Progesterone Impurity 70 CAS 4192-93-2
| CAS No. | 4192-93-2 |
| Molecular Formula | C21H26O2 |
| Molecular Weight | 310.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Progesterone Impurity 70 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
As a process- or degradation-related impurity, Progesterone Impurity 70 (CAS 4192-93-2, C21H26O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Progesterone Impurity 70 (C21H26O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C21H26O2 |
| Molecular Weight | 310.43 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Progesterone Standards
- 16-delta Progesterone (CAS 1096-38-4)
- Progesterone EP Impurity A (CAS 24377-08-0)
- Progesterone EP Impurity J (CAS 1162-54-5)
- Progesterone EP Impurity K (CAS 17652-16-3)
- Progesterone EP Impurity H (CAS 1162-56-7)
- Progesterone Impurity 26 (CAS 13611-97-7)
- Progesterone (CAS 57-83-0)
- Progesterone EP Impurity M (17-alpha-Progesterone) (CAS 2000-66-0)
Recommended Standards
- 1Y3A5E2L1J 72714-74-0 Viqualine [INN] Viqualine 6-Methoxy-4-(3-((3R,4R)-3-vinyl-4-piperidyl)propyl)quinoline Viqualina [INN-Spanish] Viqualinum [INN-Latin] Viqualina Viqualinum UNII-1Y3A5E2L1J (CAS 72714-74-0)
- Drospirenone EP Impurity C (CAS 116298-21-6)
- 13(S)-Hydroperoxy-9(Z),11(E),15(Z)-octadecatrienoic acid 13(S)-Hydroperoxylinolenic acid 13-(S)-Hydroperoxylinolenic acid 67597-26-6 9,11,15-Octadecatrienoic acid, 13-hydroperoxy-, [S-(E,Z,Z)]- 9,11,15-octadecatrienoic acid, 13-hydroperoxy-, (9Z,11E,13S,15Z)- CMC_7377 (CAS 67597-26-6)
- Exemestane Impurity 33 (CAS CATO-C4X-164133)
- Chlortetracycline Impurity 24 (CAS CATO-C4X-233024)
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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