Term Name:	pyrimidopyrimidine
Synonyms:	pyrimidopyrimidines
Definition:	An organic heterobicyclic compound with a skeleton consisting of two pyrimidine rings that are ortho-fused to each other at any position.
Ontology:	ChEBI [CHEBI:48514] ( EBI )

Relationships

is a type of:	organic heterobicyclic compound organonitrogen heterocyclic compound
has subtype:	1-(4-fluorophenyl)-7-(4-methylphenyl)-5,5-bis(trifluoromethyl)-8H-pyrimido[4,5-d]pyrimidine-2,4-dione 7-amino-1-methyl-3-[2-methyl-5-({[3-(trifluoromethyl)phenyl]carbonyl}amino)phenyl]-2-oxo-2,3-dihydropyrimido[4,5-d]pyrimidin-1-ium dipyridamole