bevonium bevonium bevonium is an antimuscarinic with antispasmodic and bronchodilating properties. bevoniumclinical dataatc codea03ab13 (who) identifiers iupac name 2--1,1-dimethylpiperidinium cas number33371-53-8 ypubchem cid31800chemspider29489 yunii34b0471e08chemblchembl1882461 ncomptox dashboard (epa)dtxsid0048341 chemical and physical dataformulac22h28no3+molar mass354.470 g·mol−13d model (jsmol)interactive image smiles o=c(occ1(c)(c)cccc1)c(o)(c2ccccc2)c3ccccc3 inchi inchi=1s/c22h28no3/c1-23(2)16-10-9-15-20(23)17-26-21(24)22(25,18-11-5-3-6-12-18)19-13-7-4-8-14-19/h3-8,11-14,20,25h,9-10,15-17h2,1-2h3/q+1 ykey:uhumrjkdooeqig-uhfffaoysa-n y ny (what is this?) (verify)