5-chloro-1-methyl-3,4-dihydro-2H-pyrrol-1-ium,chloride

3,4-dichlorobenzoyl isocyanate

4-乙烯基苯甲酰氯

[4-(二甲基氨基)苯基](氧代)乙酰氯

3-(2-氯羰基-乙基二磺酰基)-丙酰氯