1,4-NAPHTHOQUINONE, 5,8-DIHYDROXY-2,7-DIMETHOXY- 1,4-Naphthalenedione, 5,8-dihydroxy-2,7-dimethoxy- (9CI) 2808-46-0 5,8-Dihydroxy-2,7-dimethoxy-1,4-naphthoquinone BRN 1981899 NAPHTHOQUINONE, 5,8-DIHYDROXY-2,7-DIMETHOXY NSC 305977 Spinochrome M