Goitrin is a potent antithyroid compound, it is a moderate inhibitor of purified bovine adrenal dopamine beta-hydroxylase,leads to a depression of brain norepinephrine and to an elevation of heart and adrenal dopamine. Goitrin is responsible for the induction of glutathione S-transferases. (S)-goitrin is a 5-ethenyl-1,3-oxazolidine-2-thione that has S-configuration. It is a constituent of a traditional Chinese herbal medicine, Radix isatidis. It has a role as an antiviral agent, an antithyroid drug and a plant metabolite. It is an enantiomer of a (R)-goitrin.