2-[2-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-vinyl]-6-methoxy-benzoic acid methyl ester CAS 365542-59-2

Purity 97%+In StockPharmaceutical Standards
CAS No.365542-59-2
Molecular FormulaC21H19ClN2O3
Molecular Weight382.84 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-[2-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-vinyl]-6-methoxy-benzoic acid methyl ester CAS 365542-59-2 chemical structure

Description

2-[2-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)-vinyl]-6-methoxy-benzoic acid methyl ester (CAS 365542-59-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H19ClN2O3. Molecular weight: 382.84 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC21H19ClN2O3
Molecular Weight382.84 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.)2025
Halogen ContentCl-containing
Nitrogen Atoms2

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