Ican

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:80630
http://www.genome.jp/dbget-bin/www_bget?cpd:C16641
http://www.hmdb.ca/metabolites/HMDB0014900
http://www.genome.jp/dbget-bin/www_bget?drug:D08086
http://www.genome.jp/dbget-bin/www_bget?cpd:C16641
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=60838
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505871
https://www.chemspider.com/Chemical-Structure.54825.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50128267
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=51499
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=80630
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL481
https://zinc.docking.org/substances/ZINC000001612996
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP001339
http://www.pharmgkb.org/drug/PA450085
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/CP0
http://www.rxlist.com/cgi/generic2/irinot.htm
https://www.drugs.com/cdi/irinotecan.html
https://en.wikipedia.org/wiki/Irinotecan