chloracyzine chloracyzine chloracyzine is an antidepressant and coronary vasodilator of the phenothiazine class, invented in russia and used as an anti-anginal agent. it was found not to have antipsychotic activity, but was instead the first russian tricyclic drug with antidepressant action. chloracyzineidentifiers iupac name 1-(2-chloro-10h-phenothiazin-10-yl)-3-(diethylamino)-1-propanone cas number800-22-6 ypubchem cid13113chemspider12564uniitz913swn6mchemblchembl290624comptox dashboard (epa)dtxsid6046183 chemical and physical dataformulac19h21cln2osmolar mass360.90 g·mol−13d model (jsmol)interactive image smiles ccn(cc)ccc(=o)n1c2=cc=cc=c2sc3=c1c=c(c=c3)cl inchi inchi=1s/c19h21cln2os/c1-3-21(4-2)12-11-19(23)22-15-7-5-6-8-17(15)24-18-10-9-14(20)13-16(18)22/h5-10,13h,3-4,11-12h2,1-2h3key:zzkwnlzuyagvot-uhfffaoysa-n