Synonyms: (?à)-1,2,3,4-Tetrahydro-3-carboxy-2-carboline;1,2,3,4-Tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic acid;1,2,3,4-Tetrahydro-b-carboline-3-carboxylic acid;1,2,3,4-Tetrahydropyrido[3,4-b]indole-3-carboxylic acid;2,3,4,9-Tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic acid;DL-1,2,3,4-Tetrahydro-3-carboxy-2-carboline; NSC 96912; dl-1,2,3,4-Tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylicacid