Term Name:	dicarbide(2-)
Synonyms:	[C2](2-), acetylenediide, acetylide, acetylide dianion, acetylide ion, C2, C2(2-), dicarbide(2-), ethynediide
Definition:	The dianion formed by loss of the two protons from acetylene (ethyne).
Ontology:	ChEBI [CHEBI:30081]  ( EBI )