D2000

http://classyfire.wishartlab.com/tax_nodes/C0000000
http://classyfire.wishartlab.com/tax_nodes/C0000012
http://classyfire.wishartlab.com/tax_nodes/C0000258
http://classyfire.wishartlab.com/tax_nodes/C0001460
http://classyfire.wishartlab.com/tax_nodes/C0001460
http://classyfire.wishartlab.com/tax_nodes/C0001553
http://classyfire.wishartlab.com/tax_nodes/C0001661
http://classyfire.wishartlab.com/tax_nodes/C0001292
http://classyfire.wishartlab.com/tax_nodes/C0004150
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:28940
http://www.genome.jp/dbget-bin/www_bget?cpd:C05443
http://www.lipidmaps.org/data/LMSDRecord.php?LMID=LMST03020000
http://www.hmdb.ca/metabolites/HMDB0000876
http://www.genome.jp/dbget-bin/www_bget?drug:D00188
http://www.genome.jp/dbget-bin/www_bget?cpd:C05443
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=5280795
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46506365
https://www.chemspider.com/Chemical-Structure.4444353.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50030475
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=1244014
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=28940
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL1042
https://zinc.docking.org/substances/ZINC000004474460
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP001273
http://www.pharmgkb.org/drug/PA164748138
https://www.ebi.ac.uk/pdbe-srv/pdbechem/chemicalCompound/show/VD3
https://www.drugs.com/mtm/cholecalciferol.html
http://www.pdrhealth.com/drug_info/nmdrugprofiles/nutsupdrugs/vit_0265.shtml
https://en.wikipedia.org/wiki/Cholecalciferol