Also Called: Phthalic Acid Anhydride; 1,3-Isobenzofurandione; Phthalic anhydride(Note: To use UN No. 2214 requires the phthalic anyhydride to have more than 0.05% of maleic anyhydride present.);Phthalic anhydride;Phthalsäureanhydrid;Phthals‰ureanhydrid;ftalanhydrid;ftalsyraanhydrid;PTALIK ANHIDRIDE;1,2-BENZENEDICARBOXYLIC ACID ANHYDRIDE;1,3-ISOBENZOFURANDION;邻苯二甲酸酐;พธาลิค แอนไฮไดรด์;Phthalic anhydride [containing maleic anhydride more than 0.05%];FTALIK ANHIDRIDA;無水フタル酸;PHTHALSAEUREANHYDRID;607-009-00-4;Anhydride phtalique