Nafamostat Impurity 7 CAS 82955-98-4
| CAS No. | 82955-98-4 |
| Molecular Formula | C18H15N3O2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 401.44 g/mol gives Nafamostat Impurity 7 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Nafamostat Impurity 7 (CAS 82955-98-4), a pharmacopoeial impurity reference standard (molecular formula C18H15N3O2CH4O3S, MW 401.44 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Nafamostat Impurity 7 (C18H15N3O2CH4O3S) is characterized by a flavonoid core, an amide group, a sulfone 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 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).
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 manufactures Nafamostat Impurity 7 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 | C18H15N3O2 2*CH4O3S |
| Molecular Weight | 401.44 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| 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)
Recommended Standards
- Avatrombopag Impurity 14 (CAS CATO-C4X-223414)
- Ursodeoxycholic Acid impurity 103 (CAS CATO-C4X-1422103)
- Dobutamine Impurity 60 (CAS 63434-00-4)
- Methyl 2-(3-((3,5-dimethylphenyl)carbamoyl)-6-oxo-5,6-dihydropyridazin-1(4H)-yl)acetate (CAS 1260633-31-5)
- (S)-2-Amino-N-ethyl-N-(3-methoxybenzyl)propanamide (CAS 1353993-90-4)
- 5-Chloro-4-iodo-1H-pyrazole-3-carboxylic acid (CAS 1934253-05-0)
- Fmoc-p-azido-D-Phe-OH (CAS 1391586-30-3)
- Methyl 2-amino-5-fluoroisonicotinate (CAS 1380331-29-2)
- Polyoxyethylene sorbitan trioleate (CAS 927625-87-4)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
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