化学式C20H22N2O(摩尔质量 306.41 g/mol)可以指:

同系物导航
C20H24N2O
C19H20N2O C20H22N2O C21H24N2O
C20H20N2O

C20H22N2 C20H22N2O2
C20H21NO C20H23N3O