Progesterone Impurity 21 CAS 19633-95-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 19633-95-5 |
| Molecular Formula | C27H42O |
| Molecular Weight | 382.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Progesterone Impurity 21 (CAS 19633-95-5) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C27H42O. Molecular weight: 382.62 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C27H42O |
| Molecular Weight | 382.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Progesterone Standards
- Progesterone Impurity 88 (CAS 6723-95-1)
- Progesterone Impurity 35 (CAS 88128-62-5)
- Progesterone Impurity 36 (CAS 88128-61-4)
- Progesterone EP Impurity F (CAS 2257421-78-4)
- Progesterone EP Impurity G (CAS 2257421-79-5)
- Progesterone Impurity 54 (CAS CATO-C4X-150254)
- Progesterone Impurity 96 (CAS CATO-C4X-150296)
- Progesterone Impurity 99 (CAS 78822-16-9)
Recommended Standards
- Cholesta-4,7-dien-3-one (CAS 16826-35-0)
- (+)-CP 55940 (CAS 83002-05-5)
- N1,N1,N3,N3-tetrapentylmalonamide (CAS 1560797-76-3)
- 5-(Naphthalen-2-yl)imidazolidine-2,4-dione (CAS 95361-30-1)
- (4,5,6,7-Tetrahydro-1H-indazol-3-yl)methanethiol (CAS 2228310-10-7)
- BTA-2 (CAS 10205-62-6)
- 3-Methoxy-4-(trifluoromethyl)benzoyl chloride (CAS 1261571-92-9)
- EGF Receptor (988-993) (phosphorylated) (human) (H-2702.0001) (CAS 207554-36-7)
- (4AR,6S,7R,8R,8aS)-6-(ethylthio)-2-phenylhexahydropyrano[3,2-d][1,3]dioxine-7,8-diol (CAS 56119-28-9)
- Endo-Ala35-Tirzepatide (CAS CATO-CPTD788687)
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