C2H2N2O

维基媒体消歧义页
同系物導航
C2H4N2O
CN2O C2H2N2O C3H4N2O
C2N2O

C2H2N2 C2H2N2O2
C2HNO C2H3N3O

化學式C2H2N2O(摩爾質量70.05 g/mol)可以指: