Displaying 2 results of Chlormequat Stable Isotopes Chlormequat is a plant growth regulator that is commonly used in agriculture to increase crop yield and improve plant quality. Stable isotopes of chlormequat are isotopes that have a consistent number of protons and neutrons in their nucleus. These isotopes are useful for studying the uptake and metabolism of chlormequat in plants and for tracing the fate of the compound in the environment.