(Z)-4-(4-Chlorophenyl)-2-hydroxy-4-oxobut-2-enoic acid CAS 103344-71-4

Purity 97%+In StockPharmaceutical Standards
CAS No.103344-71-4
Molecular FormulaC10H7ClO4
Molecular Weight226.61 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(Z)-4-(4-Chlorophenyl)-2-hydroxy-4-oxobut-2-enoic acid CAS 103344-71-4 chemical structure

Description

CATO manufactures (Z)-4-(4-Chlorophenyl)-2-hydroxy-4-oxobut-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.

(Z)-4-(4-Chlorophenyl)-2-hydroxy-4-oxobut-2-enoic acid (CAS 103344-71-4), molecular formula C10H7ClO4 and molecular weight 226.61 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (Z)-4-(4-Chlorophenyl)-2-hydroxy-4-oxobut-2-enoic acid (C10H7ClO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 226.61 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

Physical & Chemical Properties

Molecular FormulaC10H7ClO4
Molecular Weight226.61 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
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.)1986
Halogen ContentCl-containing

Related Z Standards

Recommended Standards

Why CATO?