Ibuprofen Impurity 79 CAS 51146-57-7
| CAS No. | 51146-57-7 |
| Molecular Formula | C13H18O2 |
| Molecular Weight | 206.28 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ibuprofen Impurity 79 (CAS 51146-57-7), a pharmacopoeial impurity reference standard (molecular formula C13H18O2, MW 206.28 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Ibuprofen Impurity 79 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 206.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO manufactures Ibuprofen Impurity 79 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H18O2 |
| Molecular Weight | 206.28 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
Related Ibuprofen Standards
- (S)-Ibuprofen EP Impurity B (CAS 404354-76-3)
- Ibuprofen (CAS 15687-27-1)
- Ibuprofen EP Impurity A (CAS 66622-47-7)
- Ibuprofen Impurity 145 (CAS 69363-33-3)
- Ibuprofen EP Impurity A (CAS CATO-C4X-1082147)
- Ibuprofen EP Impurity O (CAS 64451-76-9)
- Ibuprofen Impurity 151 (CAS CATO-C4X-1082151)
- Ibuprofen EP Impurity B (CAS 3585-49-7)
Recommended Standards
- Ibuprofen Impurity 78 (CAS 51146-56-6)
- Dexmedetomidine Impurity 45 (CAS CATO-C4X-123045)
- Ibuprofen EP Impurity F (CAS 65322-85-2)
- Dexmedetomidine Impurity 46 (CAS CATO-C4X-123046)
- Nabumetone impurity 30 (CAS 3003868-26-3)
- Sildenafil Impurity 66 (CAS 51409-86-0)
- Crizotinib impurity 33 (CAS CATO-C4X-102533)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com