Altrenogest Impurity 1 CAS CATO-C4X-24831
| CAS No. | CATO-C4X-24831 |
| Molecular Formula | C21H26O2 |
| Molecular Weight | 310.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Altrenogest Impurity 1 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.
As a process- or degradation-related impurity, Altrenogest Impurity 1 (CAS CATO-C4X-24831, C21H26O2) 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, Altrenogest Impurity 1 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 310.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C21H26O2 |
| Molecular Weight | 310.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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 Altrenogest Standards
- Altrenogest impurity 15 (CAS CATO-C4X-248315)
- Altrenogest Impurity 4 (CAS CATO-C4X-24834)
- Altrenogest (CAS 850-52-2)
- Altrenogest Impurity 7 (CAS CATO-C4X-24837)
- Altrenogest impurity 12 (CAS 23760-34-1)
- Altrenogest Impurity 3 (CAS 141299-96-9)
- Altrenogest impurity 9 (CAS CATO-C4X-24839)
- Altrenogest impurity 13 (CAS CATO-C4X-248313)
Recommended Standards
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- Dydrogesterone EP Impurity A (CAS 23035-53-2)
- Levonorgestrel EP Impurity M (CAS 51087-61-7)
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- Rapamycin Impurity 6 (CAS 156223-31-3)
- Vericiguat Impurity 8 (CAS CATO-C4X-28968)
- Budesonide Impurity 47 (CAS CATO-C4X-138947)
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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