Buphenox

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:3213
http://www.hmdb.ca/metabolites/HMDB0015024
http://www.genome.jp/dbget-bin/www_bget?drug:D00247
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=2471
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46508147
https://www.chemspider.com/Chemical-Structure.2377.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=25903
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=1808
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=3213
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1072
https://zinc.docking.org/substances/ZINC000003813061
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000361
http://www.pharmgkb.org/drug/PA448682
http://www.rxlist.com/cgi/generic2/bumetan.htm
https://www.drugs.com/cdi/bumetanide.html
http://www.pdrhealth.com/drug_info/rxdrugprofiles/drugs/bum1058.shtml
https://en.wikipedia.org/wiki/Bumetanide