Synonyms: 2-Methoxysulfonyltetralin-1,4-dione; pyridine-3-carboxamide;1,2,3,4-Tetrahydro-2-methyl-1,4-dioxonaphthalene-2-sulphonic acid,compound with nicotin-3-amide (1:1);Vitamin K3 MNB(Menadione nicotinamide bisulfite);2-Methyl-1,4-dioxo-1,2,3,4-tetrahydronaphthalene-2-sulfonic acid·3-pyridinecarboxamide;