2,2'-Dichloro diphenyl disulfide CAS 31121-19-4

Description

The occurrence of 2,2'-Dichloro diphenyl disulfide is closely related to sulfur-containing functionality, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2,2'-Dichloro diphenyl disulfide (CAS 31121-19-4) is a high-purity analytical reference standard with the molecular formula C12H8Cl2S2 and a molecular weight of 287.23 g/mol.

Owing to sulfur-containing functionality, chlorine substitution, an aromatic ring system, 2,2'-Dichloro diphenyl disulfide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 287.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

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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