4,5-Dimethoxy-2-methylbenzene-1-thiol CAS 78523-20-3

Description

Compared with other compounds in its class, the molecular weight of 184.26 g/mol gives 4,5-Dimethoxy-2-methylbenzene-1-thiol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4,5-Dimethoxy-2-methylbenzene-1-thiol (CAS 78523-20-3), molecular formula C9H12O2S and molecular weight 184.26 g/mol, is a CATO reference standard with documented purity and traceability.

4,5-Dimethoxy-2-methylbenzene-1-thiol (C9H12O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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