"a colorless crystalline compound found in unripe fruit (such as apples or tomatoes or cherries) and used mainly to make polyester resins"@en-us . "maleic acid"@en-us . . "114096780"@en-us . . "0"^^ . . "14946424-n"^^ . "0"^^ . "maleic acid"^^ . . . "114946424"^^ . . . . . .