Sub Group: Research Compounds Catalog Number: 11508 Formula: C31H40O2 CAS Number: 863-61-6 Molecular Weight: 444.65 Synonyms: (E,E,E)-2-Methyl-3-(3,7,11,15-tetramethyl-2,6,10,14-hexadecatetraenyl)-1,4-naphthalenedioneMenatetrenoneVitamin K2(20)KaytwoMK 4