Ergotocine

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:4822
http://www.genome.jp/dbget-bin/www_bget?cpd:C07543
http://www.hmdb.ca/metabolites/HMDB0015383
http://www.genome.jp/dbget-bin/www_bget?drug:D07905
http://www.genome.jp/dbget-bin/www_bget?cpd:C07543
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=443884
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=46506922
https://www.chemspider.com/Chemical-Structure.391970.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50390991
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=4021
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=4822
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL119443
https://zinc.docking.org/substances/ZINC000053174604
http://bidd.nus.edu.sg/group/cjttd/ZFTTDDRUG.asp?ID=DAP000227
http://www.pharmgkb.org/drug/PA449487
https://www.drugs.com/cdi/ergonovine.html
https://en.wikipedia.org/wiki/Ergonovine