5α-PREGNAN-3β, 17, 21-TRIOL-20-ONE CAS 516-47-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 516-47-2 |
| Molecular Formula | C21H34O4 |
| Molecular Weight | 350.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5α-PREGNAN-3β, 17, 21-TRIOL-20-ONE (CAS 516-47-2) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C21H34O4. Molecular weight: 350.49 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
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, 11β, 21-TRIOL-20-ONE (CAS 516-16-5)
- 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)
Recommended Standards
- 9,10-Dimethoxy-1,2,3,4,5,6,7,8-octamethylanthracene (CAS 75670-41-6)
- 5,8,11,14,17,20-Hexaoxatetracosane (CAS 51105-00-1)
- Allotetrahydro S (CAS 601-01-4)
- 5-Hydroxy-4-(3-(piperidin-1-ylmethyl)phenyl)isoquinolin-1(2H)-one (CAS 651029-64-0)
- 2-(Tetrahydro-2H-thiopyran-4-yl)acetamide (CAS 178243-07-7)
- 3-nitrobenzoyl chloride (CAS 121-90-4)
- 2-Chloro-N4-(furan-2-ylmethyl)-5-nitropyrimidine-4,6-diamine (CAS 326007-10-7)
- 4-(3-Chlorophenyl)azetidin-2-one (CAS 930769-45-2)
- 4-(6-Bromoquinolin-4-yl)morpholine (CAS 474707-20-5)
- Semaglutide impurity 272 (CAS CATO-C4X-2226272)
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