1,4-Bis(endothalimido)-2-butyne 4,7-Epoxy-1H-isoindole-1,3(2H)-dione, 2,2'-(2-butyne-1,4-diyl)bis(hexahydro- (9CI) 7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide, N,N'-(2-butynylene)bis- 73806-09-4 N,N'-(2-Butynylene)bis(3,6-endoxohexahydrophthalimide) NSC 191831 Phthalimide, N,N'-(2-butynylene)bis(3,6-endoxohexahydro-