Bleomicin

http://www.lipidmaps.org/data/LMSDRecord.php?LMID=LMPK14000006
http://www.hmdb.ca/metabolites/HMDB0014435
http://www.genome.jp/dbget-bin/www_bget?cpd:C06854
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=5360373
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46509116
https://www.chemspider.com/Chemical-Structure.4514492.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50122169
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=1622
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=22907
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL403664
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000531
http://www.pharmgkb.org/drug/PA448645
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/BLM
http://www.rxlist.com/cgi/generic3/bleomycin.htm
https://www.drugs.com/cdi/bleomycin.html
https://en.wikipedia.org/wiki/Bleomycin