1-(4-chlorophenyl)-3-methyl-1H-pyrazole-4-carboxylic acid CAS 288252-17-5

Purity 97%+In StockPharmaceutical Standards
CAS No.288252-17-5
Molecular FormulaC11H9ClN2O2
Molecular Weight236.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(4-chlorophenyl)-3-methyl-1H-pyrazole-4-carboxylic acid CAS 288252-17-5 chemical structure

Description

CATO supplies 1-(4-chlorophenyl)-3-methyl-1H-pyrazole-4-carboxylic acid (CAS 288252-17-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C11H9ClN2O2. Molecular weight: 236.65 g/mol. Batch-specific COA and technical support are available on request.

Physical & Chemical Properties

Molecular FormulaC11H9ClN2O2
Molecular Weight236.65 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
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.)2025
Halogen ContentCl-containing
Nitrogen Atoms2

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