4-CPA CAS:122-88-3 Manufacturer Supplier

4-chlorophenoxy acetic acid (4-CPA), a chlorine derivative of phenoxyacetic acid (PA), is a plant growth regulator used as a herbicide.As plant growth regulator, it can be absorbed by plant via root, stem, leaf, bloom and fruit.It is used to prevent abscission of bloom and fruit, inhibit rooting of beans, promote fruit set, induce formation of seedless fruit, through flower spraying.Also used for ripening and fruit thinning.It performs better when used in combination with 0.1% monopotassium phosphate.It also has herbicidal effect at high dosage.