| 英文同义词: | 1,4-Dimethyl-1,2,3,4,5,6-hexahydrocyclobuta[b]pyrazine-5,6-dione;2,5-Diazabicyclo[4.2.0]oct-1(6)-ene-7,8-dione,2,5-dimethyl-;1,2-DIOXO-3,6-DIMETHYL-1,2,3,4,5,6-HEXAHYDROCYCLOBUTAPYRAZINE;2,5-dimethyl-2,5-diazabicyclo[4.2.0]oct-1(6)-ene-7,8-dione |