| Identification | |
| Name: | Ergosta-2,24-dien-26-oicacid, 5,6-epoxy-4,22,27-trihydroxy-1-oxo-, d-lactone, (4b,5b,6b,22R)- |
| 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 |
| CAS: | 5119-48-2 |
| Molecular Formula: | C28H38 O6 |
| Molecular Weight: | 470.66 |
| InChI: | InChI=1/C28H38O6/c1-14-11-21(33-25(32)17(14)13-29)15(2)18-5-6-19-16-12-24-28(34-24)23(31)8-7-22(30)27(28,4)20(16)9-10-26(18,19)3/h7-8,15-16,18-21,23-24,29,31H,5-6,9-13H2,1-4H3/t15-,16-,18+,19-,20-,21+,23-,24+,26+,27-,28+/m0/s1 |
| Molecular Structure: |  |
| Properties | |
| Flash Point: | 226.7°C |
| Boiling Point: | 680.7°C at 760 mmHg |
| Density: | 1.28g/cm3 |
| Refractive index: | 1.599 |
| 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. |
| Biological Activity: | Steroid lactone that displays anti-inflammatory, antitumor and antiangiogenic activity. Inhibits endothelial cells (HUVEC) spouting in vitro (IC 50 = 12 nM) and in vivo . Prevents NF- κ B activation by inhibiting activation of IKK β . Also inhibits chymotrypsin-like activity of the 20S proteasome. |
| Flash Point: | 226.7°C |
| Usage: | Withaferin A is a promising anticancer constituent of Ayurvedic medicinal plant Withania somnifera. Withaferin A showed potent cytotoxicity against human head and neck squamous cell carcinoma (JMAR and MDA-1986). |
| Safety Data | |
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