Polaprezinc impurity 31 CAS CATO-C4X-182131
| CAS No. | CATO-C4X-182131 |
| Molecular Formula | C8H6N2O |
| Molecular Weight | 146.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Polaprezinc impurity 31 (CAS CATO-C4X-182131) is a certified pharmaceutical impurity reference standard with the molecular formula C8H6N2O and a molecular weight of 146.15 g/mol.
Polaprezinc impurity 31 (C8H6N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; 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).
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.
Physical & Chemical Properties
| Molecular Formula | C8H6N2O |
| Molecular Weight | 146.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Polaprezinc Standards
- Polaprezinc impurity 32 (CAS CATO-C4X-182132)
- Polaprezinc impurity 30 (CAS 85460-75-9)
- Polaprezinc impurity 29 (CAS 21032-84-8)
- Polaprezinc Impurity 1 (CAS 5323-50-2)
- Polaprezinc Impurity 2 (CAS 17332-34-2)
- Polaprezinc Impurity 10 (CAS 3339-73-9)
- Polaprezinc Impurity 12 (CAS 19357-01-8)
- Polaprezinc impurity 26 (CAS CATO-C4X-182126)
Recommended Standards
- 849924-97-6 2-(1H-pyrazol-4-yl)pyrazine DTXSID90402771 (CAS 849924-97-6)
- N,N'-(ethane-1,2-diyl)bis(N-methylnitrous amide) (CAS 13256-12-7)
- CAS 705950-23-8 (CAS 705950-23-8)
- 2-hydroxyimino-2-phenylacetonitrile(Mixture of isomers) (CAS 825-52-5)
- Avibactam Impurity 54 (CAS 1383913-01-6)
- Landiolol Impurity 80 (CAS CATO-C4X-262180)
- Ticagrelor Impurity 137 (CAS 504-17-6)
- Flecainide acetate (CAS 99495-94-0)
- Ethyl 2-(2-fluoro-5-methylphenyl)acetate (CAS 1250638-04-4)
- 2-Fluoro-3-(trifluoromethyl)benzylamine (CAS 239135-49-0)
- 2,5-Difluoro-4-propoxybenzoic acid (CAS 2586127-09-3)
- Lifitegrast Impurity 37 (CAS 1194550-56-5)
- (Z)-1,4-Dimethoxy-1,4-dioxo-3-(pyridin-1-ium-1-yl)but-2-ene-2-thiolate (CAS 1321889-44-4)
- Insulin Degludec Impurity 13 (CAS CATO-C4X-215713)
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