(E)-Pent-2-en-4-ynoic acid CAS 68267-52-7

Purity 97%+In StockPharmaceutical Standards
CAS No.68267-52-7
Molecular FormulaC5H4O2
Molecular Weight96.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-Pent-2-en-4-ynoic acid CAS 68267-52-7 chemical structure

Description

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.

(E)-Pent-2-en-4-ynoic acid (CAS 68267-52-7) is a high-purity analytical reference standard with the molecular formula C5H4O2 and a molecular weight of 96.08 g/mol.

The molecular framework of (E)-Pent-2-en-4-ynoic acid (C5H4O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

Physical & Chemical Properties

Molecular FormulaC5H4O2
Molecular Weight96.08 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1976

Related E Standards

Recommended Standards

Why CATO?