bufuralol bufuralol bufuralol is a potent beta-adrenoceptor antagonist with partial agonist activity. it is metabolized by cyp2d6. bufuralol names preferred iupac name 2-(tert-butylamino)-1-(7-ethyl-1-benzofuran-2-yl)ethan-1-ol other names 2-(tert-butylamino)-1-(7-ethylbenzofuran-2-yl)ethan-1-ol2-(tert-butylamino)-1-(7-ethyl-1-benzofuran-2-yl)ethanol identifiers cas number 54340-62-4 y 3d model (jsmol) interactive image chembl chembl296035 chemspider 64777 echa infocard 100.053.720 pubchem cid 71733 unii 891h89gft4 comptox dashboard (epa) dtxsid30866414 inchi inchi=1s/c16h23no2/c1-5-11-7-6-8-12-9-14(19-15(11)12)13(18)10-17-16(2,3)4/h6-9,13,17-18h,5,10h2,1-4h3 smiles oc(c2oc1c(cccc1c2)cc)cnc(c)(c)c properties chemical formula c16h23no2 molar mass 261.365 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references most beta blockers are aryloxypropanolamine-based. in this rare exception, the benzofuran oxygen is part of a ring instead of derived from the epichlorohydrin precursor.