1,3,5-Trihydroxy-2-(3-methylbut-2-enyl)-8-(3-hydroxy-3-methylbutyl)xanthone 1,3,5-Trihydroxy-8-(3-hydroxy-3-methyl-butyl)-2-(3-methyl-but-2-enyl)-xanthen-9-one 1,3,5-trihydroxy-8-(3-hydroxy-3-methylbutyl)-2-(3-methylbut-2-en-1-yl)-9H-xanthen-9-one 9H-xanthen-9-one, 1,3,5-trihydroxy-8-(3-hydroxy-3-methylbutyl)-2-(3-methyl-2-butenyl)- InChI=1/C23H26O6/c1-12(2)5-7-14-16(25)11-17-19(20(14)26)21(27)18-13(9-10-23(3,4)28)6-8-15(24)22(18)29-17/h5-6,8,11,24-26,28H,7,9-10H2,1-4H Nigrolineaxanthone N