Carboxylic acid
…a flavor and preservative in food and beverages), ethylenediaminetetraacetic acid (chelating agent), fatty acids (coatings), maleic acid (polymers), propionic acid (food preservative), terephthalic acid (polymers). Important carboxylate salts are soaps. Ribulose-1,5-bisphosphate carboxylase/oxygenase (aka RuBisCo…