Testosterone Impurity 24 CAS 122651-11-0
| CAS No. | 122651-11-0 |
| Molecular Formula | C27H38O3 |
| Molecular Weight | 410.59 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, Testosterone Impurity 24 (CAS 122651-11-0, C27H38O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, a hydroxyl group, an ether linkage, Testosterone Impurity 24 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 410.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), Testosterone Impurity 24 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.
Physical & Chemical Properties
| Molecular Formula | C27H38O3 |
| Molecular Weight | 410.59 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
Related Testosterone Standards
- Testosterone Impurity 31 (CAS CATO-C4X-243231)
- Testosterone Impurity 42 (CAS CATO-C4X-243242)
- Testosterone Impurity 41 (CAS CATO-C4X-243241)
- Testosterone Cypionate (CAS 58-20-8)
- Testosterone Impurity 30 (CAS CATO-C4X-243230)
- Testosterone phenylacetate (CAS 5704-03-0)
- Testosterone Decanoate EP Impurity B (CAS 29430-22-6)
- Testosterone Impurity 44 (CAS CATO-C4X-243244)
Recommended Standards
- Estradiol Impurity 46 (CAS CATO-C4X-163646)
- Calcipotriol EP Impurity A (CAS 126860-83-1)
- Norethindrone Enanthate (CAS 3836-23-5)
- Boldenone Cypionate (CAS 106505-90-2)
- Bumetanide Impurity 22 (CAS CATO-C4X-198622)
- N-Nitroso Tosufloxacin impurity 7 (CAS CATO-C4X-19767)
- Remdesivir Impurity 14 (CAS CATO-C4X-210014)
- 4,5,6,7-tetrahydro-1h-imidazo(4,5-c)pyridine-6-carboxylic acid 5021-45-4 AR-1F8239 (CAS 5021-45-4)
- cis-N-Cbz-1,4-cyclohexanediamine (CAS 149423-70-1)
- Cefditoren Impurity 58 (CAS CATO-C4X-135858)
- N-Ethyl-3-(4-pyridyl)aniline (CAS 66375-90-4)
- 2-(Tert-butylamino)-1-(m-tolyl)ethan-1-ol (CAS 754924-97-5)
- Decitabine Impurity 26 (CAS 1140891-02-6)
- Semaglutide impurity 42 (CAS CATO-C4X-222642)
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