2,5-Dichlorothiophene-3-sulfonyl chloride CAS 56946-83-9

Description

Compared with other compounds in its class, the molecular weight of 251.54 g/mol gives 2,5-Dichlorothiophene-3-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2,5-Dichlorothiophene-3-sulfonyl chloride (CAS 56946-83-9) is a high-purity analytical reference standard with the molecular formula C4HCl3O2S2 and a molecular weight of 251.54 g/mol.

Structurally, 2,5-Dichlorothiophene-3-sulfonyl chloride (C4HCl3O2S2) contains a sulfone group, 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 251.54 g/mol, it falls into the medium-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).

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

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