苯基脲

N,N'-(4,4'-methanediyl-diphenyl)-biscarbamic acid bis(2,4-di-tert-amylphenyl) ester

三光气

二乙基(亚甲基二-4,1-亚苯基)二氨基甲酸酯

N,N'-(4,4'-methanediyl-di-phenyl)-bis-carbamic acid dipropyl ester