Ast Ex

http://classyfire.wishartlab.com/tax_nodes/C0000000
http://classyfire.wishartlab.com/tax_nodes/C0002448
http://classyfire.wishartlab.com/tax_nodes/C0002279
http://classyfire.wishartlab.com/tax_nodes/C0000033
http://classyfire.wishartlab.com/tax_nodes/C0000033
http://classyfire.wishartlab.com/tax_nodes/C0003899
http://classyfire.wishartlab.com/tax_nodes/C0004646
http://classyfire.wishartlab.com/tax_nodes/C0001661
http://classyfire.wishartlab.com/tax_nodes/C0001897
http://classyfire.wishartlab.com/tax_nodes/C0002228
http://classyfire.wishartlab.com/tax_nodes/C0000286
http://classyfire.wishartlab.com/tax_nodes/C0004557
http://classyfire.wishartlab.com/tax_nodes/C0004150
http://classyfire.wishartlab.com/tax_nodes/C0003073
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:2549
http://www.hmdb.ca/metabolites/HMDB0001937
http://www.genome.jp/dbget-bin/www_bget?drug:D02147
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=2083
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505312
https://www.chemspider.com/Chemical-Structure.1999.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=25769
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=435
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=2549
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL714
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DNC000873
http://www.pharmgkb.org/drug/PA448068
http://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=558
http://www.rxlist.com/cgi/generic/duoneb.htm
https://en.wikipedia.org/wiki/Salbutamol