Teprenone impurity 47 CAS CATO-C4X-208147
| CAS No. | CATO-C4X-208147 |
| Molecular Formula | C23H38O5 |
| Molecular Weight | 394.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Teprenone impurity 47 (CAS CATO-C4X-208147, C23H38O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C23H38O5, Teprenone impurity 47 contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 394.54 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).
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 | C23H38O5 |
| Molecular Weight | 394.54 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Teprenone Standards
- Teprenone impurity 46 (CAS CATO-C4X-208146)
- Teprenone Impurity 30 (CAS CATO-C4X-208130)
- Teprenone impurity 38 (CAS CATO-C4X-208138)
- Teprenone impurity 41 (CAS 1206897-24-6)
- Teprenone impurity 45 (CAS CATO-C4X-208145)
- Teprenone impurity 48 (CAS CATO-C4X-208148)
- Teprenone impurity 49 (CAS CATO-C4X-208149)
- Teprenone impurity 50 (CAS CATO-C4X-208150)
Recommended Standards
- Nor Cholic Acid (CAS 60696-62-0)
- Estradiol Valerate Impurity 11 (CAS CATO-C4X-284211)
- Methyl 7-chloro-2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptanoate (CAS 261503-61-1)
- Protylonolide (CAS 74758-60-4)
- Avanafil Impurity 137 (CAS CATO-C4X-1118137)
- Febuxostat Impurity 13 (CAS 160844-75-7)
- Orforglipron impurity 80 (CAS CATO-C4X-323480)
- N-(3-Aminophenyl)-2-[2-(sec-butyl)phenoxy]-propanamide (CAS 1020054-42-5)
- N-benzylpropan-2-amine hydrochloride (CAS 18354-85-3)
- methyl 2-(4-aminophenyl)-2-methylpropanoate (CAS 54815-23-5)
- Salbutamol Impurity 107 (CAS 66654-06-6)
- (E)-2-{3-methoxy-4-[(4-methoxyphenyl)methoxy]phenyl}-N-(4-methylphenyl)ethene-1-sulfonamide (CAS 339105-06-5)
- 4-Bromo-1-(cyclopentylmethyl)-1h-pyrazol-3-amine (CAS 1247843-36-2)
- Semaglutide impurity 26 (CAS CATO-C4X-222626)
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