sb-242084 sb-242084 sb-242084 is a psychoactive drug and research chemical which acts as a selective antagonist for the 5ht2c receptor. it has anxiolytic effects, and enhances dopamine signalling in the limbic system, as well as having complex effects on the dopamine release produced by cocaine, increasing it in some brain regions but reducing it in others. it has been shown to increase the effectiveness of the selective serotonin reuptake inhibitor (ssri) class of antidepressants, and may also reduce their side effects. in animal studies, sb-242084 produced stimulant-type activity and reinforcing effects, somewhat similar to but much weaker than cocaine or amphetamines. sb-242084identifiers iupac name 6-chloro-5-methyl-n-indoline-1-carboxamide cas number181632-25-7pubchem cid3644637iuphar/bps193chemspider2878619chemblchembl14563comptox dashboard (epa)dtxsid70394600 chemical and physical dataformulac21h19cln4o2molar mass394.86 g·mol−13d model (jsmol)interactive image smiles cc1cc2ccn(c2cc1cl)c(=o)nc(cc4)cnc4oc3cccnc3c inchi inchi=1s/c21h19cln4o2/c1-13-10-15-7-9-26(18(15)11-17(13)22)21(27)25-16-5-6-20(24-12-16)28-19-4-3-8-23-14(19)2/h3-6,8,10-12h,7,9h2,1-2h3,(h,25,27)key:giuzeijufoptmr-uhfffaoysa-n