110-63-4
1,4-丁二醇
+
57-13-6
尿素
→
7119-55-3
4-carbamoyloxybutyl carbamate
91468-66-5
409322-35-6
acenaphthene-3-carbonyl chloride
75-44-5
光气
2157-16-6
1,4-丁二醇二(氯甲酸酯)