This product is maxture of cisisomer and maleinoid of 2-methyl-3-(3,7,11,15-tetramethyl-2-hexadecenyl)-1,4diketon,naphthalene. 【CAS No.】 84-80-0 【Synonym】Phytomenadione, phylloquinone 【Characteristics】 Yellow to orange transparent viscous liquid; Odourless or almost odourless. 【Molecular formula】 C31H46O2 【Molecular weight】 450.705 【Reference standard】 CHP,USP,BP,EP 【Storage】 Room temperature,light resistance, in closed container.