TNJ Chemical produces high quality O-Phthalaldehyde OPA CAS 643-79-8 in Anhui China and sells bulk quantity to worldwide customers. To buy O-Phthalaldehyde OPA CAS 643-79-8 as synthesis intermediate, please contact sales@tnjchem.com
o-Phthalaldehyde or ortho-phthalaldehyde (OPA) 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. OPA dissolves in water solution at pH < 11.5. Its solutions degrade upon UV illumination and exposure to air. It is light yellow crystal,melting point:55-56°C.
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