SPINULOSIN

3,6-Dihydroxy-5-methoxy-p-toluquinone

2,5-Dihydroxy-3-methoxy-6-methyl-1,4-benzoquinone

2,5-Dihydroxy-3-methyl-6-methoxy-1,4-benzoquinone

2,5-Dihydroxy-3-methoxy-6-methyl-2,5-cyclohexadiene-1,4-dione