Initial language selection is based on your web browser preferences.
**Systematic name:** Acetic anhydride, or ethanoic anhydride
**Molecular formula:** C₄H₆O₃
**Chemical formula (condensed):** (CH₃CO)₂O
**Molar mass:** 102,09 g/mol
**Information:** Acetic anhydride is a highly reactive substance, which is hydrolyzed to acetic acid when in contact with water.
**Use:** It is used as an acetylation agent, i.e. it is used for the introduction of acetyl groups into organic molecules.