Loxoprofen Impurity 71 CAS CATO-C4X-148871
| CAS No. | CATO-C4X-148871 |
| Molecular Formula | C15H16O3 |
| Molecular Weight | 244.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Loxoprofen Impurity 71 (CAS CATO-C4X-148871) is a certified pharmaceutical impurity reference standard with the molecular formula C15H16O3 and a molecular weight of 244.29 g/mol.
Loxoprofen Impurity 71 (C15H16O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Loxoprofen Impurity 71 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 | C15H16O3 |
| Molecular Weight | 244.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Loxoprofen Standards
- Loxoprofen impurity 103 (CAS CATO-C4X-1488103)
- Loxoprofen Impurity 50 (CAS 111128-12-2)
- Loxoprofen Impurity 67 (CAS 32454-35-6)
- Loxoprofen Impurity 147 (CAS CATO-C4X-1488147)
- Loxoprofen Impurity 148 (CAS CATO-C4X-1488148)
- Loxoprofen Impurity 154 (CAS 90319-74-7)
- Loxoprofen Impurity 155 (CAS 90319-73-6)
- Loxoprofen Impurity 156 (CAS 83599-42-2)
Recommended Standards
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- Kukoamine Impurity 11 (CAS CATO-C4X-229611)
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