Testosterone Impurity 26 CAS CATO-C4X-132626
| CAS No. | CATO-C4X-132626 |
| Molecular Formula | C33H44O4 |
| Molecular Weight | 504.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Testosterone Impurity 26 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.
Testosterone Impurity 26 (CAS CATO-C4X-132626) is a certified pharmaceutical impurity reference standard with the molecular formula C33H44O4 and a molecular weight of 504.70 g/mol.
Testosterone Impurity 26 (C33H44O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C33H44O4 |
| Molecular Weight | 504.70 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Testosterone Standards
- Testosterone Impurity 24 (CAS CATO-C4X-132624)
- Testosterone Impurity 25 (CAS CATO-C4X-132625)
- Testosterone Impurity 27 (CAS CATO-C4X-132627)
- Testosterone Impurity 28 (CAS CATO-C4X-132628)
- Testosterone Impurity 29 (CAS CATO-C4X-132629)
- Testosterone Impurity N9 (CAS 162890-98-4)
- Testosterone Impurity 12 (CAS CATO-C4X-243212)
- Testosterone Impurity 9 (CAS CATO-C4X-24329)
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