(R-(R*,R*(E)))-2-Methyl-3-(3,7,11,15-tetramethyl-2-hexadecenyl)-1,4-naphthalenediol diacetate 1,4-Naphthalenediol, 2-methyl-3-(3,7,11,15-tetramethyl-2-hexadecenyl)-, diacetate, (R-(R*,R*(E)))- 604-87-5 Vitamin K1 diacetate