2-Formyl-3-Oxobutanoic Acid Ethyl Ester CAS 33142-24-4

Description

Compared with other compounds in its class, the molecular weight of 158.15 g/mol gives 2-Formyl-3-Oxobutanoic Acid Ethyl Ester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Formyl-3-Oxobutanoic Acid Ethyl Ester (CAS 33142-24-4), molecular formula C7H10O4 and molecular weight 158.15 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 2-Formyl-3-Oxobutanoic Acid Ethyl Ester is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 158.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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