Cefapirinum

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:554446
http://www.hmdb.ca/metabolites/HMDB0015270
http://www.genome.jp/dbget-bin/www_bget?cpd:C06896
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=30699
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505227
https://www.chemspider.com/Chemical-Structure.28486.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50370592
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=2238
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=554446
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1599
https://zinc.docking.org/substances/ZINC000003830511
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP001160
http://www.pharmgkb.org/drug/PA164749340
https://en.wikipedia.org/wiki/Cefapirin