But-3-yn-1-yl carbonochloridate CAS 190774-49-3

Purity 97%+In StockPharmaceutical Standards
CAS No.190774-49-3
Molecular FormulaC5H5ClO2
Molecular Weight132.55 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

But-3-yn-1-yl carbonochloridate CAS 190774-49-3 chemical structure

Description

Structurally, But-3-yn-1-yl carbonochloridate (C5H5ClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 132.55 g/mol, it falls into the low-molecular-weight range. 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).

But-3-yn-1-yl carbonochloridate (CAS 190774-49-3) is a high-purity analytical reference standard with the molecular formula C5H5ClO2 and a molecular weight of 132.55 g/mol.

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 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.)2011
Halogen ContentCl-containing

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