Xelec

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:41423
http://www.hmdb.ca/metabolites/HMDB0005014
http://www.genome.jp/dbget-bin/www_bget?drug:D00567
http://www.genome.jp/dbget-bin/www_bget?cpd:C07589
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=2662
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505596
https://www.chemspider.com/Chemical-Structure.2562.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=11639
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=140587
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=41423
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL118
https://zinc.docking.org/substances/ZINC000002570895
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000737
http://www.pharmgkb.org/drug/PA448871
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/CEL
http://www.rxlist.com/cgi/generic/coxib.htm
https://www.drugs.com/celecoxib.html
https://en.wikipedia.org/wiki/Celecoxib