150151-89-6 6,13-Dihydro-13,13-dimethyl-3-pentyl-1,7,9,11-tetrahydroxybenzo(a)naphthacen-8(5H)-one Benastatin D Benzo(a)naphthacen-8(5H)-one, 6,13-dihydro-13,13-dimethyl-3-pentyl-1,7,9,11-tetrahydroxy-