gat100 gat100 gat100 is a negative allosteric modulator of the cannabinoid cb1 receptor. gat100identifiers iupac name 3-ethyl-5-isothiocyanato-n-(4-(piperidin-1-yl)phenethyl)-1h-indole-2-carboxamide cas number1663564-42-8chemspider58145179chemical and physical dataformulac25h28n4osmolar mass432.59 g·mol−13d model (jsmol)interactive image smiles ccc1c(c2ccc(cc12)n=c=s)c(=o)nccc3ccc(cc3)n4ccccc4 inchi inchi=1s/c25h28n4os/c1-2-21-22-16-19(27-17-31)8-11-23(22)28-24(21)25(30)26-13-12-18-6-9-20(10-7-18)29-14-4-3-5-15-29/h6-11,16,28h,2-5,12-15h2,1h3,(h,26,30)key:yiylmdvrsnxyot-uhfffaoysa-n