1,2-Benzenedicarboxylic acid anhydride 1,2-Benzenedicarboxylic anhydride 1,3-Dioxophthalan 1,3-Isobenzofurandione 1,3-Phthalandione 39363-63-8 85-44-9 AI3-04869 Anhydrid kyseliny ftalove [Czech] Anhydride phtalique [French] Anidride ftalica [Italian] CCRIS 519 EINECS 201-607-5 ESEN Ftaalzuuranhydride [Dutch] Ftalanhydrid [Czech] Ftalowy bezwodnik [Polish] HSDB 4012 Isobenzofuran, 1,3-dihydro-1,3-dioxo- NCI-C03601 NSC 10431 PHTHALIC ANHYDRIDE Pan Phthalandione Phthalic acid anhydride Phthalic anhydride (molten) Phthalic anhydride with