Dotinurad Impurity 167 CAS CATO-C4X-2494167
| CAS No. | CATO-C4X-2494167 |
| Molecular Formula | C16H14ClNO5S |
| Molecular Weight | 367.80 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Dotinurad Impurity 167 (C16H14ClNO5S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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. 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 supplies Dotinurad Impurity 167 (CAS CATO-C4X-2494167), a pharmacopoeial impurity reference standard (molecular formula C16H14ClNO5S, MW 367.80 g/mol) used for the identification and quantification of trace impurities in APIs.
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 manufactures Dotinurad Impurity 167 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 | C16H14ClNO5S |
| Molecular Weight | 367.80 g/mol |
| Purity | 95% |
| Storage | Store at 2-8°C, 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 204 (CAS CATO-C4X-2494204)
- Dotinurad Impurity 217 (CAS CATO-C4X-2494217)
- Dotinurad Impurity 177 (CAS CATO-C4X-2494177)
- Dotinurad Impurity 232 (CAS CATO-C4X-2494232)
- Dotinurad Impurity 5 (CAS 1285572-89-5)
- Dotinurad Impurity 161 (CAS CATO-C4X-2494161)
- Dotinurad Impurity 222 (CAS CATO-C4X-2494222)
- Dotinurad Impurity 1 (CAS 1285573-44-5)
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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