Furan

http://www.hmdb.ca/metabolites/HMDB0014480
http://www.genome.jp/dbget-bin/www_bget?drug:D00862
http://www.genome.jp/dbget-bin/www_bget?cpd:C08042
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=5447130
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46506509
https://www.chemspider.com/Chemical-Structure.4566720.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50420350
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=7455
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL869
https://zinc.docking.org/substances/ZINC000000897369
http://www.pharmgkb.org/drug/PA164754877
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/NFZ
https://www.drugs.com/cons/nitrofurazone-topical.html
https://en.wikipedia.org/wiki/Nitrofurazone