Tags: Chemical Compound, Chemical Substance.
o-Phthalaldehyde or ortho-phthalaldehyde is the chemical compound with the formula C6H4(CHO)2. Often abbreviated OPA the molecule is a dialdehyde consisting of two formyl (CHO) groups attached to adjacent carbon centres on a benzene ring. This pale yellow solid is a building block in the synthesis of heterocyclic compounds and a reagent in the analysis of amino acids.
