2,​4,​5-​Trichloro-​β-​oxo-benzenepropanoic Acid Ethyl Ester CAS 63131-33-9

Purity 97%+In StockPharmaceutical Standards
CAS No.63131-33-9
Molecular FormulaC11H9Cl3O3
Molecular Weight295.55 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,​4,​5-​Trichloro-​β-​oxo-benzenepropanoic Acid Ethyl Ester CAS 63131-33-9 chemical structure

Description

CATO manufactures 2,​4,​5-​Trichloro-​β-​oxo-benzenepropanoic Acid Ethyl Ester 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.

2,​4,​5-​Trichloro-​β-​oxo-benzenepropanoic Acid Ethyl Ester (CAS 63131-33-9) is a high-purity analytical reference standard with the molecular formula C11H9Cl3O3 and a molecular weight of 295.55 g/mol.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2,​4,​5-​Trichloro-​β-​oxo-benzenepropanoic Acid Ethyl Ester is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 295.55 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.

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 FormulaC11H9Cl3O3
Molecular Weight295.55 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1975
Halogen ContentCl-containing

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