C20H22N4O

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C20H24N4O
C19H20N4O C20H22N4O C21H24N4O
C20H20N4O
C20H22N4 C20H22N4O2
C20H21N3O C20H23N5O

化學式C20H22N4O(摩爾質量:334.41 g/mol)可能指: