xamoterol xamoterol xamoterol is a cardiac stimulant. it works by binding to the β1 adrenergic receptor. it is a 3rd generation adrenergic β receptor partial agonist. it provides cardiac stimulation at rest but it acts as a blocker during exercise. xamoterolclinical dataatc codec01cx07 (who) identifiers iupac name (rs)-n-(2-ethyl)morpholine-4-carboxamide cas number81801-12-9 npubchem cid155774iuphar/bps538chemspider137213 yunii7he0jql703keggd06328 ychemblchembl75753 ycomptox dashboard (epa)dtxsid8045222 chemical and physical dataformulac16h25n3o5molar mass339.392 g·mol−13d model (jsmol)interactive image smiles o=c(nccncc(o)coc1ccc(o)cc1)n2ccocc2 inchi inchi=1s/c16h25n3o5/c20-13-1-3-15(4-2-13)24-12-14(21)11-17-5-6-18-16(22)19-7-9-23-10-8-19/h1-4,14,17,20-21h,5-12h2,(h,18,22) ykey:dxposrchidywhw-uhfffaoysa-n y ny (what is this?) (verify)