2-N-[4-[[4-[(4,6-diamino-1,3,5-triazin-2-yl)amino]phenyl]methyl]phenyl]-1,3,5-triazine-2,4,6-triamine

[亚甲基双(对亚苯基)]二异腈

4-amino-4'-isocyanodiphenylmethane

3,6-二羟基吖啶

2,2'-(亚甲基二对亚苯基)二(1,3-二氧代异吲哚啉-5-羧酸)