Methyl 3,17-Dioxo-4-androsten-19-oate CAS 22256-03-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 22256-03-7 |
| Molecular Formula | C20H26O4 |
| Molecular Weight | 330.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Methyl 3,17-Dioxo-4-androsten-19-oate (CAS 22256-03-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H26O4. Molecular weight: 330.42 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C20H26O4 |
| Molecular Weight | 330.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
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Recommended Standards
- meso-Dihydroguaiaretic acid (CAS 66322-34-7)
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- 4-Bromo-3-methoxybenzonitrile (CAS 120315-65-3)
- N-{3-(Dimethylamino)-1-[(4-methoxyphenyl)sulfonyl]-1H-1,2,4-triazol-5-yl}-N,N-dimethylamine (CAS 478032-04-1)
- N-(2-Cyano-3-methylbutan-2-yl)-2-((5-phenyl-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 757206-17-0)
- (1,3-Dicyclohexylimidazol-2-ylidene)copper(I) tert-butoxide (CAS 910806-89-2)
- (-)-3-Aminocyclohexa-1,5-dienecarboxylic acid (CAS 70249-37-5)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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