Orpin

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:474053
http://www.genome.jp/dbget-bin/www_bget?cpd:C06880
http://www.hmdb.ca/metabolites/HMDB0015422
http://www.genome.jp/dbget-bin/www_bget?drug:D02299
http://www.genome.jp/dbget-bin/www_bget?cpd:C06880
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=33255
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46506123
https://www.chemspider.com/Chemical-Structure.30723.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50370587
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=2180
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=474053
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1435
https://zinc.docking.org/substances/ZINC000003830405
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000449
http://www.pharmgkb.org/drug/PA448839
http://www.rxlist.com/cgi/generic/cefsod.htm
https://www.drugs.com/cdi/cefazolin.html
https://en.wikipedia.org/wiki/Cefazolin