | 80% |
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction; | 78% |
withaferin-A
Conditions | Yield |
---|---|
With ammonium thiocyanate; 1,3,5-trichloro-2,4,6-triazine In tetrahydrofuran for 15h; Reflux; | 76% |
withaferin-A
Conditions | Yield |
---|---|
With iodine In chloroform at 20℃; for 1.5h; Cooling with ice; | 74% |
trimethylsilylazide
withaferin-A
2,3-dihydro,3-β-azido withaferin-A
Conditions | Yield |
---|---|
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction; | 73% |
acetic anhydride
withaferin-A
A
27-acetoxy-5β,6β-epoxy-4β-hydroxy-1-oxo-witha-2,24-dienolide
B
4,27-di-O-acetylwithaferin A
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 0℃; for 2.5h; | A 73% B 12% |
With pyridine at 25℃; for 2h; | A 19% B 72% |
N-Methylisatoic anhydride
withaferin-A
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; for 24h; | 73% |
acetic anhydride
withaferin-A
27-acetoxy-5β,6β-epoxy-4β-hydroxy-1-oxo-witha-2,24-dienolide
Conditions | Yield |
---|---|
With pyridine at 25℃; for 2h; | 72% |
Conditions | Yield |
---|---|
With dihydrogen peroxide; sodium hydroxide In methanol; dichloromethane at 20℃; for 0.0833333h; | A 69% B 27% |
Conditions | Yield |
---|---|
In methanol at 25℃; for 48h; | 66% |
Conditions | Yield |
---|---|
With aluminum oxide In dichloromethane at 20℃; for 20h; Inert atmosphere; | 66% |
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