Dotinurad Impurity 44 CAS CATO-C4X-249444
| CAS No. | CATO-C4X-249444 |
| Molecular Formula | C15H12ClNO2S |
| Molecular Weight | 305.78 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Dotinurad Impurity 44 (CAS CATO-C4X-249444) is a certified pharmaceutical impurity reference standard with the molecular formula C15H12ClNO2S and a molecular weight of 305.78 g/mol.
Based on its molecular formula C15H12ClNO2S, Dotinurad Impurity 44 contains a nitrogen-containing heterocyclic scaffold, 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 305.78 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C15H12ClNO2S |
| Molecular Weight | 305.78 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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 90 (CAS CATO-C4X-249490)
- Dotinurad Impurity 184 (CAS CATO-C4X-2494184)
- Dotinurad Impurity 255 (CAS CATO-C4X-2494255)
- Dotinurad Impurity 229 (CAS CATO-C4X-2494229)
- Dotinurad Impurity 123 (CAS 888731-24-6)
- Dotinurad Impurity 50 (CAS CATO-C4X-249450)
- Dotinurad Impurity 32 (CAS CATO-C4X-249432)
- Dotinurad Impurity 140 (CAS CATO-C4X-2494140)
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