Optiprofen

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:5130
http://www.hmdb.ca/metabolites/HMDB0014850
http://www.genome.jp/dbget-bin/www_bget?drug:D00330
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=3394
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505550
https://www.chemspider.com/Chemical-Structure.3277.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50074922
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=4502
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=5130
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL563
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000621
http://www.pharmgkb.org/drug/PA449683
http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=4194
http://www.rxlist.com/cgi/generic2/flurbipro.htm
https://www.drugs.com/cdi/flurbiprofen-drops.html
http://www.pdrhealth.com/drug_info/rxdrugprofiles/drugs/ans1023.shtml
https://en.wikipedia.org/wiki/Flurbiprofen