Dotinurad Impurity 201 CAS CATO-C4X-2494201
| CAS No. | CATO-C4X-2494201 |
| Molecular Formula | C23H18Cl2N2O6S2 |
| Molecular Weight | 553.43 g/mol |
| 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 Dotinurad Impurity 201 (CAS CATO-C4X-2494201), a pharmacopoeial impurity reference standard (molecular formula C23H18Cl2N2O6S2, MW 553.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Dotinurad Impurity 201 (C23H18Cl2N2O6S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 553.43 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Dotinurad Impurity 201 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 | C23H18Cl2N2O6S2 |
| Molecular Weight | 553.43 g/mol |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Dotinurad Standards
- Dotinurad Impurity 200 (CAS CATO-C4X-2494200)
- Dotinurad Impurity 250 (CAS CATO-C4X-2494250)
- Dotinurad Impurity 92 (CAS CATO-C4X-249492)
- Dotinurad Impurity 18 (CAS CATO-C4X-249418)
- Dotinurad Impurity 262 (CAS CATO-C4X-2494262)
- Dotinurad Impurity 113 (CAS CATO-C4X-2494113)
- Dotinurad Impurity 253 (CAS CATO-C4X-2494253)
- Dotinurad Impurity 158 (CAS CATO-C4X-2494158)
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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
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com