But-2-yn-1-yl carbonochloridate CAS 202591-85-3

Purity 97%+In StockPharmaceutical Standards
CAS No.202591-85-3
Molecular FormulaC5H5ClO2
Molecular Weight132.55 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

But-2-yn-1-yl carbonochloridate CAS 202591-85-3 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO supplies But-2-yn-1-yl carbonochloridate (CAS 202591-85-3), a certified reference material (molecular formula C5H5ClO2, MW 132.55 g/mol) for analytical method development and quality control.

But-2-yn-1-yl carbonochloridate (C5H5ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine 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.

CATO manufactures But-2-yn-1-yl carbonochloridate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC5H5ClO2
Molecular Weight132.55 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)2014
Halogen ContentCl-containing

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