1-(2-amino-4-fluorophenyl)-1H-pyrazole-3-carboxylic acid,HCl CAS 1431964-95-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1431964-95-2
Molecular FormulaC10H8FN3O2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(2-amino-4-fluorophenyl)-1H-pyrazole-3-carboxylic acid,HCl CAS 1431964-95-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(2-amino-4-fluorophenyl)-1H-pyrazole-3-carboxylic acid,HCl.

1-(2-amino-4-fluorophenyl)-1H-pyrazole-3-carboxylic acid,HCl (CAS 1431964-95-2), molecular formula C10H8FN3O2HCl and molecular weight 257.65 g/mol, is a CATO reference standard with documented purity and traceability.

1-(2-amino-4-fluorophenyl)-1H-pyrazole-3-carboxylic acid,HCl (C10H8FN3O2HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC10H8FN3O2 HCl
Molecular Weight257.65 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Halogen ContentF/Cl-containing
Nitrogen Atoms3

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