Based on the SMILES O=C([O-])C#CC(=O)[O-], the molecule can be described as:
The molecule is a dicarboxylic acid dianion obtained by the deprotonation of both the carboxy groups of acetylenedicarboxylic acid. It is a C4-dicarboxylate and a dicarboxylic acid dianion. It is a conjugate base of an acetylenedicarboxylate(1-).
Based on the {SMILES__description} {#representation |!}{SMILES#}, the molecule can be described {#by|as!}:
{description#}
O=C([O-])C#CC(=O)[O-]
but-2-ynedioate
The molecule is a dicarboxylic acid dianion obtained by the deprotonation of both the carboxy groups of acetylenedicarboxylic acid. It is a C4-dicarboxylate and a dicarboxylic acid dianion. It is a conjugate base of an acetylenedicarboxylate(1-).