1,4-naphthalenedione, 2-methyl- 2-Methyl-1,4-naphthalenedione 58-27-5 Kanone Kappaxin Kativ-G Kayklot Kayquinone Kipca Klottone Kolklot Menaphthone Methyl-1,4-naphthalenedione Methyl-1,4-naphthoquinone Panosine Thyloquinone VK3 Vitamin K2(0) Vitamin K3