Loxoprofen Impurity 69 CAS CATO-C4X-148869
| CAS No. | CATO-C4X-148869 |
| Molecular Formula | C15H18O5 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Loxoprofen Impurity 69 is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Loxoprofen Impurity 69 (CAS CATO-C4X-148869, C15H18O5Na) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Loxoprofen Impurity 69 (C15H18O5Na) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 certified reference material (CRM), Loxoprofen Impurity 69 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 | C15H18O5 2*Na |
| Molecular Weight | 301.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Loxoprofen Standards
- m-Loxoprofen (CAS 1026471-88-4)
- o-Loxoprofen (Mixture of Diastereomers) (CAS 1027400-34-5)
- Loxoprofen Impurity 70 (CAS 1027957-36-3)
- Loxoprofen Impurity 57 (CAS 10386-81-9)
- Loxoprofen Impurity 51 (CAS 10472-24-9)
- Loxoprofen Impurity 3 (CAS 1091621-61-2)
- Loxoprofen Impurity 15(Mixture of Diastereomers) (CAS 1091621-62-3)
- Loxoprofen Impurity 25 (CAS 1091621-63-4)
Recommended Standards
- Sugammadex Impurity 65 (CAS CATO-C4X-190665)
- Safinamide impurity 6 (CAS 174756-44-6)
- Olanzapine Impurity 30 (CAS CATO-C4X-117830)
- Nafamostat Impurity 18 (CAS 52805-47-7)
- 2-[2-(2-Ethylphenoxy)ethyl]piperidinehydrochloride (CAS 1219949-29-7)
- 2-Bromo-3-chloro-6-(trifluoromethyl)pyridine (CAS 1211521-13-9)
- 4-(2-Amino-5-methylphenoxy)-N-methylpyridine-2-carboxamide (CAS 1153328-34-7)
- (5-Iodofuran-2-yl)methanamine (CAS 1158048-50-0)
- 2,2,4,4-Tetramethyl-5-(3-methylpent-4-en-1-yl)-1,3-dioxolane (CAS 634592-52-2)
- Semaglutide238 (CAS CATO-C4X-2226238)
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