Medroxyprogesterone Acetate EP Impurity A CAS 984-47-4
| CAS No. | 984-47-4 |
| Molecular Formula | C24H34O5 |
| Molecular Weight | 402.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Medroxyprogesterone Acetate EP Impurity A (C24H34O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Medroxyprogesterone Acetate EP Impurity A (CAS 984-47-4, C24H34O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Medroxyprogesterone Acetate EP Impurity A 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 | C24H34O5 |
| Molecular Weight | 402.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Medroxyprogesterone Standards
- Medroxyprogesterone Impurity N1 (CAS 16319-93-0)
- Medroxyprogesterone impurity 8 (CAS 136803-81-1)
- Medroxyprogesterone Acetate Impurity 7 (CAS 28018-91-9)
- Medroxyprogesterone Acetate Impurity 19 (CAS 71315-38-3)
- Medroxyprogesterone Acetate EP Impurity F (CAS 69688-15-9)
- Medroxyprogesterone Acetate EP Impurity D (CAS 2242-65-1)
- Medroxyprogesterone Acetate (CAS 71-58-9)
- Medroxyprogesterone Impurity 19 (CAS CATO-C4X-145719)
Recommended Standards
- Erythromycin EP Impurity N (CAS 3225-82-9)
- Lovastatin EP Impurity F (CAS 1048973-04-1)
- Eptaloprost (CAS 90693-76-8)
- Ulipristal Impurity 27 (CAS 1655514-79-6)
- Alogliptin Impurity 53 (CAS CATO-C4X-109953)
- Losartan Potassium EP Impurity E (CAS 120568-11-8)
- Vardenafil Impurity N1 (CAS 448184-56-3)
- 2,4-Dichlorophenyl-3'-methyl-4'-nitrophenyl ether (CAS 42488-57-3)
- 1-amino-3-ethoxy-2,2-dimethylcyclobutane-1-carboxylic acid hydrochloride (CAS 1796903-83-7)
- AST-1306 (CAS 897383-62-9)
- 2,2,2-Trifluoroethyl n-(3-ethynylphenyl)carbamate (CAS 1087798-02-4)
- 3-(Hydroxymethyl)-4-(trifluoromethoxy)phenol (CAS 1261863-34-6)
- 5-Bromo-N,N,2-trimethylbenzenesulfonamide (CAS 473477-02-0)
- [D-Ser6]-Semaglutide (CAS CATO-C4X-2226287)
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