(E)-4-fluorobut-2-enoic Acid CAS 37759-72-1

Purity 97%+In StockPharmaceutical Standards
CAS No.37759-72-1
Molecular FormulaC4H5FO2
Molecular Weight104.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-4-fluorobut-2-enoic Acid CAS 37759-72-1 chemical structure

Description

(E)-4-fluorobut-2-enoic Acid (CAS 37759-72-1), molecular formula C4H5FO2 and molecular weight 104.08 g/mol, is a CATO reference standard with documented purity and traceability.

(E)-4-fluorobut-2-enoic Acid (C4H5FO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

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 FormulaC4H5FO2
Molecular Weight104.08 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.)1967
Halogen ContentF-containing

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Why CATO?