Ketoprofen Impurity 25 CAS 63444-57-5
| CAS No. | 63444-57-5 |
| Molecular Formula | C15H12O |
| Molecular Weight | 208.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C15H12O, Ketoprofen Impurity 25 contains 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 208.26 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).
As a process- or degradation-related impurity, Ketoprofen Impurity 25 (CAS 63444-57-5, C15H12O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
As a certified reference material (CRM), Ketoprofen Impurity 25 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 | C15H12O |
| Molecular Weight | 208.26 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Ketoprofen Standards
- Ketoprofen Impurity 23 (CAS 1092395-13-5)
- Ketoprofen Impurity 15 (CAS 66067-43-4)
- Ketoprofen Impurity 48 (CAS 781-35-1)
- Ketoprofen Impurity 47 (CAS 620-86-0)
- Ketoprofen Impurity 58 (CAS CATO-C4X-147158)
- Ketoprofen Impurity 38 (CAS 24131-07-5)
- Ketoprofen Impurity 24 (CAS 872091-85-5)
- Ketoprofen EP Impurity I (CAS 21288-34-6)
Recommended Standards
- Chlorpromazine Impurity 7 (CAS 28867-76-7)
- Amitriptyline EP Impurity A (CAS 1210-35-1)
- Itopride Impurity 11 (CAS 3421-72-5)
- Cyclobenzaprine Impurity 6 (CAS 10354-00-4)
- Penehyclidine Impurity 27 (CAS 860804-20-2)
- Solifenacin EP Impurity A D-(-)-tartrate (CAS 869884-00-4)
- Imatinib EP Impurity F (CAS 152460-10-1)
- 3-(tert-Butyl-dimethyl-silanyloxymethyl)-phenol (CAS 96013-78-4)
- 2,7-Dimethyl-5-oxo-5H-chromeno[2,3-b]pyridine-3-carboxylic acid (CAS 338751-34-1)
- Saxagliptin Impurity 24 (CAS 841302-24-7(free base))
- (S)-5-(Diphenyl((trimethylsilyl)oxy)methyl)-2-(perfluorophenyl)-6,7-dihydro-5H-pyrrolo[2,1-c][1,2,4]triazol-2-ium tetrafluoroborate (CAS 1352756-09-2)
- 6-chloro-8-prop-1-ynyl-2H-chromene-3-carboxylic acid (CAS 2625769-31-3)
- 2-[(3,5-difluorobenzyl)thio]pyridinium-1-olate (CAS 259132-17-7)
- (Asn5)-Delta-Sleep Inducing Peptide (H-2555.0005) (CAS 80064-67-1)
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