humulon

3,5,6-Trihydroxy-4-isovaleryl-2,6-bis(3-methyl-2-butenyl)-2,4-cyclohexadiene-1-one

2,4-Cyclohexadien-1-one, 3,5,6-trihydroxy-2,6-bis(3-methyl-2-butenyl)-4-(3-methyl-1-oxobutyl)-