2600580 DMNQ 2,3-dimethoxy-1,4-naphthoquinone 77 3924521 2,3-diOMe-1,4-NQ 2,3-dimethoxy-1,4-naphthoquinone 3 863847 DIM 2,3-dimethoxy-1,4-naphthoquinone 1 3244916 DMONQ 2,3-dimethoxy-1,4-naphthoquinone 1 2217147 DiOMeNQ 2,3-dimethoxy-1,4-naphthoquinone 1