Ibuprofen Impurity 158 CAS CATO-C4X-1082158
| CAS No. | CATO-C4X-1082158 |
| Molecular Formula | C38H58O9 |
| Molecular Weight | 658.86 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C38H58O9, Ibuprofen Impurity 158 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 658.86 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).
CATO supplies Ibuprofen Impurity 158 (CAS CATO-C4X-1082158), a pharmacopoeial impurity reference standard (molecular formula C38H58O9, MW 658.86 g/mol) used for the identification and quantification of trace impurities in APIs.
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 158 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 | C38H58O9 |
| Molecular Weight | 658.86 g/mol |
| 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 Impurity 49 (CAS 1161014-75-0)
- Ibuprofen impurity 144 (CAS CATO-C4X-1082144)
- Ibuprofen impurity 125 (CAS CATO-C4X-1082125)
- 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 67 (CAS CATO-C4X-108267)
Recommended Standards
- 26-(4-Nonylphenoxy)-3,6,9,12,15,18,21,24-octaoxahexacosyl acetate (CAS 67845-40-3)
- Ultraviolet Absorbent Uv-360 (CAS 103597-45-1)
- 2,2-difluoro-2-[(2R,3R,4S,5R,6R)-3,4,5-tribenzyloxy-6-(benzyloxymethyl)-2-hydroxy-tetrahydropyran-2-yl]acetic acid (CAS 953423-53-5)
- H-Lys-Lys-Lys-Lys-Lys-OH (CAS 19431-21-1)
- Etizolam Impurity 4 (CAS 110753-14-5)
- Racecadotril Impurity 20 (CAS CATO-C4X-110620)
- Albendazole impurity 34 (CAS CATO-C4X-153534)
- 2,6-Difluorobenzo[d]thiazole (CAS 27484-69-1)
- N-(4-(6-chloropyridazin-3-yl)phenyl)methanesulfonamide (CAS 1262619-30-6)
- Ethoxy(methyl)diphenylsilane (CAS 1825-59-8)
- Tert-butyl2-(p-tolylsulfonyloxymethyl)-6,7-dihydro-4h-pyrazolo[1,5-a]pyrazine-5-carboxylate (CAS 2306274-60-0)
- Tributyltin Acrylate (CAS 13331-52-7)
- 7-oxabicyclo[2.2.1]heptan-2-ol (CAS 253876-00-5)
- Pancreatic Polypeptide (1-17)-(Ala31,Aib32)-Neuropeptide Y (18-36) (human) trifluoroacetate salt (CAS 313988-70-4)
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