S-Polaprezinc Impurity 8 CAS 7389-97-1
| CAS No. | 7389-97-1 |
| Molecular Formula | C17H16N4O5 |
| Molecular Weight | 356.33 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 356.33 g/mol gives S-Polaprezinc Impurity 8 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
S-Polaprezinc Impurity 8 (CAS 7389-97-1) is a certified pharmaceutical impurity reference standard with the molecular formula C17H16N4O5 and a molecular weight of 356.33 g/mol.
S-Polaprezinc Impurity 8 (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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
CATO manufactures S-Polaprezinc Impurity 8 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
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 |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 4 |
Related S Standards
- Polaprezinc Impurity 22 (CAS CATO-C4X-182122)
- Polaprezinc impurity 24 (CAS CATO-C4X-182124)
- Polaprezinc Impurity 38 (CAS CATO-C4X-182138)
- 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
- Baloxavir Marboxil Impurity 211 (CAS CATO-C4X-2108211)
- Cariprazine Impurity 1 (CAS 791778-53-5)
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- CAS 70610-26-3 (CAS 70610-26-3)
- Celecoxib Impurity 7(Hydroxy Celecoxib) (CAS 170571-00-3)
- Iopromide Impurity 12 (CAS CATO-C4X-183212)
- Lamivudine Impurity 41(2R,5S)Monomer (CAS 173829-09-9 (free base))
- (3-Cyclopentyl-5-cyclopropylphenyl)boronic acid (CAS 2225169-00-4)
- 4-Chloro-2-iodobenzenesulfonamide (CAS 271796-28-2)
- Phenytoin Impurity 24 (CAS CATO-C4X-186424)
- 3-Bromoimidazo[1,2-a]pyrimidine-2-carbonitrile (CAS 1823930-43-3)
- Methyl 3,5-dichloro-2-fluorophenylacetate (CAS 1803777-40-3)
- 2,3,3,3-Tetrafluoro-2-(1,1,2,3,3,3-hexafluoro-2-(perfluoropropoxy)propoxy)propan-1-ol (CAS 14548-74-4)
- Des-Gly34-Tirzepatide (CAS CATO-CPTD788940)
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