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Wiktionary
isothiocyanate

n. (context chemistry English) any salt or ester of the hypothetical isothiocyanic acid; or the -NCS radical or the NCS-1 anion; isomeric with thiocyanate

WordNet
isothiocyanate

n. a family of compounds derived from horseradish and radishes and onions and mustards; source of the hotness of those plants and preparations

Wikipedia
Isothiocyanate

thumb|right|upright=1.1|alt=General structure of an isothiocyanate.|General structure of an isothiocyanate.

Isothiocyanate is the chemical group – N= C= S, formed by substituting the oxygen in the isocyanate group with a sulfur. Many natural isothiocyanates from plants are produced by enzymatic conversion of metabolites called glucosinolates. These natural isothiocyanates, such as allyl isothiocyanate, are also known as mustard oils. An artificial isothiocyanate, phenyl isothiocyanate, is used for amino acid sequencing in the Edman degradation.

Usage examples of "isothiocyanate".

It is distilled from the seeds that have been deprived of most of the fixed oil and macerated in water for several hours, and contains from go to 99 per cent of the active principle, Allyl isothiocyanate, which is used as a counter irritant.

It has properties very similar to Black Mustard seeds, containing Sinigrin, a crystalline glucoside, which is decomposed in the presence of water by Myrosin, an enzyme found also in the root, the chief produce being the volatile oil Allyl, isothiocyanate, which is identical with that of Black Mustard seed.