p-Chlorophenoxyacetic acid (4-CPA) is a synthetic plant growth regulator used to mimic the physiological effects of auxin, thus influencing root and fruit growth. It can also be used as a herbicide at high dosage. p-Chlorophenoxyacetic acid is soluble in ethanol and KOH and most organic solvents. It is very slightly soluble in water, and degradation in aqueous medium has been reported
