Progesterone Impurity 56 CAS 3510-20-1
| CAS No. | 3510-20-1 |
| Molecular Formula | C20H30O4 |
| Molecular Weight | 334.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Progesterone Impurity 56 (CAS 3510-20-1), a pharmacopoeial impurity reference standard (molecular formula C20H30O4, MW 334.45 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C20H30O4, Progesterone Impurity 56 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 334.45 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H30O4 |
| Molecular Weight | 334.45 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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.) | 1958 |
Related Progesterone Standards
- Progesterone Impurity 55 (CAS 76763-14-9)
- Progesterone Impurity N2 (CAS 40736-33-2)
- Progesterone Impurity 34 (CAS 60966-36-1)
- Progesterone Impurity 84 (CAS 66512-11-6)
- Progesterone Impurity 19 (CAS 16031-66-6)
- Progesterone Impurity 9 (CAS 641-80-5)
- Progesterone Impurity 15 (CAS 604-20-6)
- Progesterone Impurity 16 (CAS 604-19-3)
Recommended Standards
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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 18665070610 / Nicole.chen@cato-chem.com