Dotinurad Impurity 171 CAS 50910-59-3
| CAS No. | 50910-59-3 |
| Molecular Formula | C7H9NO3S |
| Molecular Weight | 187.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Dotinurad Impurity 171 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 187.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 process- or degradation-related impurity, Dotinurad Impurity 171 (CAS 50910-59-3, C7H9NO3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 171 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 | C7H9NO3S |
| Molecular Weight | 187.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dotinurad Standards
- Dotinurad Impurity 188 (CAS CATO-C4X-2494188)
- Dotinurad Impurity 168 (CAS CATO-C4X-2494168)
- Dotinurad Impurity 98 (CAS CATO-C4X-249498)
- Dotinurad Impurity 99 (CAS CATO-C4X-249499)
- Dotinurad Impurity 154 (CAS CATO-C4X-2494154)
- Dotinurad Impurity 258 (CAS CATO-C4X-2494258)
- Dotinurad Impurity 81 (CAS 82848-00-8)
- Dotinurad Impurity 257 (CAS CATO-C4X-2494257)
Recommended Standards
- Benzenesulfonic Impurity 4 (CAS 55034-26-9)
- Timolol EP Impurity D (CAS 30165-97-0)
- 1,2-Dichlorotetramethyldisilane (CAS 4342-61-4)
- Celecoxib Impurity 45 (CAS 90824-33-2)
- Osimertinib Impurity 56 (CAS CATO-C4X-204556)
- Hydroxychloroquine Impurity 12 (CAS CATO-C4X-183512)
- Phenoxymethylpenicillin EP Impurity F（SS） (CAS CATO-C4X-21269)
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- tert-Butyl 3-(hydroxymethyl)-3-methylmorpholine-4-carboxylate (CAS 1374654-00-8)
- (4R)-1-Methyl-4-propyl-L-proline-d3 Methyl Ester (CAS 1246815-09-7)
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- N-(3,5-dimethylphenyl)-2-((3-ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1040660-17-0)
- Tau Peptide (294-305) (human) trifluoroacetate salt (CAS 1428135-29-8)
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