3-Cyclopropyl-1-((2,4,5-trichlorophenyl)sulfonyl)-1H-pyrazole CAS 955962-40-0

Purity 97%+In StockPharmaceutical Standards
CAS No.955962-40-0
Molecular FormulaC12H9Cl3N2O2S
Molecular Weight351.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Cyclopropyl-1-((2,4,5-trichlorophenyl)sulfonyl)-1H-pyrazole CAS 955962-40-0 chemical structure

Description

The occurrence of 3-Cyclopropyl-1-((2,4,5-trichlorophenyl)sulfonyl)-1H-pyrazole is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-Cyclopropyl-1-((2,4,5-trichlorophenyl)sulfonyl)-1H-pyrazole (CAS 955962-40-0) is a high-purity analytical reference standard with the molecular formula C12H9Cl3N2O2S and a molecular weight of 351.64 g/mol.

The molecular framework of 3-Cyclopropyl-1-((2,4,5-trichlorophenyl)sulfonyl)-1H-pyrazole (C12H9Cl3N2O2S) 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 3-Cyclopropyl-1-((2,4,5-trichlorophenyl)sulfonyl)-1H-pyrazole 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 FormulaC12H9Cl3N2O2S
Molecular Weight351.64 g/mol
Purity97%+
StorageStore at 2-8°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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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