The betaine will collapse to the alkene only when these two functions are eclipsed.只有当这两个基团移至重迭位置时碘盐才能裂解为烯烃.Ingredients: Purified water, Cucumber Extract, Hyaluronic Acid Myristic Acid, Cocoamidopropyl Betaine.主要成份: 维他命E...

n.甜菜碱，三甲铵乙内酯...

lycobetaine的音标：lycobetaine的英式发音音标为：[laɪkəʊbɪ'teɪn]lycobetaine的美式发音音标为：[laɪkoʊbɪ'teɪn]...

betaine的音标：betaine的英式发音音标为：['bi:təi:n]betaine的美式发音音标为：['bitəin]...

石蒜碱内铵盐...