1. 吡啶基乌拉唑[4-(3-吡啶基)-1,2,4-三唑烷-3,5-二酮]

吡啶基乌拉唑[4-(3-吡啶基)-1,2,4-三唑烷-3,5-二酮]

Pyridyl Urazol [4-(3-Pyridyl)-1,2,4-triazolidine-3,5-dione]