The molecule is a benzofuropyranochromene that is 3H,7H-[1]benzofuro[3,2-c]pyrano[3,2-g]chromene substituted at positions 7a and 10 by hydroxy groups and at position 3 by a gem-dimethyl group. It has a role as a phytoalexin.
(2S,10S)-17,17-dimethyl-3,12,16-trioxapentacyclo[11.8.0.02,10.04,9.015,20]henicosa-1(13),4(9),5,7,14,18,20-heptaene-6,10-diol