4-(3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-N,N-bis(2-hydroxyethyl)benzenesulfonamide CAS 293326-14-4
| CAS No. | 293326-14-4 |
| Molecular Formula | C19H22ClN3O4S |
| Molecular Weight | 423.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-N,N-bis(2-hydroxyethyl)benzenesulfonamide.
4-(3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-N,N-bis(2-hydroxyethyl)benzenesulfonamide (CAS 293326-14-4), molecular formula C19H22ClN3O4S and molecular weight 423.91 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 4-(3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-N,N-bis(2-hydroxyethyl)benzenesulfonamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 423.91 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 4-(3-(4-Chlorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-N,N-bis(2-hydroxyethyl)benzenesulfonamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H22ClN3O4S |
| Molecular Weight | 423.91 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 7-(4-Chlorophenyl)-2-(4-(pyridin-2-yl)piperazin-1-yl)thieno[3,2-d]pyrimidin-4-ol (CAS 1226436-01-6)
- Methyl 3-(2-((4-chlorophenyl)sulfonamido)phenoxy)thiophene-2-carboxylate (CAS 900018-88-4)
- Methyl 3-(4-((4-chlorophenyl)sulfonamido)phenoxy)thiophene-2-carboxylate (CAS 900015-21-6)
- 2-(p-Chlorophenyl)-1-[p-[2-(diethylamino)ethoxy]phenyl]-1-phenyl-ethanol (CAS 47642-02-4)
- (E)-({2-[(4-chlorophenyl)sulfanyl]pyridin-3-yl}methylidene)[(2,4-dichlorophenyl)methoxy]amine (CAS 478030-98-7)
- (E)-({6-[(2-chlorophenyl)sulfanyl]pyridin-3-yl}methylidene)[(2,4-dichlorophenyl)methoxy]amine (CAS 339014-88-9)
- (E)-({6-[(4-chlorophenyl)sulfanyl]pyridin-3-yl}methylidene)[(2,4-dichlorophenyl)methoxy]amine (CAS 338966-94-2)
- (E)-1-(2-(4-chlorophenyl)-4-methylthiazol-5-yl)-3-((2,4-dichlorophenyl)amino)prop-2-en-1-one (CAS 478064-91-4)
Recommended Standards
- Losartan Carboxaldehyde-d3 (CAS 1184999-26-5)
- 5-Chloro-N-(2-hydroxy-3-((3-methyl-4-(3-oxomorpholino)phenyl)amino)propyl)thiophene-2-carboxamide (CAS 482306-16-1)
- GSK 525762A (CAS 1260907-17-2)
- 4H-[1,2,4]Triazolo[4,3-a][1,4]benzodiazepine-4-acetamide, 6-(4-chlorophenyl)-N-ethyl-8-methoxy-1-methyl- (CAS 1260530-43-5)
- 5-Bromo-N,N-diphenylpyridin-2-amine (CAS 333174-66-6)
- 3-((5-Chlorofuran-2-yl)methylene)indolin-2-one (CAS 853356-17-9)
- 3-[4-(difluoromethyl)-2,3-dimethyl-6-oxo-2,6-dihydro-7H-pyrazolo[3,4-b]pyridin-7-yl]propanoic acid (CAS 1018126-77-6)
- 4-(Oxazol-2-yl)benzoic acid (CAS 597561-78-9)
- 3-((1,3,3-Trimethyl-6-azabicyclo[3.2.1]Octan-6-yl)sulfonyl)benzoic acid (CAS 326182-73-4)
- 2-Cyclopropyl-1-(4-methoxyphenyl)ethan-1-one (CAS 85157-83-1)
- 5-Methoxy-N,N-dimethylpyridazin-3-amine (CAS 779264-09-4)
- 2-{spiro[4.5]decan-8-yl}acetic acid (CAS 1517177-38-6)
- 6-Amino-2-((2-methoxyphenyl)amino)pyrimidin-4(3H)-one (CAS 1211483-88-3)
- Palmitoyl Tripeptide -5 · 2 TFA (CAS 623172-56-5)
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