4-(Benzenesulfonyl)-1-(2,5-dichlorophenyl)-5-(4-fluorophenyl)-1H-pyrazole CAS 318951-71-2

Purity 97%+In StockPharmaceutical Standards
CAS No.318951-71-2
Molecular FormulaC21H13Cl2FN2O2S
Molecular Weight447.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(Benzenesulfonyl)-1-(2,5-dichlorophenyl)-5-(4-fluorophenyl)-1H-pyrazole CAS 318951-71-2 chemical structure

Description

CATO supplies 4-(Benzenesulfonyl)-1-(2,5-dichlorophenyl)-5-(4-fluorophenyl)-1H-pyrazole (CAS 318951-71-2), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H13Cl2FN2O2S. Molecular weight: 447.31 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC21H13Cl2FN2O2S
Molecular Weight447.31 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay 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)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF/Cl-containing
Nitrogen Atoms2
Sulfur Atoms1

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