(6R,7R)-6,7-dihydroxy-1,6-dimethyl-8,9-dihydro-7H-naphtho[8,7-g][1]benzoxole-10,11-dione (6R,7R)-6,7-dihydroxy-1,6-dimethyl-8,9-dihydro-7H-naphtho[8,7-g]benzofuran-10,11-dione (6R,7R)-6,7-dihydroxy-1,6-dimethyl-8,9-dihydro-7H-naphtho[8,7-g]benzofuran-10,11-quinone 96839-30-4 Phenanthro(1,2-b)furan-10,11-dione, 6,7,8,9-tetrahydro-6,7-dihydroxy-1,6-dimethyl- Przewaquinone D Przewaquinone E