Mifepristone Impurity 15 CAS CATO-C4X-121615
| CAS No. | CATO-C4X-121615 |
| Molecular Formula | C28H32N2O3 |
| Molecular Weight | 444.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Mifepristone Impurity 15 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.
Mifepristone Impurity 15 (CAS CATO-C4X-121615) is a certified pharmaceutical impurity reference standard with the molecular formula C28H32N2O3 and a molecular weight of 444.57 g/mol.
Mifepristone Impurity 15 (C28H32N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C28H32N2O3 |
| Molecular Weight | 444.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Mifepristone Standards
- Mifepristone N-Oxide (CAS 91934-98-4)
- Mifepristone Impurity 9 (CAS 91934-77-9)
- Mifepristone-D6 (CAS 1228097-18-4)
- Mifepristone-d3 (CAS CATO-C4X-12164)
- Mifepristone Impurity 10 (CAS CATO-C4X-121610)
- Mifepristone Impurity 16 (CAS CATO-C4X-121616)
- Mifepristone Impurity 3 (CAS CATO-C4X-12163)
- Mifepristone (CAS 84371-65-3)
Recommended Standards
- Valsartan-d9 (Major) (CAS 1089736-73-1)
- Dexmedetomidine Impurity 28 (CAS 176721-01-0)
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- m-PEG9-SH (CAS 651042-84-1)
- Fluvoxamine impurity 45 (CAS CATO-C4X-195145)
- Rosuvastatin Impurity 261 (CAS CATO-C4X-1169261)
- Lurbinectedin Impurity 10 (CAS CATO-C4X-311410)
- Methyl 2-Fluoro-4-iodobenzoate (CAS 204257-72-7)
- 3-(4-methylpiperazin-1-yl)-2-nitroaniline (CAS 74628-20-9)
- 1-(5-Ethylisoxazol-3-yl)-N,N-dimethylmethanamine (CAS 60148-45-0)
- 2,4-Dichloro-3,6-dimethylpyridine (CAS 83791-90-6)
- 4'-Fluoro-3'-methoxy-[1,1'-biphenyl]-3-ol (CAS 1261957-92-9)
- N-[(2E)-3-(4-Hydroxyphenyl)-1-oxo-2-propen-1-yl]-L-aspartic Acid (CAS 151435-24-4)
- D-Pro36-Tirzepatide (CAS CATO-CPTD788903)
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