3-Mercaptobenzoyl chloride CAS 70074-41-8

Description

Compared with other compounds in its class, the molecular weight of 172.63 g/mol gives 3-Mercaptobenzoyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Mercaptobenzoyl chloride (CAS 70074-41-8), molecular formula C7H5ClOS and molecular weight 172.63 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 3-Mercaptobenzoyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 172.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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