Mifepristone Impurity 16 CAS CATO-C4X-121616
| CAS No. | CATO-C4X-121616 |
| Molecular Formula | C29H35NO2 |
| Molecular Weight | 429.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Mifepristone Impurity 16 (CAS CATO-C4X-121616) is a certified pharmaceutical impurity reference standard with the molecular formula C29H35NO2 and a molecular weight of 429.59 g/mol.
Based on its molecular formula C29H35NO2, Mifepristone Impurity 16 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 429.59 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C29H35NO2 |
| Molecular Weight | 429.59 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Mifepristone Standards
- Mifepristone Impurity 10 (CAS CATO-C4X-121610)
- Mifepristone Impurity 3 (CAS CATO-C4X-12163)
- Mifepristone (CAS 84371-65-3)
- Mifepristone-d3 (CAS CATO-C4X-12164)
- Mifepristone-D6 (CAS 1228097-18-4)
- Mifepristone Impurity 1 (CAS 104004-96-8)
- Mifepristone Impurity 15 (CAS CATO-C4X-121615)
- Mifepristone N-Oxide (CAS 91934-98-4)
Recommended Standards
- 6-Hexadecanoylamido-4-Methylumbelliferone (CAS 99422-73-8)
- Fexofenadine Impurity 42 (CAS 214601-54-4)
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- Miproxifene (CAS 129612-87-9)
- Iguratimod impurity 93 (CAS CATO-C4X-182693)
- Levocarnitine EP Impurity D (CAS CATO-C4X-129222)
- Tucatinib Impurity 22 (CAS 920966-03-6)
- Acetylcysteine EP Impurity A (CAS 56-89-3)
- 4-((4-Bromophenyl)thio)-3-nitrobenzaldehyde (CAS 175278-49-6)
- Ethyl 4-fluoro-8-iodo-6H-furo[2,3-e]indole-7-carboxylate (CAS 1037763-99-7)
- Methyl 4-(4-acetylphenyl)-2-chlorobenzoate (CAS 1820704-05-9)
- Methyl 5-chloro-6-formyl-3-pyridinecarboxylate (CAS 1134777-23-3)
- Sacubitril Impurity N38 (CAS 2216746-87-9)
- Peptide YY (human) trifluoroacetate salt (CAS 118997-30-1)
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