5α-PREGNAN-17, 21-DIOL-3, 20-DIONE CAS 312-99-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 312-99-2 |
| Molecular Formula | C21H32O4 |
| Molecular Weight | 348.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 5α-PREGNAN-17, 21-DIOL-3, 20-DIONE (CAS 312-99-2) pharmaceutical standards reference standard. Molecular formula: C21H32O4. Molecular weight: 348.48 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C21H32O4 |
| Molecular Weight | 348.48 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related PREGNAN Standards
- 5α-PREGNAN-3β, 21-DIOL-11, 20-DIONE (CAS 566-02-9)
- 5β-PREGNAN-17, 21-DIOL-3, 20-DIONE (CAS 566-42-7)
- 5α-PREGNAN-3β, 11β, 21-TRIOL-20-ONE (CAS 516-16-5)
- 5α-PREGNAN-3β, 17, 21-TRIOL-20-ONE (CAS 516-47-2)
- 5β-Pregnan-21-ol-3,11,20-trione (CAS 10417-86-4)
- 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)
Recommended Standards
- 5α-Dihydrocorticosterone 100ug/ml in Methanol (CAS 298-25-9)
- 5,6-Dihydro-5,6-dihydroxyretinoic Acid Methyl Ester (CAS 75664-64-1)
- 5β- Dihydrocorticosterone (CAS 566-01-8)
- 3-Hydroxy-5-((5-hydroxy-1,4,5,6-tetrahydropyrimidin-2-yl)amino)benzoic acid (CAS 240431-49-6)
- 4-Amino-2-ethoxypyridine (CAS 89943-12-4)
- 2-(4-Fluoro-3-methylphenyl)-2-hydroxyacetic acid (CAS 1214334-23-2)
- 6-fluoro-3-iodo-1H-indazole (CAS 885522-07-6)
- 1-CHloro-3-(propan-2-yloxy)-5-(trifluoromethyl)benzene (CAS 1369839-32-6)
- 2,5-Diaminohydroquinone dihydrochloride 2,5-diaminobenzene-1,4-diol dihydrochloride 24171-03-7 (CAS 24171-03-7)
- [3-31]-Semaglutide D (Sodium salt) (CAS CATO-C4X-2226119)
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