[5-(Benzenesulfonyl)-1-methyl-3-phenyl-1H-pyrazol-4-yl]methyl 3,4-dichlorobenzoate CAS 318289-38-2
| CAS No. | 318289-38-2 |
| Molecular Formula | C24H18Cl2N2O4S |
| Molecular Weight | 501.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures [5-(Benzenesulfonyl)-1-methyl-3-phenyl-1H-pyrazol-4-yl]methyl 3,4-dichlorobenzoate 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.
[5-(Benzenesulfonyl)-1-methyl-3-phenyl-1H-pyrazol-4-yl]methyl 3,4-dichlorobenzoate (CAS 318289-38-2), molecular formula C24H18Cl2N2O4S and molecular weight 501.38 g/mol, is a CATO reference standard with documented purity and traceability.
[5-(Benzenesulfonyl)-1-methyl-3-phenyl-1H-pyrazol-4-yl]methyl 3,4-dichlorobenzoate (C24H18Cl2N2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C24H18Cl2N2O4S |
| Molecular Weight | 501.38 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Benzenesulfonyl Standards
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Recommended Standards
- (5-((4-Chlorophenyl)sulfonyl)-1-methyl-3-phenyl-1H-pyrazol-4-yl)methyl 4-chlorobenzoate (CAS 318248-33-8)
- Platinum,2-cyclohexanediamine)(D-glucuronato(2-))-,(1S-trans) (CAS 71484-84-9)
- 6-(2,2,2-Trifluoroethoxy)-N-[2-[[[1-phenyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]carbonyl]amino]ethyl]nicotinamide (CAS 1003576-00-8)
- Methyl 2-(2-(N-(3,5-bis(trifluoromethyl)phenyl)sulfamoyl)-4,5-dimethoxyphenyl)acetate (CAS 1024082-03-8)
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- 5-(1,1,1,3,3,3-Hexafluoropropan-2-yloxy)nicotinaldehyde (CAS 1707391-54-5)
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- 3-Hydroxy-2,2-dimethylpropyl hydrogen phenanthren-9-ylboronate (CAS 1416371-19-1)
- Tirzepatide Impurity 24 X TFA Salt (CAS CATO-C4X-324024)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com