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Formulas which begin with C₄H₅O^-

All formulas are in Hill order.

• C₄H₅O^- (CH2=C(CHO)CH2 anion)
• C₄H₅O^- (CH2=CHCH=CHO anion)
• C₄H₅O^- (CH2=C(CH=CH2)O anion)
• C₄H₅O^- (1-CHO-cyclopropanide anion)
• C₄H₅O^- (2-CHO-1-cyclopropanide anion)
• C₄H₅O^- (cyclobutanone enolate anion)
• C₄H₅O^- (CH2=C(Me)CO anion)

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