4-Methylphenyl β-D-thiogalactopyranoside CAS 28244-98-6

Description

Compared with other compounds in its class, the molecular weight of 286.34 g/mol gives 4-Methylphenyl β-D-thiogalactopyranoside distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Methylphenyl β-D-thiogalactopyranoside (CAS 28244-98-6), molecular formula C13H18O5S and molecular weight 286.34 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C13H18O5S, 4-Methylphenyl β-D-thiogalactopyranoside contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 286.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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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