623-73-4
重氮乙酸乙酯
+
4233-33-4
4-苯基-1,2,4-三唑啉-3,5-二酮
→
~98%
57258-48-7
ethyl 2,4-dioxo-3-phenyl-1,3,5-triazabicyclo[3.1.0]hexane-6-carboxylate
15988-11-1
4-苯基脲唑