1189-71-5
氯磺酰异氰酸酯
+
92-67-1
4-氨基联苯
→
~27%
13262-48-1
(4-phenylphenyl)urea
556-89-8
硝基脲
92-95-5
4-联苯异氰酸盐
590-28-3
氰酸钾