4-异氰酸基丁酸乙酯

6-[(5,7-disulfonaphthalen-2-yl)carbamoylamino]naphthalene-1,3-disulfonic acid

2,2,2-三氯乙基氨基甲酸酯

4-乙氧基-2-硝基苯基异氰酸酯

4-phenylbut-3-ynyl carbonochloridate