3-((1H-Pyrazol-1-yl)methyl)benzenesulfonyl chloride CAS 1152972-85-4
| CAS No. | 1152972-85-4 |
| Molecular Formula | C10H9ClN2O2S |
| Molecular Weight | 256.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-((1H-Pyrazol-1-yl)methyl)benzenesulfonyl chloride (CAS 1152972-85-4) is a high-purity analytical reference standard with the molecular formula C10H9ClN2O2S and a molecular weight of 256.71 g/mol.
The molecular framework of 3-((1H-Pyrazol-1-yl)methyl)benzenesulfonyl chloride (C10H9ClN2O2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 3-((1H-Pyrazol-1-yl)methyl)benzenesulfonyl chloride 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.
Physical & Chemical Properties
| Molecular Formula | C10H9ClN2O2S |
| Molecular Weight | 256.71 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related H Standards
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Recommended Standards
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- 1-(3-Methylphenyl)-1h-pyrazole-4-sulfonyl chloride (CAS 1156603-82-5)
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- 1-(5-Fluoro-3-nitropyridin-2-yl)ethan-1-one (CAS 1432754-46-5)
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- Rimegepant Impurity 72 (CAS CATO-C4X-248772)
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