3-Hydroxy-2-oxobutanoic acid CAS 1944-42-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1944-42-9
Molecular FormulaC4H6O4
Molecular Weight118.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Hydroxy-2-oxobutanoic acid CAS 1944-42-9 chemical structure

Description

Based on its molecular formula C4H6O4, 3-Hydroxy-2-oxobutanoic acid contains a carbohydrate-derived structure; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 118.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

3-Hydroxy-2-oxobutanoic acid (CAS 1944-42-9) is a high-purity analytical reference standard with the molecular formula C4H6O4 and a molecular weight of 118.09 g/mol.

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.

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

Molecular FormulaC4H6O4
Molecular Weight118.09 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1957

Related Hydroxy Standards

Recommended Standards

Why CATO?