The molecule is a member of the class of dioxolanes that is 1,3-dioxolane substituted by a carboxy, benzyl and benzylidene groups at positions 2, 2 and 4, respectively. It is a phytotoxic metabolite of the grape black rot fungus Guignardia bidwellii. It has a role as a fungal metabolite. It is a monocarboxylic acid, a dioxolane and a member of benzenes. It is a conjugate acid of a phenguignardate.
(2S,4Z)-2-benzyl-4-benzylidene-5-oxo-1,3-dioxolane-2-carboxylic acid