Displaying 5 results of Terbuthylazine Stable Isotopes Terbuthylazine Stable Isotopes are non-radioactive forms of the herbicide Terbuthylazine, which is commonly used to control weeds in agriculture. These stable isotopes have the same chemical and physical properties as the regular isotopes, but their atomic nuclei have a different number of neutrons. They are used in research and development to study the behavior and fate of Terbuthylazine in the environment, as well as in forensic investigations to determine its presence and origin in soil and water samples.