3-(4-Fluorophenyl)-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)-1H-pyrazole-5-carboxamide CAS 1257800-44-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1257800-44-4
Molecular FormulaC18H13FN4O2S
Molecular Weight368.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(4-Fluorophenyl)-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)-1H-pyrazole-5-carboxamide CAS 1257800-44-4 chemical structure

Description

The occurrence of 3-(4-Fluorophenyl)-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)-1H-pyrazole-5-carboxamide is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 3-(4-Fluorophenyl)-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)-1H-pyrazole-5-carboxamide (CAS 1257800-44-4), a certified reference material (molecular formula C18H13FN4O2S, MW 368.38 g/mol) for analytical method development and quality control.

Based on its molecular formula C18H13FN4O2S, 3-(4-Fluorophenyl)-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)-1H-pyrazole-5-carboxamide contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 368.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 3-(4-Fluorophenyl)-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)-1H-pyrazole-5-carboxamide 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 FormulaC18H13FN4O2S
Molecular Weight368.38 g/mol
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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Halogen ContentF-containing
Nitrogen Atoms4
Sulfur Atoms1

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