benoxathian benoxathian benoxathian is an α1-adrenergic receptor antagonist. it was studied in animals for its antihypertensive (blood pressure lowering) effects in the 1980s. benoxathian names iupac name n-(2,3-dihydro-1,4-benzoxathiin-2-ylmethyl)-2-(2,6-dimethoxyphenoxy)ethanamine identifiers cas number 92642-94-9 3d model (jsmol) interactive image chemspider 2235 pubchem cid 2325 comptox dashboard (epa) dtxsid10919033 inchi inchi=1s/c19h23no4s/c1-21-16-7-5-8-17(22-2)19(16)23-11-10-20-12-14-13-25-18-9-4-3-6-15(18)24-14/h3-9,14,20h,10-13h2,1-2h3key: qauvahyhklrjcq-uhfffaoysa-ninchi=1/c19h23no4s/c1-21-16-7-5-8-17(22-2)19(16)23-11-10-20-12-14-13-25-18-9-4-3-6-15(18)24-14/h3-9,14,20h,10-13h2,1-2h3key: qauvahyhklrjcq-uhfffaoyax smiles coc1=c(c(=cc=c1)oc)occncc2csc3=cc=cc=c3o2 properties chemical formula c19h23no4s molar mass 361.46 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references