General structure of an<unk> .<unk>  is the chemical group –N=C=S, formed by substituting the oxygen in the isocyanate group with a sulfur. Many natural<unk> s from plants are produced by enzymatic conversion of metabolites called glucosinolates. These natural<unk> s, such as allyl<unk> , are also known as mustard oils. An artificial<unk> , phenyl<unk> , is used for amino acid sequencing in the Edman degradation. Cruciferous vegetables, such as bok choy, broccoli, cabbage, cauliflower, kale, and others, are rich sources of glucosinolate precursors of<unk> s. Although there has been some basic research on how<unk> s might exert biological effects in vivo, there is no high-quality evidence to date for its efficacy against human diseases.
Isothiocyanate
Hydrogen fluoride
Carbonated water
Bromide
Cyanide
Carbon monoxide
3-Chloropropanoic acid
Tetraethyllead