Carbon

http://classyfire.wishartlab.com/tax_nodes/C0000000
http://classyfire.wishartlab.com/tax_nodes/C0000000
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594
http://www.genome.jp/dbget-bin/www_bget?drug:D03251
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=297
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=347827832
https://www.chemspider.com/Chemical-Structure.4575370.html
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=272
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=27594
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL2106049
https://en.wikipedia.org/wiki/Activated_charcoal_(medication)