2-(Methylthio)-3-(3-Sulfopropyl)-Benzothiazolium Inner Salt CAS 63149-05-3

Description

Compared with other compounds in its class, the molecular weight of 303.42 g/mol gives 2-(Methylthio)-3-(3-Sulfopropyl)-Benzothiazolium Inner Salt distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-(Methylthio)-3-(3-Sulfopropyl)-Benzothiazolium Inner Salt (CAS 63149-05-3), molecular formula C11H13NO3S3 and molecular weight 303.42 g/mol, is a CATO reference standard with documented purity and traceability.

2-(Methylthio)-3-(3-Sulfopropyl)-Benzothiazolium Inner Salt (C11H13NO3S3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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