(E)-3-(5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)-1-(thiophen-2-yl)prop-2-en-1-one CAS 956376-49-1

Purity 97%+In StockPharmaceutical Standards
CAS No.956376-49-1
Molecular FormulaC12H8ClF3N2OS
Molecular Weight320.72 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-3-(5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)-1-(thiophen-2-yl)prop-2-en-1-one CAS 956376-49-1 chemical structure

Description

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, (E)-3-(5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)-1-(thiophen-2-yl)prop-2-en-1-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 320.72 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

CATO supplies (E)-3-(5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)-1-(thiophen-2-yl)prop-2-en-1-one (CAS 956376-49-1), a certified reference material (molecular formula C12H8ClF3N2OS, MW 320.72 g/mol) for analytical method development and quality control.

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

As a certified reference material (CRM), (E)-3-(5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)-1-(thiophen-2-yl)prop-2-en-1-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC12H8ClF3N2OS
Molecular Weight320.72 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentF/Cl-containing
Nitrogen Atoms2
Sulfur Atoms1

Related E Standards

Recommended Standards

Why CATO?