2-Methyl-1,4-naphthoquinone product Name: 2-Methyl-1,4-naphthoquinone Synonyms: Menadione (1.05793); Vitamin K2(0); Vitamin K3; menaphthone; Menadione; Vitamin K_3; 2-Methyl-1,4-dihydronaphthalene-1,4-dione Molecular Formula: C11H8O2 Molecular Weight: 172.18 CAS Registry ...