The molecular formula C5H9NO2 (molar mass : 115.13 g/mol) may refer to:
- Allylglycine
- (+)-cis-2-Aminomethylcyclopropane carboxylic acid
- Dimethylaziridine carboxylic acid
- N-Formylmorpholine
- Proline, an amino acid
This set index page lists chemical structure articles associated with the same molecular formula.
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