Showing structure for (1s,2s,3e)-1-(3,4-dihydroxyphenyl)-5,6-dihydroxy-n-[2-(4-hydroxyphenyl)ethyl]-3-({[2-(4-hydroxyphenyl)ethyl]-c-hydroxycarbonimidoyl}methylidene)-1,2-dihydroindene-2-carboximidic acid