2-Ethyl-6-methylphenyl isothiocyanate CAS 66609-04-9

Description

Compared with other compounds in its class, the molecular weight of 177.27 g/mol gives 2-Ethyl-6-methylphenyl isothiocyanate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-Ethyl-6-methylphenyl isothiocyanate (CAS 66609-04-9), molecular formula C10H11NS and molecular weight 177.27 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, 2-Ethyl-6-methylphenyl isothiocyanate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 177.27 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).

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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