681486-10-2
ethyl 2-azido-3-(5-chlorothiophen-2-yl)acrylate
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332099-38-4
ethyl 2-chloro-4H-furo[3,2-b]pyrrole-5-carboxylate
7283-96-7
5-氯噻吩-2-甲醛
332099-40-8
2-氯-4H-噻吩并[3,2-b]吡咯-5-羧酸