adx-47273 adx-47273 adx-47273 is a research pharmaceutical developed by addex therapeutics which acts as a positive allosteric modulator (pam) selective for the metabotropic glutamate receptor subtype mglur5. it has nootropic and antipsychotic effects in animal studies, and has been used as a lead compound to develop improved derivatives. adx-47273identifiers iupac name (s)-(4-fluorophenyl)-(3--oxadiazol-5-yl]piperidin-1-yl)methanone cas number851881-60-2 y 851881-59-9 (r isomer),837413-22-6 (racemate)pubchem cid11383075iuphar/bps1420chemspider9557988 yunii4c4p7l0w63chemblchembl381055 ycomptox dashboard (epa)dtxsid80234386 chemical and physical dataformulac20h17f2n3o2molar mass369.372 g·mol−13d model (jsmol)interactive image smiles fc1=cc=c(c(n2ccc(c2)c3=nc(c4=cc=c(f)c=c4)=no3)=o)c=c1 inchi inchi=1s/c20h17f2n3o2/c21-16-7-3-13(4-8-16)18-23-19(27-24-18)15-2-1-11-25(12-15)20(26)14-5-9-17(22)10-6-14/h3-10,15h,1-2,11-12h2/t15-/m0/s1 ykey:vxqcczhcfbhttd-hnnxbmfysa-n y (verify)