Phenoterol

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:149226
http://www.hmdb.ca/metabolites/HMDB0015405
http://www.genome.jp/dbget-bin/www_bget?drug:D04157
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=3343
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46509099
https://www.chemspider.com/Chemical-Structure.3226.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50131281
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=4333
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=149226
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL32800
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000946
http://www.pharmgkb.org/drug/PA10079
http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=557
https://en.wikipedia.org/wiki/Fenoterol