Adapalene Impurity 22 CAS CATO-C4X-180922
| CAS No. | CATO-C4X-180922 |
| Molecular Formula | C36H36O4 |
| Molecular Weight | 532.67 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.
Adapalene Impurity 22 (CAS CATO-C4X-180922) is a certified pharmaceutical impurity reference standard with the molecular formula C36H36O4 and a molecular weight of 532.67 g/mol.
Based on its molecular formula C36H36O4, Adapalene Impurity 22 contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 532.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Adapalene Impurity 22 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 | C36H36O4 |
| Molecular Weight | 532.67 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Adapalene Standards
- Adapalene EP Impurity D (CAS 932033-57-3)
- Adapalene Impurity 16 (CAS CATO-C4X-180916)
- Adapalene EP Impurity B (CAS 1346599-76-5)
- Adapalene Impurity 5 (CAS 106685-41-0)
- Adapalene-d6 (CAS CATO-C4X-180918)
- Adapalene Impurity 12 (CAS 1063712-23-1)
- Adapalene Impurity 13 (CAS 106685-43-2)
- Adapalene (CAS 106685-40-9)
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