5α-Pregnane-3α,17α-diol-20-one CAS 6890-65-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 6890-65-9 |
| Molecular Formula | C21H34O3 |
| Molecular Weight | 334.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5α-Pregnane-3α,17α-diol-20-one (CAS 6890-65-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H34O3. Molecular weight: 334.49 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H34O3 |
| Molecular Weight | 334.49 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.) | 1958 |
Related Pregnane Standards
- (3α,5β)-Pregnane-3,20,21-triol (CAS 2041-77-2)
- 5a-Pregnane-3a,20a-diol (CAS 566-58-5)
- 5α-Pregnane-3β,20(S)-diol (CAS 566-56-3)
- 5β-Pregnane-3β,20(S)-diol (CAS 80-90-0)
- 5Beta-Pregnane-3Alpha,20Alpha-Diol (CAS 80-92-2)
- 5α-Pregnane-3-one-20α-ol (CAS 516-59-6)
- (5α)-Pregnane-3,20-dione Cyclic 20-(1,2-Ethanediyl Acetal) (CAS 1452-23-9)
- Pregnane-d4 (CAS 205529-77-7)
Recommended Standards
- 5-PREGNEN-3β, 16α, 20α-TRIOL (CAS 3885-13-0)
- 5β-PREGNAN-3α, 11β-DIOL-20-ONE (CAS 565-92-4)
- 5a-Pregnan-3b,17a-diol-20-one (CAS 570-54-7)
- 2-Butyl-1,3,6,2-dioxazaborocane (CAS 92527-13-4)
- <I>N</I>,<I>N</I>′-dimethyl-1,6-hexanediamine (CAS 13093-04-4)
- 2-(5-((3-(3-Chloro-4-ethoxyphenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)acetic acid (CAS 956958-57-9)
- Venetoclax Impurity 53 (CAS CATO-C4X-249553)
- ML355 (CAS 1532593-30-8)
- 2-(Difluoromethyl)-6-hydroxyquinoline (CAS 1261746-45-5)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
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