Progesterone Impurity 97 CAS CATO-C4X-150297
| CAS No. | CATO-C4X-150297 |
| Molecular Formula | C22H32O2 |
| Molecular Weight | 328.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Progesterone Impurity 97 (CAS CATO-C4X-150297), a pharmacopoeial impurity reference standard (molecular formula C22H32O2, MW 328.49 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Progesterone Impurity 97 (C22H32O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 328.49 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
As a certified reference material (CRM), Progesterone Impurity 97 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H32O2 |
| Molecular Weight | 328.49 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Progesterone Standards
- (20R)-Progesterone EP Impurity I (CAS 66289-21-2)
- Progesterone Impurity N5 (CAS 35525-27-0)
- Progesterone Impurity N1(Mixture of Diastereomers) (CAS 71658-22-5)
- Progesterone EP Impurity I (S-isomer) (CAS 3986-89-8)
- Progesterone EP Impurity I (CAS 24254-01-1)
- Progesterone Impurity 43 (CAS CATO-C4X-150243)
- Progesterone Impurity 45 (CAS CATO-C4X-150245)
- Progesterone Impurity 51 (CAS 103858-15-7)
Recommended Standards
- Progesterone Impurity 71 (CAS CATO-C4X-150271)
- Exemestane Impurity 5 (CAS CATO-C4X-164134)
- Progesterone Impurity 64 (CAS 66875-13-6)
- Lovastatin Impurity 24 (CAS CATO-C4X-168424)
- Oxytocin Impurity 40 (Carbamido-Oxytocin) (CAS CATO-C4X-206640)
- Simvastatin Impurity 20 (CAS CATO-C4X-119920)
- Opicapone Impurity 49 (CAS CATO-C4X-240449)
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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