phthalaldehyde
Phthalaldehyde, also known as o-phthalaldehyde or 1,2-benzenedicarboxaldehyde, is an aromatic dialdehyde with the formula C8H6O2. It consists of a benzene ring bearing two formyl groups at adjacent positions (ortho). The compound is a colorless to pale yellow solid that is soluble in many organic solvents and reacts readily at the aldehyde groups.
Chemically, phthalaldehyde is reactive toward nucleophiles such as amines and thiols. It forms Schiff bases with
Industrial and medical applications center on two main uses. The ortho isomer, commonly abbreviated as OPA,
Safety and handling note that phthalaldehyde is an irritant and can be a sensitizer. It should be