4-chlorobut-2-enoic acid CAS 16197-90-3

Purity 97%+In StockPharmaceutical Standards
CAS No.16197-90-3
Molecular FormulaC4H5ClO2
Molecular Weight120.53 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-chlorobut-2-enoic acid CAS 16197-90-3 chemical structure

Description

As a certified reference material (CRM), 4-chlorobut-2-enoic 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.

4-chlorobut-2-enoic acid (CAS 16197-90-3) is a high-purity analytical reference standard with the molecular formula C4H5ClO2 and a molecular weight of 120.53 g/mol.

The molecular framework of 4-chlorobut-2-enoic acid (C4H5ClO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC4H5ClO2
Molecular Weight120.53 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityContains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1961
Halogen ContentCl-containing

Related chlorobut Standards

Recommended Standards

Why CATO?