117874-89-2
2-(2,5-dichloro-phenylhydrazono)-propionic acid
→
104115-70-0
4,7-dichloro-indole-2-carboxylic acid ethyl ester
96129-73-6
4,7-二氯吲哚
96129-74-7
4,7-Dichloro-1H-indole-2-carboxylic acid