(-)-2,4,9-Trihydroxy-6-methoxy-7-methyl-2-(2-oxopropyl)-1H-phenalene-1,3(2H)-dione 124190-19-8 1H-phenalene-1,3(2H)-dione, 2,4,9-trihydroxy-6-methoxy-7-methyl-2-(2-oxopropyl)-, (-)- 2-Acetonyl-2,4,9-trihydroxy-6-methoxy-7-methyl-1H-phenalene-1,3(2H)-dione FR 901235 FR-901235