Pranoprofen Impurity 59 CAS CATO-C4X-181159
| CAS No. | CATO-C4X-181159 |
| Molecular Formula | C15H11Cl2NO2 |
| Molecular Weight | 308.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 308.16 g/mol gives Pranoprofen Impurity 59 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Pranoprofen Impurity 59 (CAS CATO-C4X-181159, C15H11Cl2NO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Pranoprofen Impurity 59 (C15H11Cl2NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 308.16 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C15H11Cl2NO2 |
| Molecular Weight | 308.16 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Pranoprofen Standards
- Pranoprofen Impurity 41 (CAS CATO-C4X-181141)
- Pranoprofen Impurity 13 (CAS CATO-C4X-181113)
- Pranoprofen Impurity 3 (CAS CATO-C4X-18113)
- Pranoprofen Impurity 6 (CAS 143436-36-6)
- Pranoprofen Impurity 63 (CAS CATO-C4X-181163)
- Pranoprofen Impurity 24 (CAS CATO-C4X-181124)
- Pranoprofen Impurity 47 (CAS CATO-C4X-181147)
- Pranoprofen Impurity 76 (CAS CATO-C4X-181176)
Recommended Standards
- Dotinurad Impurity 123 (CAS 888731-24-6)
- Alprazolam impurity 27 (CAS CATO-C4X-146027)
- 2-Bromo-N-(1,3,5-trimethyl-1h-pyrazol-4-yl)benzamide (CAS 1007007-62-6)
- Alprazolam Impurity 26 (CAS CATO-C4X-146026)
- Sovateltide Impurity 1 (CAS CATO-C4X-34651)
- Hydrochlorothiazide Impurity 50 (CAS CATO-C4X-117750)
- Arbidol impurity 45 (CAS CATO-C4X-112945)
- 3,4,5-Trimethoxy-N-(2-methoxyethyl)-N-(4-phenyl-1,3-thiazol-2-yl)benzamide (CAS 461000-66-8)
- Ethyl 2-((4-(1-ethyl-3-methyl-1h-pyrazol-4-yl)-6-(trifluoromethyl)pyrimidin-2-yl)thio)acetate (CAS 1002535-18-3)
- 1-Bromo-4-(4-pentylcyclohexyl)benzene (CAS 153873-83-7)
- 2-(4-Chlorophenyl)-N-(2-nitrobenzyl)ethanamine (CAS 418780-23-1)
- Calcitriol Impurity 19 (CAS CATO-C4X-151019)
- 3-Fluoro-3-(fluoromethyl)azetidine (CAS 1466514-77-1)
- Semaglutide-d5 (CAS CATO-C4X-2226153)
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