Ibutilide

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:5856
http://www.hmdb.ca/metabolites/HMDB0014453
http://www.genome.jp/dbget-bin/www_bget?drug:D00648
http://www.genome.jp/dbget-bin/www_bget?cpd:C07753
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=60753
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46507904
https://www.chemspider.com/Chemical-Structure.54755.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50131432
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=41289
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=5856
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL533
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000279
http://www.pharmgkb.org/drug/PA449958
http://www.rxlist.com/cgi/generic/ibutilide.htm
https://www.drugs.com/cdi/ibutilide.html
https://en.wikipedia.org/wiki/Ibutilide