Asthafree

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:553827
http://www.hmdb.ca/metabolites/HMDB0015478
http://www.genome.jp/dbget-bin/www_bget?drug:D07377
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=54766
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505785
https://www.chemspider.com/Chemical-Structure.49466.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50235800
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=18751
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=553827
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL521589
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000250
http://www.pharmgkb.org/drug/PA164743113
https://en.wikipedia.org/wiki/Bambuterol