Tyrosine

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:17895
http://www.genome.jp/dbget-bin/www_bget?cpd:C00082
http://www.hmdb.ca/metabolites/HMDB0000158
http://www.genome.jp/dbget-bin/www_bget?drug:D00022
http://www.genome.jp/dbget-bin/www_bget?cpd:C00082
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=6057
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46507885
https://www.chemspider.com/Chemical-Structure.5833.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=18129
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=10962
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=58315
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL925
https://zinc.docking.org/substances/ZINC000000266964
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000808
http://www.pharmgkb.org/drug/PA451822
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/TYR
http://www.pdrhealth.com/drug_info/nmdrugprofiles/nutsupdrugs/lty_0256.shtml
https://en.wikipedia.org/wiki/Tyrosine