Epsal

http://classyfire.wishartlab.com/tax_nodes/C0000001
http://classyfire.wishartlab.com/tax_nodes/C0000424
http://classyfire.wishartlab.com/tax_nodes/C0000446
http://classyfire.wishartlab.com/tax_nodes/C0000699
http://classyfire.wishartlab.com/tax_nodes/C0000699
http://classyfire.wishartlab.com/tax_nodes/C0003866
http://classyfire.wishartlab.com/tax_nodes/C0003944
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:32599
http://www.hmdb.ca/metabolites/HMDB0014791
http://www.genome.jp/dbget-bin/www_bget?drug:D01108
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=24083
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46508411
https://www.chemspider.com/Chemical-Structure.22515.html
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=1311625
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=32599
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL2021423
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000201
http://www.pharmgkb.org/drug/PA450302
http://www.rxlist.com/cgi/generic3/mgso4.htm
https://www.drugs.com/cdi/magnesium-sulfate.html
https://en.wikipedia.org/wiki/Magnesium_sulfate