Pranoprofen Impurity 33 CAS CATO-C4X-181133
| CAS No. | CATO-C4X-181133 |
| Molecular Formula | C10H13NO3 |
| Molecular Weight | 195.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Pranoprofen Impurity 33 (C10H13NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a process- or degradation-related impurity, Pranoprofen Impurity 33 (CAS CATO-C4X-181133, C10H13NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 certified reference material (CRM), Pranoprofen Impurity 33 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 | C10H13NO3 |
| Molecular Weight | 195.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Pranoprofen Standards
- Pranoprofen Impurity 53 (CAS 6537-46-8)
- Pranoprofen Impurity 79 (CAS CATO-C4X-181179)
- Pranoprofen Impurity N2 (CAS 6722-09-4)
- Pranoprofen Impurity 36 (CAS 261-27-8)
- Pranoprofen Impurity 8 (CAS 639857-68-4)
- Pranoprofen Impurity 82 (CAS CATO-C4X-181182)
- Pranoprofen Impurity 75 (CAS CATO-C4X-181175)
- Pranoprofen Impurity 52 (CAS 35620-71-4)
Recommended Standards
- Indobufen Impurity 83 (CAS CATO-C4X-179283)
- Epinephrine /Adrenaline Impurity 129 (CAS CATO-C4X-1849129)
- Indobufen Impurity 2 (CAS 881650-49-3)
- Dopamine Impurity 18 (CAS 5663-56-9)
- Fenbufen EP Impurity A (CAS 17589-68-3)
- Abemaciclib Impurity 145 (CAS CATO-C4X-2937145)
- Argatroban Impurity 131 (CAS CATO-C4X-1007131)
- 4-(2-Ethylphenoxy)-2-(trifluoromethyl)aniline (CAS 946698-09-5)
- 8-Methoxy-5H-pyrimido[5,4-b]indol-4-ol (CAS 98805-78-8)
- 1-Chloromethyl-1 H -pyrazole-4-carboxylic acid methyl ester (CAS 860807-43-8)
- 1-((4-Chlorophenyl)thio)-3-methylbutan-2-one (CAS 51828-57-0)
- Argatroban Impurity 18 (CAS CATO-C4X-100718)
- 4-(Difluoromethyl)-2-methoxy-5-(trifluoromethoxy)-3-(trifluoromethyl)pyridine (CAS 1805099-00-6)
- Semaglutide impurity 72 (CAS CATO-C4X-222672)
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