Dotinurad Impurity 197 CAS CATO-C4X-2494197
| CAS No. | CATO-C4X-2494197 |
| Molecular Formula | C16H12Cl3NO4S |
| Molecular Weight | 420.69 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 420.69 g/mol gives Dotinurad Impurity 197 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Dotinurad Impurity 197 (CAS CATO-C4X-2494197) is a certified pharmaceutical impurity reference standard with the molecular formula C16H12Cl3NO4S and a molecular weight of 420.69 g/mol.
Based on its molecular formula C16H12Cl3NO4S, Dotinurad Impurity 197 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 420.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), Dotinurad Impurity 197 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 | C16H12Cl3NO4S |
| Molecular Weight | 420.69 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dotinurad Standards
- Dotinurad Impurity 75 (CAS 24526-98-5)
- Dotinurad Impurity 8 (CAS 1285573-40-1)
- Dotinurad Impurity 237 (CAS CATO-C4X-2494237)
- Dotinurad Impurity 34 (CAS CATO-C4X-249434)
- Dotinurad Impurity 23 (CAS CATO-C4X-249423)
- Dotinurad Impurity 70 (CAS CATO-C4X-249470)
- Dotinurad Impurity 236 (CAS CATO-C4X-2494236)
- Dotinurad Impurity 186 (CAS CATO-C4X-2494186)
Recommended Standards
- 5-Amino-1-(4-bromobenzyl)-N-(4-chlorobenzyl)-1H-1,2,3-triazole-4-carboxamide (CAS 899981-27-2)
- 4-Chloro-6-(6-(trifluoromethyl)pyridin-2-yl)-N-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazin-2-amine (CAS 1446507-68-1)
- 4-(2-Bromophenyl)-N-(2-chlorophenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxamide (CAS 423153-14-4)
- (3-Chloro-5-(trifluoromethyl)pyridin-2-yl)(1-(4-(trifluoromethyl)phenyl)-1H-1,2,3-triazol-4-yl)methanone (CAS 882747-45-7)
- Apixaban Impurity 57 (CAS CATO-C4X-108857)
- Entecavir Impurity 87 (CAS CATO-C4X-107787)
- Peramivir impurity 139 (CAS CATO-C4X-1833139)
- Nintedanib Impurity 161 (CAS 98953-48-1)
- Methyl 5-(1-ethyl-5-methyl-1H-pyrazole-3-carbonyl)furan-2-carboxylate (CAS 1399662-54-4)
- tert-Butyl piperazine-1-carboxylate oxalate (CAS 57260-72-7)
- 3-(3,5-Dimethylpyrazol-1-yl)benzonitrile (CAS 1155066-35-5)
- 2,4-Dichloro-6-(phenylthio)pyrimidine-5-carbaldehyde (CAS 90825-52-8)
- 1-(2-Naphthylsulfonyl)-5-(trifluoromethyl)-2,3-dihydro-1H-1,4-diazepine (CAS 439112-04-6)
- Semaglutide Impurity 3 (CAS CATO-C4X-22263)
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