Dotinurad Impurity 199 CAS CATO-C4X-2494199
| CAS No. | CATO-C4X-2494199 |
| Molecular Formula | C16H15Cl2NO5S |
| Molecular Weight | 404.27 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.
As a process- or degradation-related impurity, Dotinurad Impurity 199 (CAS CATO-C4X-2494199, C16H15Cl2NO5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C16H15Cl2NO5S, Dotinurad Impurity 199 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 404.27 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H15Cl2NO5S |
| Molecular Weight | 404.27 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dotinurad Standards
- Dotinurad Impurity 223 (CAS CATO-C4X-2494223)
- Dotinurad Impurity 234 (CAS CATO-C4X-2494234)
- Dotinurad Impurity 235 (CAS CATO-C4X-2494235)
- Dotinurad Impurity 216 (CAS CATO-C4X-2494216)
- Dotinurad Impurity 240 (CAS CATO-C4X-2494240)
- Dotinurad Impurity 196 (CAS CATO-C4X-2494196)
- Dotinurad Impurity 205 (CAS CATO-C4X-2494205)
- Dotinurad Impurity 231 (CAS CATO-C4X-2494231)
Recommended Standards
- N-(3,5-dichlorophenyl)-1-(3-nitro-4-(pyridin-2-ylthio)phenyl)methanimine (CAS 297150-28-8)
- (2S,4S)-1-(tert-Butoxycarbonyl)-4-(2,4-dichloro-3,5-dimethylphenoxy)-2-pyrrolidinecarboxylic acid (CAS 1217856-90-0)
- 3-(2,5-Dichloropyrimidin-4-yl)-1-(phenylsulfonyl)-1H-indole (CAS 882562-40-5)
- Lesinurad Impurity 33 (CAS 1533519-94-6)
- Lomefloxacin impurity 23 (CAS CATO-C4X-207323)
- Efinaconazole Impurity 11 (CAS CATO-C4X-124311)
- Enalapril EP Impurity A Maleate (CAS 1356932-13-2)
- 2-Amino-4-(3-bromophenyl)pyrimidine-5-carboxylic acid (CAS 1820613-44-2)
- 5-Oxo-5H-thiazolo[3,2-a]pyrimidine-7-carboxylic acid (CAS 890092-89-4)
- Minodronic Impurity 6 (CAS 114736-25-3)
- (2-Bromophenyl)(4-(methylthio)phenyl)methanone (CAS 951888-33-8)
- rac Pholedrine-d3 (1.0mg/ml in methanol) (CAS 1286498-19-8)
- 1-(4-Chlorobenzoyl)-5-oxo-N,N-dipropylpyrrolidine-2-carboxamide (CAS 85760-87-8)
- D-γ-Glu20-Side-Tirzepatide (CAS CATO-CPTD788929)
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