Methyl 4-chloro-2,2,3,3-tetrafluoro-4-oxobutanoate CAS 21543-97-5

Purity 97%+In StockPharmaceutical Standards
CAS No.21543-97-5
Molecular FormulaC5H3ClF4O3
Molecular Weight222.52 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 4-chloro-2,2,3,3-tetrafluoro-4-oxobutanoate CAS 21543-97-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 222.52 g/mol gives Methyl 4-chloro-2,2,3,3-tetrafluoro-4-oxobutanoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Methyl 4-chloro-2,2,3,3-tetrafluoro-4-oxobutanoate (CAS 21543-97-5), a certified reference material (molecular formula C5H3ClF4O3, MW 222.52 g/mol) for analytical method development and quality control.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Methyl 4-chloro-2,2,3,3-tetrafluoro-4-oxobutanoate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 222.52 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.

CATO manufactures Methyl 4-chloro-2,2,3,3-tetrafluoro-4-oxobutanoate 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 FormulaC5H3ClF4O3
Molecular Weight222.52 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1963
Halogen ContentF/Cl-containing

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