1,2,3,4-Tetrahydro-2-methyl-1, 4-dioxo-2-naphthalenesulfonic acid 130-36-9 130-37-0 2-Naphthalenesulfonic acid, 1,2,3,4-tetrahydro-2-methyl-1,4-dioxo- 23496-26-6 6147-37-1 Menadione bisulfite