1H-Indole-2-carboxylic acid, ethyl ester (9CI) 2-Carbethoxyindole 3770-50-1 EINECS 223-206-4 Ethyl 1H-indole-2-carboxylate Ethyl indole-2-carboxylate Indole-2-carboxylic acid, ethyl ester (8CI) NSC 10076