Codein

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:16714
http://www.genome.jp/dbget-bin/www_bget?cpd:C06174
http://www.hmdb.ca/metabolites/HMDB0004995
http://www.genome.jp/dbget-bin/www_bget?drug:D03580
http://www.genome.jp/dbget-bin/www_bget?cpd:C06174
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=5284371
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46507764
https://www.chemspider.com/Chemical-Structure.4447447.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50105098
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=1545976
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=16714
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL485
https://zinc.docking.org/substances/ZINC000003806721
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000213
http://www.pharmgkb.org/drug/PA449088
http://www.rxlist.com/cgi/generic/codphos.htm
https://www.drugs.com/cdi/codeine-phosphate-soluble-tablets.html
https://en.wikipedia.org/wiki/Codeine