S-(4-chlorophenyl) (E)-3-(benzo[d][1,3]dioxol-5-yl)prop-2-enethioate CAS 298215-57-3

Description

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

S-(4-chlorophenyl) (E)-3-(benzo[d][1,3]dioxol-5-yl)prop-2-enethioate (CAS 298215-57-3), molecular formula C16H11ClO3S and molecular weight 318.77 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C16H11ClO3S, S-(4-chlorophenyl) (E)-3-(benzo[d][1,3]dioxol-5-yl)prop-2-enethioate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 318.77 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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

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