Penglobe

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:2968
http://www.hmdb.ca/metabolites/HMDB0015540
http://www.genome.jp/dbget-bin/www_bget?cpd:C08122
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=441397
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46507859
https://www.chemspider.com/Chemical-Structure.390135.html
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=18687
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=2968
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1583
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP001162
http://www.pharmgkb.org/drug/PA164745461
https://www.drugs.com/mtm/bacampicillin.html
https://en.wikipedia.org/wiki/Bacampicillin