8-Hydroxy-1-hydroxymethyl-3-methyl-7-(3-methyl-but-2-enyl)-2-(3-methyl-but-2-enyloxy)-xanthen-9-one 8-hydroxy-1-(hydroxymethyl)-3-methyl-7-(3-methylbut-2-en-1-yl)-2-[(3-methylbut-2-en-1-yl)oxy]-9H-xanthen-9-one 9H-xanthen-9-one, 8-hydroxy-1-(hydroxymethyl)-3-methyl-7-(3-methyl-2-butenyl)-2-[(3-methyl-2-butenyl)oxy]- InChI=1/C25H28O5/c1-14(2)6-7-17-8-9-19-22(23(17)27)24(28)21-18(13-26)25(29-11-10-15(3)4)16(5)12-20(21)30-19/h6,8-10,12,26-27H,7,11,13H2,1-5H Isoemericellin