2-Heptyl-3,6-dihydroxy-5-(3-methyl-2-butenyl)benzaldehyde 523-73-9 6-Heptyl-3-(3-methyl-2-butenyl)gentisaldehyde Benzaldehyde, 2-heptyl-3,6-dihydroxy-5-(3-methyl-2-butenyl)- CCRIS 6491 Flavoglaucin