Ketoprofen Impurity 14 CAS 59960-32-6
| CAS No. | 59960-32-6 |
| Molecular Formula | C16H16O3 |
| Molecular Weight | 256.30 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.
As a process- or degradation-related impurity, Ketoprofen Impurity 14 (CAS 59960-32-6, C16H16O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, Ketoprofen Impurity 14 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 256.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Ketoprofen Impurity 14 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 | C16H16O3 |
| Molecular Weight | 256.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
Related Ketoprofen Standards
- Ketoprofen Impurity 111 (CAS CATO-C4X-1471111)
- (S)-Ketoprofen-d3 (CAS 2747914-77-6)
- Ketoprofen D3, R-isomer (CAS CATO-C4X-147196)
- rac Ketoprofen-d3 (CAS 159490-55-8)
- rac Ketoprofen Amide-13C,d3 (CAS 1346603-74-4)
- Ketoprofen-13C-d3 (CAS 1189508-77-7)
- (R)-(-)-Ketoprofen-13C,d3 (CAS 1329496-52-7)
- (±)-Ketoprofen-d4 (propionic-d4 acid) (CAS 1219805-29-4)
Recommended Standards
- Telmisartan Impurity 91 (CAS CATO-C4X-135991)
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- Naproxen Impurity 45 (CAS CATO-C4X-170845)
- Sulfasalazine EP Impurity I (CAS 1310803-27-0)
- Vericiguat Impurity 41 (CAS CATO-C4X-289641)
- Lornoxicam impurity 69 (CAS CATO-C4X-201669)
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- 2-Bromo-6-(tert-butylamino)benzonitrile (CAS 1365272-90-7)
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- (E)-3-(5-Nitrocyclohex-1-en-1-yl)acrylic acid (CAS 899809-64-4)
- N-benzyl-N-methylpiperidin-4-amine (CAS 76167-62-9)
- Gastric Inhibitory Polypeptide (1-30) amide (porcine) (CAS 134846-93-8)
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