Article · Wikipedia archive · Last revised Aug 5, 2026

C4H4O

The molecular formula C4H4O may refer to:

Last revised

Aug 5, 2026

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≈ 1 min

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Related molecular formulas
	C₄H₆O
C₃H₂O	C₄H₄O	C₅H₆O
	C₄H₂O
C₄H₄		C₄H₄O₂

The molecular formula C₄H₄O may refer to:

Theoretical isomers of C₄H₄O showing tautomerisation source ↗