The molecule is the stereoisomer of xi-progoitrin that has S at the carbon bearing the allylic hydroxy group. It has a role as a plant metabolite. It is a conjugate acid of an epi-progoitrin(1-).
[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl] (3S)-3-hydroxy-N-sulfooxypent-4-enimidothioate