Testosterone Impurity 24 CAS CATO-C4X-132624
| CAS No. | CATO-C4X-132624 |
| Molecular Formula | C33H44O4 |
| Molecular Weight | 504.70 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.
CATO supplies Testosterone Impurity 24 (CAS CATO-C4X-132624), a pharmacopoeial impurity reference standard (molecular formula C33H44O4, MW 504.70 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C33H44O4, Testosterone Impurity 24 contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 504.70 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | 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 25 (CAS CATO-C4X-132625)
- Testosterone Impurity 26 (CAS CATO-C4X-132626)
- 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)
Recommended Standards
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