Dotinurad Impurity 258 CAS CATO-C4X-2494258
| CAS No. | CATO-C4X-2494258 |
| Molecular Formula | C8H7NO2S |
| Molecular Weight | 181.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Dotinurad Impurity 258 (CAS CATO-C4X-2494258), a pharmacopoeial impurity reference standard (molecular formula C8H7NO2S, MW 181.21 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Dotinurad Impurity 258 (C8H7NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 181.21 g/mol, it falls into the medium-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.
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 258 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 | C8H7NO2S |
| Molecular Weight | 181.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dotinurad Standards
- Dotinurad Impurity 154 (CAS CATO-C4X-2494154)
- Dotinurad Impurity 81 (CAS 82848-00-8)
- Dotinurad Impurity 168 (CAS CATO-C4X-2494168)
- Dotinurad Impurity 171 (CAS 50910-59-3)
- Dotinurad Impurity 188 (CAS CATO-C4X-2494188)
- Dotinurad Impurity 98 (CAS CATO-C4X-249498)
- Dotinurad Impurity 99 (CAS CATO-C4X-249499)
- Dotinurad Impurity 24 (CAS 4433-53-8)
Recommended Standards
- Sultamicillin Impurity 11 (CAS CATO-C4X-188611)
- Xanomeline impurity 48 (CAS CATO-C4X-330148)
- Sulbactam EP Impurity A (CAS 23315-18-6)
- L-Methionine Sulfone (CAS 7314-32-1)
- Ketorolac Impurity 21 (CAS CATO-C4X-166921)
- Cefminox Impurity 23 (CAS 74228-11-8)
- Omadacycline Impurity 31 (CAS CATO-C4X-285731)
- N-(methoxymethyl)-1-(trifluoromethyl)cyclopropane-1-carboxamide (CAS 1017789-65-9)
- n-(Piperidin-4-yl)pyridine-2-sulfonamide dihydrochloride (CAS 1233955-74-2)
- Pyrimidin-2-yl-D-alanine (CAS 1212102-70-9)
- tert-Butyl 6-oxo-3,4-dihydro-1H-pyrido[1,2-a]pyrazine-2(6H)-carboxylate (CAS 1421065-63-5)
- 1-Pentanamine, N-(phenylmethoxy)- (CAS 471256-91-4)
- 5-Cyclopropoxy-6-ethylpyridine-3-sulfonamide (CAS 1243447-47-3)
- Semaglutide impurity 256 (CAS CATO-C4X-2226256)
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