Term Name:	cyclo[18]carbon
Synonyms:	carbon-18, cyclooctadeca-1,3,5,7,9,11,13,15,17-nonayne
Definition:	An allotrope of carbon with molecular formula C18 existing as a ring of eighteen carbon atoms, connected by alternating triple and single bonds.
Ontology:	ChEBI [CHEBI:146233]  ( EBI )