thumb|right|300px|C4H4 isomers with CAS registry numbers The molecular formula C4H4 (molar mass: 52.07 g/mol) may refer to:
thumb|right|300px|C4H4 isomers with CAS registry numbers The molecular formula C4H4 (molar mass: 52.07 g/mol) may refer to: Butatriene Cyclobutadiene Cyclobutyne Methylenecyclopropene Tetrahedrane Vinylacetylene
Category:Molecular formulas
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).