1,3-Propandicarboxylic acid is colorless needle-like crystal. Melting point 135 °c (decomposition). Soluble in water and alcohol, insoluble in chloroform and benzene, slightly soluble in ether and ethyl acetate. 1,3-Propandicarboxylic acid is an aliphatic chain molecule that plays a pivotal role in the field of biomedicine. 1,3-acetone dicarboxylic acid (DimethylaceChemicalbooktone-1,3-dicarboxylateor3-oxo-pentanedioicacid) is a medical intermediate, in the twentieth century has been used in the synthesis of atropine, scorpine, this century, because of its discovery of certain antibacterial activity, and widely used in the synthesis of antimicrobial drugs.