Amorolfine Impurity 43 CAS CATO-C4X-154243
| CAS No. | CATO-C4X-154243 |
| Molecular Formula | C22H36O2 |
| Molecular Weight | 332.52 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, Amorolfine Impurity 43 (CAS CATO-C4X-154243, C22H36O2) 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, Amorolfine Impurity 43 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 332.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Amorolfine Impurity 43 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 | C22H36O2 |
| Molecular Weight | 332.52 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Amorolfine Standards
- Amorolfine Impurity 44 (CAS CATO-C4X-154244)
- rac-Amorolfine Impurity 18 (Mixture of Diastereomers) (CAS CATO-C4X-154218)
- Amorolfine EP impurity M (CAS CATO-C4X-154227)
- Amorolfine impurity 73 (CAS 78613-39-5)
- Amorolfine Impurity 74 (CAS CATO-C4X-154274)
- Amorolfine Impurity 92 (CAS CATO-C4X-154292)
- Amorolfine Hydrochloride - Impurity G (CAS 1260498-34-7)
- Amorolfine Impurity 59 (CAS CATO-C4X-154259)
Recommended Standards
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- 7-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]thiazole (CAS 1326714-48-0)
- Semaglutide impurity 56 (CAS CATO-C4X-222656)
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