Metergolinum

https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:64216
http://www.genome.jp/dbget-bin/www_bget?drug:D07218
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=28693
https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=347829303
https://www.chemspider.com/Chemical-Structure.26687.html
http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=30704
https://mor.nlm.nih.gov/RxNav/search?searchBy=RXCUI&searchTerm=6834
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=64216
https://www.ebi.ac.uk/chembldb/index.php/compound/inspect/CHEMBL19215
https://zinc.docking.org/substances/ZINC000003812975
https://en.wikipedia.org/wiki/Metergoline