label: 1,4,4a,5,6,6a,12a,12b-octahydro-1,4a,8,12-tetrahydroxy-3-methyl-6a,12a-epoxybenz(a)anthracen-7(12H)-one
label_lc: 1,4,4a,5,6,6a,12a,12b-octahydro-1,4a,8,12-tetrahydroxy-3-methyl-6a,12a-epoxybenz(a)anthracen-7(12h)-one