Amorolfine Impurity 42 CAS CATO-C4X-154242
| CAS No. | CATO-C4X-154242 |
| Molecular Formula | C20H33NO2 |
| Molecular Weight | 319.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Amorolfine Impurity 42.
Amorolfine Impurity 42 (CAS CATO-C4X-154242) is a certified pharmaceutical impurity reference standard with the molecular formula C20H33NO2 and a molecular weight of 319.48 g/mol.
The molecular framework of Amorolfine Impurity 42 (C20H33NO2) is characterized by a steroid core, an amide group, 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C20H33NO2 |
| Molecular Weight | 319.48 g/mol |
| Appearance | Off-white to pale 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Amorolfine Standards
- Amorolfine Impurity 83 (CAS CATO-C4X-154283)
- Amorolfine Impurity 84 (CAS CATO-C4X-154284)
- Amorolfine - API Standards (CAS 78613-35-1)
- Amorolfine Impurity N2 (CAS 67468-13-7)
- trans-Amorolfine (CAS 2134097-34-8)
- Amorolfine Impurity 35 (CAS CATO-C4X-154235)
- Amorolfine Hydrochloride EP Impurity I (CAS CATO-C4X-154278)
- Amorolfine (CAS 67467-83-8)
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