108-31-6
马来酸酐
+
95-53-4
邻甲苯胺
→
~30%
4067-01-0
1-(2-甲基苯基)-1H-吡咯-2,5-二酮
67-56-1
甲醇
53616-19-6
4-(2-methylanilino)-4-oxobut-2-enoic acid
72889-88-4
methyl (Z)-4-oxo-4-(o-tolylamino)but-2-enoate
3052-50-4
顺丁烯二酸单甲酯
37902-59-3
N-o-tolyl-maleamic acid