Phthalaldehyde

 Synonyms: OPA
                    o-Phthalic aldehyde
                    1,2-Phthalic dicarboxaldehyde
                    1,2-Benzenedicarboxaldehyde
                     Benzene-1,2-dicarboxaldehyde
Molecular Formula: C8H6O2
Molecular Weight: 134.13
CAS Registry Number: 643-79-8
EINECS: 211-402-2
Melting point: 54-57 ºC
Boiling point: 83-84 ºC
Flash point: 132 ºC
Water solubility: soluble