C5H4N4O

维基媒体消歧义页
同系物导航
C5H6N4O
C4H2N4O C5H4N4O C6H6N4O
C5H2N4O

C5H4N4 C5H4N4O2
C5H3N3O C5H5N5O

化学式C5H4N4O(摩尔质量:136.112 g/mol)可以指: