Aldicarb-sulfoxide is primarily encountered as a breakdown product and metabolite of aldicarb, a carbamate pesticide. Its presence is significant in environmental and biological monitoring due to its toxicological relevance. It retains inhibitory activity against acetylcholinesterase, making it a concern in cases of pesticide exposure. In agricultural settings, detection of aldicarb-sulfoxide in soil and water indicates recent aldicarb use or contamination. It is used as a marker in residue analysis to assess food and environmental safety, especially in root crops and groundwater. Due to its solubility and persistence, it poses a risk of leaching into drinking water supplies, prompting regulatory monitoring. In toxicology, aldicarb-sulfoxide is measured in biological samples to diagnose and assess pesticide poisoning. It is also used in laboratory studies to evaluate the metabolic pathways and toxicity mechanisms of carbamate pesticides. Its formation in the liver during aldicarb metabolism underscores its role in the overall toxic effect, contributing to neurotoxic symptoms in exposed organisms.