2-Hydroxy-2-methylbut-3-ynoic acid CAS 87295-89-4

Purity 97%+In StockPharmaceutical Standards
CAS No.87295-89-4
Molecular FormulaC5H6O3
Molecular Weight114.10 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Hydroxy-2-methylbut-3-ynoic acid CAS 87295-89-4 chemical structure

Description

CATO supplies 2-Hydroxy-2-methylbut-3-ynoic acid (CAS 87295-89-4), a certified reference material (molecular formula C5H6O3, MW 114.10 g/mol) for analytical method development and quality control.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 2-Hydroxy-2-methylbut-3-ynoic acid is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 114.10 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).

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.

As a certified reference material (CRM), 2-Hydroxy-2-methylbut-3-ynoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC5H6O3
Molecular Weight114.10 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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1981

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