Didan

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:490877
http://www.hmdb.ca/metabolites/HMDB0015037
http://www.genome.jp/dbget-bin/www_bget?drug:D00296
http://www.genome.jp/dbget-bin/www_bget?cpd:C06953
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=50599
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46506255
https://www.chemspider.com/Chemical-Structure.45864.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50404252
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=3364
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=490877
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1460
https://zinc.docking.org/substances/ZINC000013597823
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DNC000528
http://www.pharmgkb.org/drug/PA449301
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/2DI
http://www.rxlist.com/cgi/generic3/didanosine.htm
https://www.drugs.com/cdi/didanosine-chewable-dispersible-buffered-tablets.html
http://www.pdrhealth.com/drug_info/rxdrugprofiles/drugs/vid1482.shtml
https://en.wikipedia.org/wiki/Didanosine