Nafamostat Impurity 9 CAS CATO-C4X-13329
| CAS No. | CATO-C4X-13329 |
| Molecular Formula | C20H17N3O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Nafamostat Impurity 9 (CAS CATO-C4X-13329), a pharmacopoeial impurity reference standard (molecular formula C20H17N3O4CH4O3S, MW 459.47 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Nafamostat Impurity 9 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 459.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), Nafamostat Impurity 9 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 | C20H17N3O4 CH4O3S |
| Molecular Weight | 459.47 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Nafamostat Standards
- Nafamostat Impurity 61 (CAS 1026613-65-9)
- Nafamostat impurity 110 (CAS 107490-62-0)
- Nafamostat Impurity 65 (CAS 107490-62-0（free base）)
- Nafamostat Impurity N3 (CAS 115325-88-7)
- Nafamostat Impurity 26 (CAS 1192026-58-6)
- Nafamostat Impurity 63 (CAS 121714-82-7)
- Nafamostat Impurity 37 (CAS 122228-09-5)
- Nafamostat Impurity 35 (CAS 130200-58-7)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com