5-(2-Chlorophenyl)-1-(3-chlorophenyl)-1H-pyrazole-3-carboxylic acid CAS 477712-04-2

Purity 97%+In StockPharmaceutical Standards
CAS No.477712-04-2
Molecular FormulaC16H10Cl2N2O2
Molecular Weight333.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(2-Chlorophenyl)-1-(3-chlorophenyl)-1H-pyrazole-3-carboxylic acid CAS 477712-04-2 chemical structure

Description

CATO supplies 5-(2-Chlorophenyl)-1-(3-chlorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 477712-04-2), a certified reference material (molecular formula C16H10Cl2N2O2, MW 333.17 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 5-(2-Chlorophenyl)-1-(3-chlorophenyl)-1H-pyrazole-3-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 333.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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), 5-(2-Chlorophenyl)-1-(3-chlorophenyl)-1H-pyrazole-3-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

Molecular FormulaC16H10Cl2N2O2
Molecular Weight333.17 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms2

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