氯甲酸-2-萘酯

(4-异氰酸丁基)苯

6-(三氟甲基)-2H-3,1-苯并噁嗪-2,4(1h)-二酮

2-isocyanatoethoxymethylbenzene

(9ci)-2,3-二氢-2-氧代-1H-苯并咪唑-1-羰酰氯