1,3-Bis(4-((4-isocyanatophenyl)methyl)phenyl)-1,3-diazetidine-2,4-dione 1,3-Diazetidine-2,4-dione, 1,3-bis(4-((4-isocyanatophenyl)methyl)phenyl)- 17589-24-1 2,4-Dioxo-1,3-diazetidine-1,3-diylbis(p-phenylenemethylene-p-phenylene) diisocyanate EINECS 241-559-2