2-(3,4-dihydroxyphenyl)-8-[3-(3,4-dihydroxyphenyl)-5-[2-(3,4-dihydroxyphenyl)-8-[2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-yl]-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-yl]-2,6,8-trihydroxy-1,2,3,4-tetrahydronaphthalen-1-yl]-4-[2-(3,4-dihydroxyphenyl)-4-[7-(3,4-dihydroxyphenyl)-2,4,6-trihydroxy-5,6,7,8-tetrahydronaphthalen-1-yl]-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-8-yl]-3,4-dihydro-2H-chromene-3,5,7-triol