Pranoprofen Impurity 7 CAS CATO-C4X-18117
| CAS No. | CATO-C4X-18117 |
| Molecular Formula | C15H11NO4 |
| Molecular Weight | 269.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Pranoprofen Impurity 7 (CAS CATO-C4X-18117, C15H11NO4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Pranoprofen Impurity 7 (C15H11NO4) contains a flavonoid core, an amide group, 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H11NO4 |
| Molecular Weight | 269.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Pranoprofen Standards
- Pranoprofen Impurity 2 (CAS 52549-19-6)
- Pranoprofen Impurity 66 (CAS CATO-C4X-181166)
- Pranoprofen Impurity 12 (CAS CATO-C4X-181112)
- Pranoprofen Impurity 5 (CAS 145986-74-9)
- Pranoprofen Impurity 9 (CAS CATO-C4X-18119)
- Pranoprofen Impurity 14 (CAS CATO-C4X-181114)
- Pranoprofen Impurity 15 (CAS CATO-C4X-181115)
- Pranoprofen Impurity 21 (CAS CATO-C4X-181121)
Recommended Standards
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- Pretomanid Impurity 20 (CAS CATO-C4X-260620)
- Benzoic Acid impurity 6 (CAS 2497-91-8)
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