5α-PREGNAN-3β, 11β, 21-TRIOL-20-ONE CAS 516-16-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 516-16-5 |
| Molecular Formula | C21H34O4 |
| Molecular Weight | 350.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 5α-PREGNAN-3β, 11β, 21-TRIOL-20-ONE (CAS 516-16-5) pharmaceutical standards reference standard. Molecular formula: C21H34O4. Molecular weight: 350.49 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C21H34O4 |
| Molecular Weight | 350.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related PREGNAN Standards
- 5α-PREGNAN-3β, 17, 21-TRIOL-20-ONE (CAS 516-47-2)
- 5α-PREGNAN-17, 21-DIOL-3, 20-DIONE (CAS 312-99-2)
- 5α-PREGNAN-3β, 21-DIOL-11, 20-DIONE (CAS 566-02-9)
- 5β-PREGNAN-17, 21-DIOL-3, 20-DIONE (CAS 566-42-7)
- 5β-PREGNAN-3α, 11β, 17, 20α-TETROL (CAS 1242-48-4)
- 5α-PREGNAN-3β, 11β, 20β, 21-TETROL (CAS 7285-27-0)
- 5β-PREGNAN-3α, 11β, 17, 20β-TETROL (CAS 2434-06-2)
- 5β-Pregnan-21-ol-3,11,20-trione (CAS 10417-86-4)
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- 9,10-Dimethoxy-1,2,3,4,5,6,7,8-octamethylanthracene (CAS 75670-41-6)
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- 5,7-Dimethoxy-2-phenylchroman-4-one (CAS 36052-66-1)
- 3-Chloro-4-(2,2,2-trifluoroethoxy)aniline (CAS 83190-04-9)
- Tadalafil EP Impurity G (CAS 2520114-46-7)
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- 6-Bromo-3-cyano-2-formylbenzenesulfonyl chloride (CAS 1806849-87-5)
- Casein Kinase II Receptor Peptide (CAS 198481-81-1)
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