21716-89-2 3-(2-Aminoethyl)indol-5-ol, succinate Butanedioic acid, compd. with 3-(2-aminoethyl)-1H-indol-5-ol (1:1) (8CI) INDOL-5-OL, 3-(2-AMINOETHYL)-, SUCCINATE Serotonin succinate Succinic acid, compd. with 3-(2-aminoethyl)indol-5-ol (1:1)