Term Name:	4,5-diamino-1,2,4a,4b,7,8,8a,8b-octahydro-1,3,6,8-tetraazabiphenylene-2,7-dione
Synonyms:	4,5-diamino-1,4a,4b,8,8a,8b-hexahydrocyclobuta[1,2-d:4,3-d']dipyrimidine-2,7-dione, cyclobutane cytosine dimer, cytosine dimer
Definition:	A member of the class of cyclobutadipyrimidines that is 1,4a,4b,8,8a,8b-hexahydrocyclobuta[1,2-d:4,3-d']dipyrimidine-2,7-dione carrying two additional amino substituents at positions 4 and 5.
Ontology:	ChEBI [CHEBI:116510]  ( EBI )