C₃H₄

The molecular formula C₃H₄ (molar mass: 40.06 g/mol, exact mass: 40.0313 u) may refer to:

• Cyclopropene, a cyclic alkene
• Propyne (a.k.a. methylacetylene), a common alkyne
• Propadiene, an allene

Index of chemical compounds with the same molecular formula

This set index page lists chemical structure articles associated with the same molecular formula.
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