2,3-Dihydro-3-methoxywithaferin A CAS 21902-96-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21902-96-5 |
| Molecular Formula | C29H42O7 |
| Molecular Weight | 502.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 2,3-Dihydro-3-methoxywithaferin A (CAS 21902-96-5) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C29H42O7. Molecular weight: 502.64 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C29H42O7 |
| Molecular Weight | 502.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Dihydro Standards
- 2,3-Dihydro-7-(Trifluoromethyl)-4H-1,2,4-Benzothiadiazine-4-Ethanol 1,1-Dioxide (CAS 1789-84-0)
- (9S)-10,11-Dihydro-6'-methoxy-9-(9-phenanthrenyloxy)cinchonan (CAS 135042-88-5)
- (8α,9R)-10,11-Dihydro-6'-methoxy-9-(9-phenanthrenyloxy)cinchonan (CAS 135096-78-5)
- N-(4-(4,5-Dihydro-1H-imidazol-2-yl)benzyl)-2-(2-(4-methoxy-N,2,6-trimethylphenylsulfonamido)ethoxy)-N-methylacetamide (CAS 633698-99-4)
- (5-benzyl-6,7-dihydro-4H-furo[3,2-c]pyridin-2-yl)-tributyl-stannane (CAS 1438283-59-0)
- Methyl 1,4-Dihydro-2,6-dimethyl-4-(2-trifluoromethyl)phenyl-pyridine-3-carboxylate-5-(3,4-dimethoxyphenyl)methyl Carboxamide (CAS 887406-99-7)
- 1,2-Dihydro-N-[(3-endo)-8-[(2R)-2-hydroxy-3-[methyl(methylsulfonyl)amino]propyl]-8-azabicyclo[3.2.1]oct-3-yl]-1-(1-methylethyl)-2-oxo-3-quinolinecarboxamide (CAS 866933-46-2)
- 1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic Acid 3-Ethyl 5-[2-[(2-hydroxybenzoyl)amino]ethyl] Ester (CAS 92565-34-9)
Recommended Standards
- (2E,4S,5S,6E,8E)-10-((2R,3S,6S,8R,9S)-8-((1E,3E)-4-Carboxy-3-methylbuta-1,3-dien-1-yl)-3,9-dimethyl-1,7-dioxaspiro[5.5]undecan-2-yl)-5-hydroxy-4,8-dimethyldeca-2,6,8-trienoic acid (CAS 214143-44-9)
- 3β-Methoxy-2,3-dihydrowithaferin A (CAS 73365-94-3)
- Mupirocin Impurity 18 (CAS 1246812-11-2)
- 3-Fluoro-3-thiomorpholinomethyl benzophenone (CAS 898763-07-0)
- 2-(tert-Butyl)-5-hydroxy-4-methylpyridazin-3(2H)-one (CAS 104010-22-2)
- Methyl 5-chloro-6-(trifluoromethyl)pyrazine-2-carboxylate (CAS 1688685-61-1)
- 4-(2-Difluoromethoxyphenyl)thiosemicarbazide (CAS 1152587-35-3)
- N-methyl-N-(piperidin-4-yl)-4-(trifluoromethyl)benzamide hydrochloride (CAS 1580795-67-0)
- (3-Cyano-2-hydroxyphenyl)trifluoroborate (CAS 2376462-72-3)
- Acetyl Hexapeptide-39 (CAS 1382088-38-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com