Similar names: 1,4-Naphthalenedione, 2-methyl-3-[(2E,6E,10E)-3,7,11,15-tetramethyl-2,6,10,14-hexadecatetraen-1-yl]-; 1,4-Naphthalenedione, 2-methyl-3-(3,7,11,15-tetramethyl-2,6,10,14-hexadecatetraenyl)-, (E,E,E)-; 1,4-Naphthalenedione, 2-methyl-3-[(2E,6E,10E)-3,7,11,15-tetramethyl-2,6,10,14-hexadecatetraenyl]- (9CI); 1,4-Naphthoquinone, 2-methyl-3-(3,7,11,15-tetramethyl-2,6,10,14-hexadecatetraenyl)- (8CI); 2-Methyl-3-[(2E,6E,10E)-3,7,11,15-tetramethyl-2,6,10,14-hexadecatetraen-1-yl]-1,4-naphthalenedione; 2-Methyl-3-geranylgeranyl-1,4-naphthoquinone; Glakay; K-viton; Kaytwo; MK4; Menaquinone 4; Menaquinone K4; Menatetrenone; Vitamin K2(20); Vitamin K2-4; Vitamin MK 4