Testosterone Impurity 53 CAS CATO-C4X-243253
| CAS No. | CATO-C4X-243253 |
| Molecular Formula | C28H42O3 |
| Molecular Weight | 426.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 426.63 g/mol gives Testosterone Impurity 53 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Testosterone Impurity 53 (CAS CATO-C4X-243253, C28H42O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Testosterone Impurity 53 (C28H42O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 426.63 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C28H42O3 |
| Molecular Weight | 426.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Testosterone Standards
- Testosterone 3-Cyclohexylpropionate (CAS 2034-94-8)
- Testosterone Impurity 32 (CAS CATO-C4X-243232)
- Testosterone Cyclohexylmethyl Carbonate (CAS 2697-92-9)
- Testosterone Decanoate EP Impurity C (CAS 57525-67-4)
- Testosterone-16,16,17-D3-3-phenyl propionate (CAS 876054-55-6)
- Testosterone Phenylpropionate (CAS 1255-49-8)
- Testosterone Impurity 21 (CAS CATO-C4X-132621)
- Testosterone Impurity 22 (CAS CATO-C4X-132622)
Recommended Standards
- 2-Chloro-3-fluoro-5-(tributylstannyl)pyridine 2753AE 405556-97-0 C17H29ClFNSn (CAS 405556-97-0)
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- 4-Chloro-5-(4-methoxyphenyl)-3-perfluorobutyl-1H-pyrazole (CAS 1029636-18-7)
- (4S,4'S)-2,2'-(1-(4-(tert-Butyl)phenyl)propane-2,2-diyl)bis(4-(tert-butyl)-4,5-dihydrooxazole) (CAS 2368898-58-0)
- Rimegepant Impurity 16 (CAS 1397526-11-2)
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- Caspofungin Impurity 26 (CAS CATO-C4X-157526)
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- 2-(4-(Difluoromethyl)-5-methoxy-2-(trifluoromethoxy)pyridin-3-yl)acetonitrile (CAS 1806774-58-2)
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- 2-(Cyclohexanecarbonylamino)-4-methylpentanoic acid (CAS 121428-84-0)
- (1-Isopropyl-1H-benzo[d]imidazol-2-yl)methanamine dihydrochloride (CAS 1334146-16-5)
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