4-Chloro-n-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-3-nitrobenzene-1-sulfonamide CAS 301314-58-9
| CAS No. | 301314-58-9 |
| Molecular Formula | C17H15ClN4O5S |
| Molecular Weight | 422.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-n-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-3-nitrobenzene-1-sulfonamide (CAS 301314-58-9), molecular formula C17H15ClN4O5S and molecular weight 422.84 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H15ClN4O5S, 4-Chloro-n-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-3-nitrobenzene-1-sulfonamide contains a flavonoid core, 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 422.84 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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.
Physical & Chemical Properties
| Molecular Formula | C17H15ClN4O5S |
| Molecular Weight | 422.84 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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Recommended Standards
- 1-Bromo-2-(2-iodotetrafluoroethoxy)tetrafluoroethane (CAS 2149602-18-4)
- (2S,4R)-1-(tert-Butoxycarbonyl)-4-((7-chloro-4-methoxyisoquinolin-1-yl)oxy)pyrrolidine-2-carboxylic acid, 97% (CAS 1028252-15-4)
- 3-(1H-benzo[d]imidazol-2-yl)-N-(4-chloro-3-(trifluoromethyl)phenyl)piperidine-1-carboxamide (CAS 837389-88-5)
- (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-chloropyridin-2-yl)propanoic acid (CAS 2350747-03-2)
- 5-(10-Bromodecyl)-2,3-dimethyl-2,5-cyclohexadiene-1,4-dione (CAS 128209-65-4)
- 4’-Bromo-2-methylbiphenyl (CAS 106475-19-8)
- 4-Chloro-N-methyl-1-phenyl-1H-pyrazole-5-carboxamide (CAS 318497-92-6)
- 4-(Isopropylsulfonyl)cyclohexan-1-amine (CAS 1341107-05-8)
- 3,4-Dimethylazepan-4-ol hydrochloride (CAS 1823245-32-4)
- chloridion in water quality (CAS CATO-CQCM102181)
- methyl[(5-methylpyridin-2-yl)methyl]amine (CAS 1060801-52-6)
- Dimethyl Aprobarbital (CAS 27509-65-5)
- 2-(4-Bromo-1H-pyrazol-3-yl)pyridine (CAS 166196-52-7)
- [y-Glu3]-Semaglutide Impurity 135 (CAS CATO-C4X-2226135)
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