Polaprezinc impurity 24 CAS CATO-C4X-182124
| CAS No. | CATO-C4X-182124 |
| Molecular Formula | C17H16N4O5 |
| Molecular Weight | 356.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Polaprezinc impurity 24 (CAS CATO-C4X-182124) is a certified pharmaceutical impurity reference standard with the molecular formula C17H16N4O5 and a molecular weight of 356.33 g/mol.
Polaprezinc impurity 24 (C17H16N4O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C17H16N4O5 |
| Molecular Weight | 356.33 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Polaprezinc Standards
- Polaprezinc Impurity 22 (CAS CATO-C4X-182122)
- Polaprezinc Impurity 38 (CAS CATO-C4X-182138)
- S-Polaprezinc Impurity 8 (CAS 7389-97-1)
- S-Polaprezinc Impurity 11 (CAS CATO-C4X-182111)
- Polaprezinc impurity 36 (CAS CATO-C4X-182136)
- Polaprezinc impurity 27 (CAS CATO-C4X-182127)
- Polaprezinc (CAS 107667-60-7)
- Polaprezinc Impurity 18 (CAS CATO-C4X-182118)
Recommended Standards
- CAS 70610-26-3 (CAS 70610-26-3)
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- Tetraisopropyl vinylidenediphosphonate (CAS 48074-47-1)
- Dapoxetine Impurity 95 (CAS CATO-C4X-143995)
- Esomeprazole Impurity 136 (CAS 2561418-28-6)
- Cefdinir Impurity 59 (CAS CATO-C4X-121059)
- Methyl 3-(4-cyano-1H-pyrrole-2-carboxamido)propanoate (CAS 1706464-76-7)
- 1-(Bromomethyl)-1-(difluoromethyl)cyclobutane (CAS 2080412-63-9)
- N-(3,5-Difluorobenzyl)-1-(1-(2,2-difluoroethyl)-1H-pyrazol-3-yl)methanamine hydrochloride (CAS 1856050-07-1)
- (2E)-3-{4-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-N-(2-methylphenyl)prop-2-enamide (CAS 477870-82-9)
- 4-((Dimethylamino)methylene)oxazol-5(4H)-one (CAS 709619-59-0)
- (3-Ethoxy-4-methoxybenzyl)(1-ethylpropyl)amine (CAS 418778-20-8)
- Insulin Degludec Impurity 20 (CAS CATO-C4X-215720)
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