Synonyms: 1,4-Naphthalenedione,2-methyl-3-(3,7,11,15,19,23,27,31,35,39,43,47,51-tridecamethyl-2,6,10,14,18,22,26,30,34,38,42,46,50-dopentacontatridecaenyl)-,(all-E)-; 1,4-Naphthoquinone,2-methyl-3-(3,7,11,15,19,23,27,31,35,39,43,47,51-tridecamethyl-2,6,10,14,18,22,26,30,34,38,42,46,50-dopentacontatridecaenyl)-(8CI); MK 13; Menaquinone 13