4-Chloro-1-methyl-3-(trifluoromethyl)-1h-pyrazole-5-carboxylic acid CAS 128694-71-3

Purity 97%+In StockPharmaceutical Standards
CAS No.128694-71-3
Molecular FormulaC6H4ClF3N2O2
Molecular Weight228.56 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chloro-1-methyl-3-(trifluoromethyl)-1h-pyrazole-5-carboxylic acid CAS 128694-71-3 chemical structure

Description

4-Chloro-1-methyl-3-(trifluoromethyl)-1h-pyrazole-5-carboxylic acid (CAS 128694-71-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C6H4ClF3N2O2. Molecular weight: 228.56 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.

Physical & Chemical Properties

Molecular FormulaC6H4ClF3N2O2
Molecular Weight228.56 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1993
Halogen ContentF/Cl-containing
Nitrogen Atoms2

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