Loxoprofen impurity 93 CAS CATO-C4X-148893
| CAS No. | CATO-C4X-148893 |
| Molecular Formula | C26H28O7 |
| Molecular Weight | 452.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Loxoprofen impurity 93 (CAS CATO-C4X-148893), a pharmacopoeial impurity reference standard (molecular formula C26H28O7, MW 452.50 g/mol) used for the identification and quantification of trace impurities in APIs.
Loxoprofen impurity 93 (C26H28O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Loxoprofen impurity 93 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 | C26H28O7 |
| Molecular Weight | 452.50 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Loxoprofen Standards
- Loxoprofen Impurity 47 (CAS CATO-C4X-148847)
- Loxoprofen impurity 101 (CAS CATO-C4X-1488101)
- Loxoprofen impurity 105 (CAS CATO-C4X-1488105)
- Loxoprofen impurity 106 (CAS CATO-C4X-1488106)
- Loxoprofen Impurity 143 (CAS CATO-C4X-1488143)
- Loxoprofen Impurity 110 (CAS CATO-C4X-1488110)
- Loxoprofen impurity 126 (CAS CATO-C4X-1488126)
- Loxoprofen Impurity 46 (Mixture of Isomers) (CAS CATO-C4X-148846)
Recommended Standards
- 2-(3,4-Dihydroxy-phenyl)-5,7-dihydroxy-3-methoxy-8-((E)-3-methyl-but-2-enyl)-6-(3-methyl-but-2-enyl)-1-benzopyran-4-one 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-methoxy-6,8-bis(3-methylbut-2-enyl)chromen-4-one 99217-70-6 Broussoflavanol B (CAS 99217-70-6)
- Cefcapene Impurity 80 (CAS CATO-C4X-182480)
- Methyl 2-(2-((4-(2-fluorophenyl)piperazin-1-yl)sulfonyl)-4,5-dimethoxyphenyl)acetate (CAS 497060-59-0)
- Bimolane (CAS 74550-97-3)
- Caspofungin Pneumocandin B0 Impurity (CAS 135575-42-7)
- N-Nitroso Vilazodone Impurity 14 (CAS CATO-C4X-135514)
- Ticagrelor impurity 28 (CAS 2205903-73-5)
- Ethyl 4-[(4-methylphenyl)sulfanyl]-2-phenyl-5-pyrimidinecarboxylate (CAS 477854-52-7)
- tert-Butyl 4-(1-aminoethyl)-1H-imidazole-1-carboxylate (CAS 317830-79-8)
- 2-methylterephthalaldehyde (CAS 27587-17-3)
- 1-Iminohexahydro-1lambda6-thiopyran-4-carbonitrile 1-oxide (CAS 2232916-50-4)
- 1-Ethyl-N-(tetrahydro-2h-thiopyran-4-yl)-1h-pyrazol-4-amine (CAS 1155066-29-7)
- 2-Bromo-6-ethylbenzoic acid (CAS 1261454-57-2)
- Allo-D-Ile27-Tirzepatide (CAS CATO-CPTD788961)
Why CATO?
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