phthalic acid molecule 3d, molecular structure, ball and stick model, structural chemical formula aromatic dicarboxylic acid

phthalic acid aromatic dicarboxylic isomers benzenedicarboxylic molecule molecular structure chemical formula model c8h6o4 atom chemistry illustration science organic carbon oxygen hydrogen structural solvent atomic drawing compound phthalate skeletal icon flat isophthalic reaction terephthalic scientific element agent biological ball stick acid