1-(4-Chlorophenyl)-3-methyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid CAS 326618-92-2

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(4-Chlorophenyl)-3-methyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid.

CATO supplies 1-(4-Chlorophenyl)-3-methyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid (CAS 326618-92-2), a certified reference material (molecular formula C13H9ClN2O2S, MW 292.74 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 1-(4-Chlorophenyl)-3-methyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 292.74 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 1-(4-Chlorophenyl)-3-methyl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid 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

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