Broncoterol

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:174690
http://www.hmdb.ca/metabolites/HMDB0015477
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=2783
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46508373
https://www.chemspider.com/Chemical-Structure.2681.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=27958
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=2580
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=174690
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL49080
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000945
http://www.pharmgkb.org/drug/PA164745640
https://en.wikipedia.org/wiki/Clenbuterol