egis-12,233 egis-12,233 egis-12,233 is a drug with applications in scientific research, acting as a potent and selective antagonist for both the 5-ht6 and 5-ht7 serotonin receptor subtypes, with good selectivity over other receptors. it has been shown to increase dopamine release in cochlear tissue, suggesting a role for the 5-ht6 and 5-ht7 receptors in regulation of the hearing system. egis-12,233clinical dataatc codenoneidentifiers iupac name 5,7-dichloro-3-butyl]-3-ethyl-indolin-2-one pubchem cid11525867chemical and physical dataformulac24h28cl3n3omolar mass480.86 g·mol−13d model (jsmol)interactive image smiles c3cc(cl)ccc3n4ccn(cc4)ccccc1(cc)c2cc(cl)cc(cl)c2nc1=o (verify)