Butalan

http://classyfire.wishartlab.com/tax_nodes/C0000000
http://classyfire.wishartlab.com/tax_nodes/C0000002
http://classyfire.wishartlab.com/tax_nodes/C0001346
http://classyfire.wishartlab.com/tax_nodes/C0000075
http://classyfire.wishartlab.com/tax_nodes/C0000292
http://classyfire.wishartlab.com/tax_nodes/C0002023
http://classyfire.wishartlab.com/tax_nodes/C0002389
http://classyfire.wishartlab.com/tax_nodes/C0003033
http://classyfire.wishartlab.com/tax_nodes/C0004139
http://classyfire.wishartlab.com/tax_nodes/C0004557
http://classyfire.wishartlab.com/tax_nodes/C0000278
http://classyfire.wishartlab.com/tax_nodes/C0003940
http://classyfire.wishartlab.com/tax_nodes/C0004150
http://classyfire.wishartlab.com/tax_nodes/C0001831
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:3228
http://www.hmdb.ca/metabolites/HMDB0014382
http://www.genome.jp/dbget-bin/www_bget?drug:D03180
http://www.genome.jp/dbget-bin/www_bget?cpd:C07827
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=2479
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505051
https://www.chemspider.com/Chemical-Structure.2385.html
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=477631
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=3228
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL449
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000667
http://www.pharmgkb.org/drug/PA164743463
https://www.drugs.com/cdi/butabarbital.html
https://en.wikipedia.org/wiki/Butabarbital