1073554-07-0
piperazine-1,4-dicarboxylic acid tert-butyl ester butyl ester
→
~10%
50606-32-1
丁基哌嗪-1-羧酸
110-85-0
哌嗪
+
592-34-7
氯甲酸丁酯
1019928-96-1
4-benzylpiperazine-1-carboxylic acid butyl ester