Northix

http://classyfire.wishartlab.com/tax_nodes/C0000000
http://classyfire.wishartlab.com/tax_nodes/C0002448
http://classyfire.wishartlab.com/tax_nodes/C0000134
http://classyfire.wishartlab.com/tax_nodes/C0001286
http://classyfire.wishartlab.com/tax_nodes/C0000135
http://classyfire.wishartlab.com/tax_nodes/C0003899
http://classyfire.wishartlab.com/tax_nodes/C0004647
http://classyfire.wishartlab.com/tax_nodes/C0004646
http://classyfire.wishartlab.com/tax_nodes/C0002279
http://classyfire.wishartlab.com/tax_nodes/C0001661
http://classyfire.wishartlab.com/tax_nodes/C0001897
http://classyfire.wishartlab.com/tax_nodes/C0004557
http://classyfire.wishartlab.com/tax_nodes/C0000469
http://classyfire.wishartlab.com/tax_nodes/C0004150
http://classyfire.wishartlab.com/tax_nodes/C0003073
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18357
http://www.genome.jp/dbget-bin/www_bget?cpd:C00547
http://www.hmdb.ca/metabolites/HMDB0000216
http://www.genome.jp/dbget-bin/www_bget?drug:D00076
http://www.genome.jp/dbget-bin/www_bget?cpd:C00547
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=439260
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46506201
https://www.chemspider.com/Chemical-Structure.388394.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50029051
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=7512
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=18357
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1437
https://zinc.docking.org/substances/ZINC000000057624
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DNC001034
http://www.pharmgkb.org/drug/PA450649
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/LNR
http://www.rxlist.com/cgi/generic/norepinephrine.htm
https://www.drugs.com/mtm/norepinephrine.html
https://en.wikipedia.org/wiki/Norepinephrine