4-Ethoxy-4-oxobut-2-ynoic acid CAS 38391-86-5

Purity 97%+In StockPharmaceutical Standards
CAS No.38391-86-5
Molecular FormulaC6H5O4
Molecular Weight141.10 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Ethoxy-4-oxobut-2-ynoic acid CAS 38391-86-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 141.10 g/mol gives 4-Ethoxy-4-oxobut-2-ynoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Ethoxy-4-oxobut-2-ynoic acid (CAS 38391-86-5) is a high-purity analytical reference standard with the molecular formula C6H5O4 and a molecular weight of 141.10 g/mol.

Based on its molecular formula C6H5O4, 4-Ethoxy-4-oxobut-2-ynoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 141.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

CATO manufactures 4-Ethoxy-4-oxobut-2-ynoic 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.

Physical & Chemical Properties

Molecular FormulaC6H5O4
Molecular Weight141.10 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1967

Related Ethoxy Standards

Recommended Standards

Why CATO?