Dotinurad Impurity 250 CAS CATO-C4X-2494250
| CAS No. | CATO-C4X-2494250 |
| Molecular Formula | C23H13Cl4NO5S |
| Molecular Weight | 557.23 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.
Dotinurad Impurity 250 (CAS CATO-C4X-2494250) is a certified pharmaceutical impurity reference standard with the molecular formula C23H13Cl4NO5S and a molecular weight of 557.23 g/mol.
Based on its molecular formula C23H13Cl4NO5S, Dotinurad Impurity 250 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 557.23 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.
As a certified reference material (CRM), Dotinurad Impurity 250 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 | C23H13Cl4NO5S |
| Molecular Weight | 557.23 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dotinurad Standards
- Dotinurad Impurity 92 (CAS CATO-C4X-249492)
- Dotinurad Impurity 201 (CAS CATO-C4X-2494201)
- Dotinurad Impurity 113 (CAS CATO-C4X-2494113)
- Dotinurad Impurity 158 (CAS CATO-C4X-2494158)
- Dotinurad Impurity 200 (CAS CATO-C4X-2494200)
- Dotinurad Impurity 18 (CAS CATO-C4X-249418)
- Dotinurad Impurity 262 (CAS CATO-C4X-2494262)
- Dotinurad Impurity 253 (CAS CATO-C4X-2494253)
Recommended Standards
- N-Methylperfluorooctanesulfonamidoethanol (CAS 24448-09-7)
- 2-(3-Chloro-2-((3-cyano-2-hydroxypropyl)amino)-5-(trifluoromethyl)pyridin-4-yl)-4-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)amino)-3-hydroxybutanenitrile (CAS 338966-48-6)
- AM 281 (CAS 202463-68-1)
- Methyl 6-[(2E)-2-{[(2,3-dichlorophenyl)methoxy]imino}ethyl]-2-oxo-3-[3-(trifluoromethyl)benzamido]-2H-pyran-5-carboxylate (CAS 341966-44-7)
- CAS CATO-C3D-1026 (CAS CATO-C3D-1026)
- Ketoconazole Impurity 7 (CAS 172032-21-2)
- Biotin impurity 24 (CAS CATO-C4X-156324)
- (E)-ethyl 3-(2-chloro-4-(ethylamino)pyrimidin-5-yl)acrylate (CAS 2449269-93-4)
- (E)-5-(benzo[d][1,3]dioxol-5-ylmethylene)-2-(4-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)-3,5-dihydro-4H-imidazol-4-one (CAS 865659-46-7)
- (R)-5-(4-Hydroxyphenyl)-5-ethylhydantoin (CAS 65567-33-1)
- 3-nitro-[1,2,4]triazolo[5,1-c][1,2,4]triazin-4(8H)-one, sodium salt (CAS 76434-85-0)
- Methyl 6-(chloromethyl)-1,4-dimethyl-1h-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 1375474-41-1)
- Pisolithin B (CAS 13244-78-5)
- Liraglutide Impurity 22 (CAS 536721-25-2)
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