It is known from the previous studies that the polybasic acids ionize at a pH higher than that of its native pKa, as the deprotonation of an acid group becomes progressively inhibited by some of the ionized groups via electrostatic stabilization . We note the carboxylic acid at very low pH (i.e., pH=3), exhibits a hypsochromic shift relative to that at pH 7 as the probability of the formation of electrostatic stabilization is reduced substantially at pH<< pKa. The main claim that we would like to make is that the Bathochromic shift of the carboxylic acid chromophore at a pH~7 and its polybasic character suggest that the dodecanoic acids are in close proximity to each other thus forming H-bonds, as would be expected if the surfactant exists in a self-assembled structure e.g. a micelle or a vesicle.