Costa

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:16163
http://www.genome.jp/dbget-bin/www_bget?drug:D00175
http://www.genome.jp/dbget-bin/www_bget?cpd:C03727
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=193653
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46507988
https://www.chemspider.com/Chemical-Structure.168055.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50213735
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=2023
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=16163
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL396416
https://zinc.docking.org/substances/ZINC000001529732
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/CCS
https://en.wikipedia.org/wiki/Carbocisteine