METATAGS:ortho-Phthalaldehyde; 1,2-BENZENEDICARBALDEHYDE; 1,2-Benzenedicarboxaldehyde [ACD/Index Name]; 1,2-Phthalic dicarboxaldehyde 2-Phthalaldehyde; 4-07-00-02138 (Beilstein Handbook Reference) [Beilstein]; 643-79-8 [RN]; ben