4-(3-Phenyl-5-(p-tolyl)-1H-pyrazol-1-yl)benzenesulfonamide CAS 111607-61-5
| CAS No. | 111607-61-5 |
| Molecular Formula | C22H19N3O2S |
| Molecular Weight | 389.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| 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.
CATO supplies 4-(3-Phenyl-5-(p-tolyl)-1H-pyrazol-1-yl)benzenesulfonamide (CAS 111607-61-5), a certified reference material (molecular formula C22H19N3O2S, MW 389.47 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 4-(3-Phenyl-5-(p-tolyl)-1H-pyrazol-1-yl)benzenesulfonamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 389.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C22H19N3O2S |
| Molecular Weight | 389.47 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- N-(3,4-Dimethylphenyl)-2-{4-oxo-7-phenyl-3H,4H-thieno[3,2-d]pyrimidin-3-yl}acetamide (CAS 1105235-79-7)
- 2-(2-(2-(5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamido)ethoxy)ethoxy)acetic acid (CAS 1238575-77-3)
- N-(4-ethylphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (CAS 1105235-36-6)
- Methyl (2Z)-3-[(4-methoxyphenyl)amino]-2-[4-(propan-2-yl)benzenesulfonyl]prop-2-enoate (CAS 1327168-16-0)
- 2-(Difluoromethyl)-4,6-dihydroxypyridine-3-acetic acid (CAS 1804690-55-8)
- N-(3-Fluorophenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide (CAS 1574583-66-6)
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- tert-Butyl ((1-(6-methoxy-2-(methylthio)pyrimidin-4-yl)piperidin-2-yl)methyl)carbamate (CAS 1353947-50-8)
- 8-(Pyridin-4-yl)-8-azabicyclo[3.2.1]Octan-3-ol (CAS 1342419-15-1)
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- 4-Fluoro-2-(methylsulfonyl)nitrobenzene (CAS 78228-02-1)
- Benzyl ((3-fluoroazepan-3-yl)methyl)carbamate (CAS 1823856-93-4)
- Liraglutide Impurity 21 TFA Salt (CAS CATO-C4X-199221)
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