Phthalic ternydride ndi organic compound ndi njira ya c6h4 (CO) 2O. Ndi The Soyhyride wa alhhalic acid. Chomera chopanda utoto ndi chofunikira kwambiri pa inshuwaramu, makamaka kupanga ma pulasitiki ambiri

.Fotfic bonhydride ndi gawo lofunikira papakatikati mu makampani opanga ma plastics omwe amapangidwa magawo ambiri a phthate omwe amagwira ntchito ngati mapiko opanga. FTHAIC Fhydride yomwe imagwiritsidwa ntchito pokhapokha ngati yapanga yopanga zinthu zopangidwa monga gykyd, ma alkyd, ndi poryueste.
FTHAIC Fhydride imagwiritsidwanso ntchito ngati cholowa cha Anthraquinone, Phthalemine, Rhodamine, phthalorkocyunine, ma fluorescin, ndi utoto wa xoreourhene.
FTHAIC Fhydride imagwiritsidwa ntchito mu kapangidwe ka Amines woyamba, mafangali a ulimilu ya ulimilu, ndi Thalidomide. Zochitika zina zokhudzana ndi phthalic bornydride zokolola phenolphthalein, benzoly acid, phthalylsilluzozole (chibwibwi antimicrobial acid.