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Dayang Chem (Hangzhou) Co.,Ltd.

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

Withaferine A

Cas:5119-48-2

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Xi'an Quanao Biotech Co., Ltd.

Come 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

Natural Ashwagandha Extract powder Withanolides 5% for liver health

Cas:5119-48-2

Min.Order:1 Kilogram

FOB Price: $9.0 / 67.0

Type:Manufacturers

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shanghai Tauto Biotech Co., Ltd

17-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

Withaferin A

Cas:5119-48-2

Min.Order:10 Milligram

Negotiable

Type:Manufacturers

inquiry

Leader Biochemical Group

About Product Details

China Biggest factory Supply High Quality WITHAFERIN A CAS 5119-48-2

Cas:5119-48-2

Min.Order:1 Gram

FOB Price: $1.0 / 2.0

Type:Lab/Research institutions

inquiry

Shanghai Upbio Tech Co.,Ltd

1.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

Ergosta-2,24-dien-26-oicacid, 5,6-epoxy-4,22,27-trihydroxy-1-oxo-, d-lactone, (4b,5b,6b,22R)-

Cas:5119-48-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

WITHAFERIN 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

WITHAFERIN A CAS:5119-48-2

Cas:5119-48-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

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 emai

Ergosta-2,24-dien-26-oicacid, 5,6-epoxy-4,22,27-trihydroxy-1-oxo-, d-lactone, (4b,5b,6b,22R)-

Cas:5119-48-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan 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

Ergosta-2,24-dien-26-oicacid, 5,6-epoxy-4,22,27-trihydroxy-1-oxo-, d-lactone, (4b,5b,6b,22R)-

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xi'an Yinherb Bio-Tech Co., Ltd.

Xi'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

Natural Ashwagandha Extract with 1.5%- 5% Withanolides

Cas:5119-48-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Binbo Biological Co., Ltd

1.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

Natural Withaferin A 99%

Cas:5119-48-2

Min.Order:1 Kilogram

FOB Price: $1.0 / 100.0

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

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

Ashwagandha Extract

Cas:5119-48-2

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Senova Technology Company Limited

Good price, high purity, mature production technology, accept custom synthesis per customer's requirements Package:As per Customer‘ requirements Application:Pharmaceutical intermediate

Withaferin A

Cas:5119-48-2

Min.Order:0 Metric Ton

Negotiable

Type:Trading Company

inquiry

Sinoway Industrial Co., Ltd.

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

Shanghai Acmec Biochemical Technology Co., Ltd.

Acmec 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

Acmec Withaferin A W74701 25mg

Cas:5119-48-2

Min.Order:1 bottle

Negotiable

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

high 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

Withaferin A

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Hangzhou J&H Chemical Co., Ltd.

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

WITHAFERIN A

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chengdu Lemeitian Pharmaceutical Technology Co,. Ltd

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

Withaferin A

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

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.

Ergosta-2,24-dien-26-oicacid, 5,6-epoxy-4,22,27-trihydroxy-1-oxo-, d-lactone, (4b,5b,6b,22R)-

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

WITHAFERIN A

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

BOC Sciences

BOC 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

WITHAFERIN A

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Antimex Chemical Limied

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

Ergosta-2,24-dien-26-oicacid, 5,6-epoxy-4,22,27-trihydroxy-1-oxo-, d-lactone, (4b,5b,6b,22R)-

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Guangdong Juda Chemical Industrial Co.,Limited

Appearance: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

WITHAFERIN A CAS No.5119-48-2

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

DB BIOTECH CO., LTD

best seller Application:API

WITHAFERIN A

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Fandachem Co.,Ltd

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

Withaferine A cas 5119-48-2

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Other

inquiry

Henan Kanbei Chemical Co.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

WITHAFERIN A

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Chinqesen Biotechnology Co., Ltd.

Good Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen

5119-48-2

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Yuanye Bio-Technology Co., Ltd.

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

Withaferin A

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Shanghai Terui OP New Material Technology Co., Ltd.

The factory supplies Application:manufacturing supplies

Hebei Muhuang Technology Co., Ltd

best seller Application:API

WITHAFERIN A

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Chemsigma International Co.,Ltd.

bulk?production Application:Pharmaceutical intermediates

WITHAFERIN A

Cas:5119-48-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

2,3-dihydro-3β-O-sulfate withaferin A
1159096-16-8

2,3-dihydro-3β-O-sulfate withaferin A

withaferin-A
5119-48-2

withaferin-A

Conditions
ConditionsYield
With pyridine; potassium carbonate at 90℃; for 1h;93%
With carbon dioxide In dimethyl sulfoxide at 37℃;
mevalonolactone
674-26-0

mevalonolactone

A

jaborosalactone A
5788-94-3

jaborosalactone A

B

withaferin-A
5119-48-2

withaferin-A

Conditions
ConditionsYield
With Acnistus breviflorus In water for 72h;A 4.0 mg
B 5.6 mg
N-butylamine
109-73-9

N-butylamine

withaferin-A
5119-48-2

withaferin-A

2,3-dihydro-3β-(N-buthylamin)withaferin A

2,3-dihydro-3β-(N-buthylamin)withaferin A

Conditions
ConditionsYield
With aluminum oxide In dichloromethane at 20℃; for 20h; Inert atmosphere;100%
acetic anhydride
108-24-7

acetic anhydride

withaferin-A
5119-48-2

withaferin-A

4,27-di-O-acetylwithaferin A
22848-79-9

4,27-di-O-acetylwithaferin A

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 24h;99%
withaferin-A
5119-48-2

withaferin-A

2,3-dihydro-withaferin A

2,3-dihydro-withaferin A

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen; triethylamine In ethanol for 1h;98%
withaferin-A
5119-48-2

withaferin-A

2,3-dihydro-3β-hydroxywithaferin A

2,3-dihydro-3β-hydroxywithaferin A

Conditions
ConditionsYield
With sodium hydroxide In tetrahydrofuran; water at 0 - 20℃; for 8h;98%
sodium methylate
124-41-4

sodium methylate

withaferin-A
5119-48-2

withaferin-A

3-β-methoxy-2,3-dihydrowithaferin A

3-β-methoxy-2,3-dihydrowithaferin A

Conditions
ConditionsYield
In methanol at 20℃; for 0.75h; Inert atmosphere;96%
tert-butyldimethylsilyl chloride
18162-48-6

tert-butyldimethylsilyl chloride

withaferin-A
5119-48-2

withaferin-A

withaferin A 27-tert-butyldimethylsilyl ether
1392820-18-6

withaferin A 27-tert-butyldimethylsilyl ether

Conditions
ConditionsYield
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
pivaloyl chloride
3282-30-2

pivaloyl chloride

withaferin-A
5119-48-2

withaferin-A

A

27-O-pivalylwithaferin A

27-O-pivalylwithaferin A

B

4,27-di-O-pivalylwithaferin A

4,27-di-O-pivalylwithaferin A

Conditions
ConditionsYield
With dmap; triethylamine In dichloromethane at 20℃; for 0.5h;A 93%
B 5%
withaferin-A
5119-48-2

withaferin-A

(22R)-4β,5β,27-trihydroxy-6α-iodo-1-oxowitha-2,24-dienolide

(22R)-4β,5β,27-trihydroxy-6α-iodo-1-oxowitha-2,24-dienolide

Conditions
ConditionsYield
With iodine; triphenylphosphine In dichloromethane at 0 - 25℃; for 2h;93%
withaferin-A
5119-48-2

withaferin-A

A

withalongolide F
1350448-47-3

withalongolide F

B

C28H38O6
1392819-99-6

C28H38O6

Conditions
ConditionsYield
With boron trifluoride diethyl etherate In tetrahydrofuran at 0 - 20℃; for 0.75h; Inert atmosphere;A 3%
B 91%
4-Methoxybenzenethiol
696-63-9

4-Methoxybenzenethiol

withaferin-A
5119-48-2

withaferin-A

C35H46O7S
1325214-16-1

C35H46O7S

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction;85%
thiophenol
108-98-5

thiophenol

withaferin-A
5119-48-2

withaferin-A

C34H44O6S
1002342-82-6

C34H44O6S

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction;85%
withaferin-A
5119-48-2

withaferin-A

6-α-chloro-5-β-hydroxywithaferin A

6-α-chloro-5-β-hydroxywithaferin A

Conditions
ConditionsYield
With cerium(III) chloride heptahydrate In tetrahydrofuran; acetonitrile for 18h; Inert atmosphere; Reflux;85%
2-thiolomethyl-furan
98-02-2

2-thiolomethyl-furan

withaferin-A
5119-48-2

withaferin-A

C33H44O7S
1325214-17-2

C33H44O7S

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction;84%
L-Cysteine methyl ester
2485-62-3

L-Cysteine methyl ester

withaferin-A
5119-48-2

withaferin-A

C32H47NO8S
1325214-21-8

C32H47NO8S

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction;83%
para-bromobenzenethiol
106-53-6

para-bromobenzenethiol

withaferin-A
5119-48-2

withaferin-A

C34H43BrO6S
1325214-15-0

C34H43BrO6S

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction;82%
p-Chlorothiophenol
106-54-7

p-Chlorothiophenol

withaferin-A
5119-48-2

withaferin-A

C34H43ClO6S
1325214-14-9

C34H43ClO6S

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction;82%
2-picolinoyl chloride hydrochloride
39901-94-5

2-picolinoyl chloride hydrochloride

withaferin-A
5119-48-2

withaferin-A

C34H41NO7

C34H41NO7

Conditions
ConditionsYield
With triethylamine In dichloromethane at 0 - 20℃; Inert atmosphere;82%
L-Valine methyl ester
4070-48-8

L-Valine methyl ester

withaferin-A
5119-48-2

withaferin-A

C34H51NO8

C34H51NO8

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction;81%
withaferin-A
5119-48-2

withaferin-A

benzylamine
100-46-9

benzylamine

6α-benzylamino-4β,5β,27-trihydroxy-1-oxowitha-2,24-dienolide

6α-benzylamino-4β,5β,27-trihydroxy-1-oxowitha-2,24-dienolide

Conditions
ConditionsYield
In water at 20℃; for 40h; regioselective reaction;80%
L-phenylalanine
63-91-2

L-phenylalanine

withaferin-A
5119-48-2

withaferin-A

C38H51NO8

C38H51NO8

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction;78%
withaferin-A
5119-48-2

withaferin-A

4β,27-dihydroxy-1-oxowitha-2,24-dienolide-5α,6α-thiirane

4β,27-dihydroxy-1-oxowitha-2,24-dienolide-5α,6α-thiirane

Conditions
ConditionsYield
With ammonium thiocyanate; 1,3,5-trichloro-2,4,6-triazine In tetrahydrofuran for 15h; Reflux;76%
withaferin-A
5119-48-2

withaferin-A

4β,5β,27-trihydroxy-1-oxowitha-2,24-dienolide

4β,5β,27-trihydroxy-1-oxowitha-2,24-dienolide

Conditions
ConditionsYield
With iodine In chloroform at 20℃; for 1.5h; Cooling with ice;74%
trimethylsilylazide
4648-54-8

trimethylsilylazide

withaferin-A
5119-48-2

withaferin-A

2,3-dihydro,3-β-azido withaferin-A
1325214-13-8

2,3-dihydro,3-β-azido withaferin-A

Conditions
ConditionsYield
With triethylamine In methanol at 20℃; pH=8.5; Michael-type addition; stereoselective reaction;73%
acetic anhydride
108-24-7

acetic anhydride

withaferin-A
5119-48-2

withaferin-A

A

27-acetoxy-5β,6β-epoxy-4β-hydroxy-1-oxo-witha-2,24-dienolide
1214886-35-7

27-acetoxy-5β,6β-epoxy-4β-hydroxy-1-oxo-witha-2,24-dienolide

B

4,27-di-O-acetylwithaferin A
22848-79-9

4,27-di-O-acetylwithaferin A

Conditions
ConditionsYield
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
10328-92-4

N-Methylisatoic anhydride

withaferin-A
5119-48-2

withaferin-A

27-O-(o-N-methylaminobenzyl)withaferin A

27-O-(o-N-methylaminobenzyl)withaferin A

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 24h;73%
acetic anhydride
108-24-7

acetic anhydride

withaferin-A
5119-48-2

withaferin-A

27-acetoxy-5β,6β-epoxy-4β-hydroxy-1-oxo-witha-2,24-dienolide
1214886-35-7

27-acetoxy-5β,6β-epoxy-4β-hydroxy-1-oxo-witha-2,24-dienolide

Conditions
ConditionsYield
With pyridine at 25℃; for 2h;72%
withaferin-A
5119-48-2

withaferin-A

A

2β,3β-epoxywithaferin A

2β,3β-epoxywithaferin A

B

(2β,3β)-(24β,25β)-diepoxywithaferin A

(2β,3β)-(24β,25β)-diepoxywithaferin A

Conditions
ConditionsYield
With dihydrogen peroxide; sodium hydroxide In methanol; dichloromethane at 20℃; for 0.0833333h;A 69%
B 27%
N-acetylcystein
616-91-1

N-acetylcystein

withaferin-A
5119-48-2

withaferin-A

C33H47NO9S
1582279-51-3

C33H47NO9S

Conditions
ConditionsYield
In methanol at 25℃; for 48h;66%
withaferin-A
5119-48-2

withaferin-A

benzylamine
100-46-9

benzylamine

2,3-dihydro-3β-(N-benzylamin)withaferin A

2,3-dihydro-3β-(N-benzylamin)withaferin A

Conditions
ConditionsYield
With aluminum oxide In dichloromethane at 20℃; for 20h; Inert atmosphere;66%

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