Polaprezinc Impurity 38 CAS CATO-C4X-182138
| CAS No. | CATO-C4X-182138 |
| Molecular Formula | C17H16N4O5 |
| Molecular Weight | 356.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Polaprezinc Impurity 38 (CAS CATO-C4X-182138), a pharmacopoeial impurity reference standard (molecular formula C17H16N4O5, MW 356.33 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Polaprezinc Impurity 38 (C17H16N4O5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Polaprezinc Impurity 38 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 | C17H16N4O5 |
| Molecular Weight | 356.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| 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 24 (CAS CATO-C4X-182124)
- 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
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- 3-Methyl-5-oxo-5-(2,3,5,6-tetramethylphenyl)pentanoic acid (CAS 951893-74-6)
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- Vortioxetine Impurity 67 (CAS CATO-C4X-105667)
- Salbutamol Impurity 64 (CAS CATO-C4X-117664)
- 5-(2,3-Dihydro-1H-inden-5-yl)-2-methylpyrazolo[1,5-a]pyrimidine (CAS 866050-21-7)
- ((4-Chlorobutoxy)methyl)benzene (CAS 125340-68-3)
- CGMP Dependent Kinase Inhibitor Peptide (CAS 82801-73-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com