2-乙氧基羰基-5-吲哚羧酸; 5-甲酸-吲哚-2-羧酸乙酯;

2-ETHOXYCABONYL-5-INDOLE CARBOXYLIC ACID; 1a-Ethoxy-1,1-diMethyl-2,8-dioxo-1,1a,2,3,8,8a-hexahydrocyclopropa[b]carbazole-6-carboxylic acid; ethyl 5-dicarboxylic acid-1H-indole-2-carboxylate; 1H-Indole-2,5-dicarboxylic acid 2-ethyl ester;