Hycomb

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27786
http://www.hmdb.ca/metabolites/HMDB0002308
http://www.genome.jp/dbget-bin/www_bget?drug:D01027
http://www.genome.jp/dbget-bin/www_bget?cpd:C08230
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=70678542
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46505751
https://www.chemspider.com/Chemical-Structure.21403074.html
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=5514
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=27786
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL2103737
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP001336
http://www.pharmgkb.org/drug/PA164768689
http://www.rxlist.com/cgi/generic/cyanokit.htm
https://www.drugs.com/cdi/hydroxocobalamin.html
https://en.wikipedia.org/wiki/Hydroxocobalamin