C
2
H
2
O
同系物导航
C
2
H
4
O
CO
C
2
H
2
O
C
3
H
4
O
C
2
O
C
2
H
2
C
2
H
2
O
2
C
2
H
2
O
可以指：
乙烯酮
CAS：
32038-79-2
乙炔醇
CAS：
463-51-4
环氧乙烯
CAS：
157-18-6
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