Testosterone Impurity 50 CAS 58769-88-3
| CAS No. | 58769-88-3 |
| Molecular Formula | C22H32O3 |
| Molecular Weight | 344.49 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 344.49 g/mol gives Testosterone Impurity 50 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Testosterone Impurity 50 (CAS 58769-88-3) is a certified pharmaceutical impurity reference standard with the molecular formula C22H32O3 and a molecular weight of 344.49 g/mol.
The molecular framework of Testosterone Impurity 50 (C22H32O3) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C22H32O3 |
| Molecular Weight | 344.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
Related Testosterone Standards
- Testosterone Propionate (CAS 57-85-2)
- Testosterone Impurity 26 (CAS CATO-C4X-243226)
- Testosterone Propionate EP Impurity E (CAS 25862-97-9)
- Testosterone Propionate EP Impurity D (CAS 977-32-2)
- Testosterone-16，16，17-D3 propionate (CAS 876054-54-5)
- Testosterone Impurity 14 (CAS CATO-C4X-132614)
- Testosterone Isocaproate EP Impurity D (CAS 1169-49-9)
- Testosterone 17-butyrate (CAS 3410-54-6)
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