Ibuprofen Impurity 67 CAS CATO-C4X-108267
| CAS No. | CATO-C4X-108267 |
| Molecular Formula | C26H34O5 |
| Molecular Weight | 426.55 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ibuprofen Impurity 67 (C26H34O5) contains a steroid core, a hydroxyl group, an ether linkage. 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 process- or degradation-related impurity, Ibuprofen Impurity 67 (CAS CATO-C4X-108267, C26H34O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Ibuprofen Impurity 67 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 | C26H34O5 |
| Molecular Weight | 426.55 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Ibuprofen Standards
- Ibuprofen Methocarbamol Ester (Mixture of Diastereomers) (CAS 111632-17-8)
- Ibuprofen Impurity 44 (CAS CATO-C4X-108244)
- Ibuprofen Impurity 45 (CAS CATO-C4X-108245)
- Ibuprofen Impurity 57 (CAS CATO-C4X-108257)
- Ibuprofen Impurity 156 (CAS CATO-C4X-1082156)
- Ibuprofen EP Impurity G (Mixture of cis and trans Isomers) (CAS 1391054-15-1)
- Ibuprofen EP Impurity G (CAS 2575516-43-5)
- Ibuprofen Impurity 102 (CAS CATO-C4X-1082102)
Recommended Standards
- SB-269652, >98% (HPLC) (CAS 215802-15-6)
- Adapalene Impurity 5 (CAS 106685-41-0)
- N'-(1-([1,1'-Biphenyl]-4-yl)ethylidene)-2-(4-benzylpiperazin-1-yl)acetohydrazide (CAS 303107-60-0)
- Latanoprost Impurity 15 (CAS CATO-C4X-194115)
- Clopidogrel Impurity 13 (CAS 141109-14-0)
- Carglumic Acid impurity 12 (CAS CATO-C4X-207912)
- Polaprezinc impurity 30 (CAS 85460-75-9)
- Benzyl 4-ureidopiperidine-1-carboxylate (CAS 1427460-41-0)
- Methyl 4-(4-chlorophenyl)-2-(2,6-dichlorophenyl)-4-oxobutanoate (CAS 344280-86-0)
- Brexpiprazole Impurity 144 (CAS CATO-C4X-1131144)
- 2-Bromo-N-(4-chlorophenyl)benzenesulfonamide (CAS 1183450-05-6)
- 1-((Neopentylamino)methyl)cyclohexan-1-ol (CAS 1250915-07-1)
- 3-Hydrazinotetrahydrothiophene-1,1-dioxide Hydrochloride (CAS 1004-15-5)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
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