Product Name

  • Name

    WITHAFERIN A

  • EINECS
  • CAS No. 5119-48-2
  • Article Data4
  • CAS DataBase
  • Density 1.28
  • Solubility
  • Melting Point 252-253℃
  • Formula C28H38 O6
  • Boiling Point 680.7°C at 760 mmHg
  • Molecular Weight 470.606
  • Flash Point 226.7°C
  • Transport Information
  • Appearance
  • Safety A poison by intraperitoneal route. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating vapors.
  • Risk Codes
  • Molecular Structure Molecular Structure of 5119-48-2 (WITHAFERIN A)
  • Hazard Symbols
  • Synonyms 5b-Ergosta-2,24-dien-26-oic acid,5,6b-epoxy-4b,22,27-trihydroxy-1-oxo-, d-lactone, (20S,22R)- (8CI);Withaferin A (7CI); 5,6-Epoxy-5H-cyclopenta[a]phenanthrene,ergosta-2,24-dien-26-oic acid deriv.; NSC 101088; NSC 273757; Withaferine;Withaferine A
  • PSA 96.36000
  • LogP 3.35290

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%

Withaferine A Chemical Properties

Molecular structure of Withaferin A (CAS NO.5119-48-2) is:

Product Name: Withaferin A
CAS Registry Number: 5119-48-2
Molecular Weight: 470.59772 [g/mol]
Molecular Formula: C28H38O6
XLogP3-AA: 3.8
H-Bond Donor: 2
H-Bond Acceptor: 6
Surface Tension: 55.1 dyne/cm
Density: 1.28 g/cm3
Flash Point: 226.7 °C
Enthalpy of Vaporization: 114.26 kJ/mol
Boiling Point: 680.7 °C at 760 mmHg
Vapour Pressure: 1.85E-21 mmHg at 25°C

Withaferine A Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 54mg/kg (54mg/kg)   Toxicon. Vol. 8, Pg. 154, 1970.

Withaferine A Safety Profile

A poison by intraperitoneal route. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating vapors. 
Hazard Codes:ToxicT

Withaferine A Specification

 Withaferin A , its cas register number is 5119-48-2. It also can be called 5-19-06-00604 (Beilstein Handbook Reference) ; BRN 1335150 ; NSC 273757 ; NSC-101088 ; WITHAFERIN DERIV JPR, IOWA U. COMPOUND ; Withaferine A ; (4beta,5beta,6beta,22R)-5,6-Epoxy-4,22,27-trihydroxy-1-oxoergosta-2,24-dien-26-oic acid, delta-lactone ; 5-beta-Ergosta-2,24-dien-26-oic acid, 5,6-beta-epoxy-4-beta,22,27-trihydroxy-1-oxo-, delta-lactone, (20S,22R)- ; 5beta-Ergosta-2,24-dien-26-oic acid, 5,6beta-epoxy-4beta,22,27-trihydroxy-1-oxo-, delta-lactone, (20S,22R)-(8CI) ; Ergosta-2,24-dien-26-oic acid, 5,6-epoxy-4,22,27-trihydroxy-1-oxo-, gamma-lactone, (4bta,5beta,6beta,22R)- . Withaferin A (CAS NO.5119-48-2) is should be isolated from leaves of Withania somnifera Dun.

Post buying leads

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