Benzo[6,7]cyclohepta[1,2,3-cd]benzofuran-4,6,8,10-tetrol,1,6,7,11b-tetrahydro-1,7-bis(4-hydroxyphenyl)-, (1a,6b,7a,11ba)-(+)-; (+)-Ampelopsin A; Ampelopsin A
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