Efficin

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:17630
http://www.hmdb.ca/metabolites/HMDB0015303
http://www.genome.jp/dbget-bin/www_bget?cpd:C01822
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=6032
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46508178
https://www.chemspider.com/Chemical-Structure.5810.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50031282
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=6099
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=17630
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1384
https://zinc.docking.org/substances/ZINC000008214590
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DNC000201
http://www.pharmgkb.org/drug/PA450137
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/KAN
http://www.rxlist.com/cgi/generic3/kanamycin.htm
https://www.drugs.com/cdi/kanamycin.html
https://en.wikipedia.org/wiki/Kanamycin_A