(2e)-3-[3-(4-fluorophenyl)-1-phenyl-1h-pyrazol-4-yl]prop-2-enoic acid CAS 519137-39-4

Purity 97%+In StockPharmaceutical Standards
CAS No.519137-39-4
Molecular FormulaC18H13FN2O2
Molecular Weight308.31 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2e)-3-[3-(4-fluorophenyl)-1-phenyl-1h-pyrazol-4-yl]prop-2-enoic acid CAS 519137-39-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 308.31 g/mol gives (2e)-3-[3-(4-fluorophenyl)-1-phenyl-1h-pyrazol-4-yl]prop-2-enoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(2e)-3-[3-(4-fluorophenyl)-1-phenyl-1h-pyrazol-4-yl]prop-2-enoic acid (CAS 519137-39-4) is a high-purity analytical reference standard with the molecular formula C18H13FN2O2 and a molecular weight of 308.31 g/mol.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, (2e)-3-[3-(4-fluorophenyl)-1-phenyl-1h-pyrazol-4-yl]prop-2-enoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 308.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

CATO manufactures (2e)-3-[3-(4-fluorophenyl)-1-phenyl-1h-pyrazol-4-yl]prop-2-enoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC18H13FN2O2
Molecular Weight308.31 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
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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984
Halogen ContentF-containing
Nitrogen Atoms2

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