Kalmar "isothiocyanate" suna ne da ke nufin wani sinadari na wani nau'in mahadi na halitta wanda ke ɗauke da rukunin aiki -N=C=S. An samo shi daga isomerization na ion thiocyanate (-SCN) kuma ana nuna shi ta hanyar sake tsarawa na sulfur da nitrogen atom.Isothiocyanates ana samun su a wasu tsire-tsire na dangin Brassicaceae, irin su broccoli. kabeji, da mustard. Wadannan mahadi an san su da ƙamshi mai ƙamshi kuma galibi ana danganta su da halayen ɗanɗano da ƙamshin waɗannan tsire-tsire. da kuma matsayin dakin gwaje-gwaje reagents. Suna baje kolin ayyukan halitta iri-iri kuma an yi nazarinsu don amfanin lafiyarsu mai yuwuwa, kamar maganin ciwon daji, maganin ƙwayoyin cuta, da kuma abubuwan hana kumburi. rukuni kuma yana da aikace-aikace na halitta da na roba.