Testosterone Impurity 31 CAS CATO-C4X-243231
| CAS No. | CATO-C4X-243231 |
| Molecular Formula | C27H38O3 |
| Molecular Weight | 410.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Testosterone Impurity 31 is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Testosterone Impurity 31 (CAS CATO-C4X-243231, C27H38O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Testosterone Impurity 31 (C27H38O3) 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 manufactures Testosterone Impurity 31 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C27H38O3 |
| Molecular Weight | 410.59 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Testosterone Standards
- Testosterone Impurity 24 (CAS 122651-11-0)
- 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)
- Boldenone Cypionate (CAS 106505-90-2)
- Calcipotriol EP Impurity A (CAS 126860-83-1)
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- Tucatinib Impurity 23 (CAS 920966-13-8)
- Vonoprazan Impurity 278 (CAS CATO-C4X-1020278)
- Cabozantinib Impurity 26 (CAS 6315-89-5)
- Vinleurosine (CAS 23360-92-1)
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- 3-(2,3,5,6-tetrafluoro-4-methoxyphenyl)cyclohexan-1-one (CAS 2575820-26-5)
- MOTS-c Peptide (CAS 1627580-64-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com