Amyloid β Peptide(40-1) is primarily used in research to study Alzheimer's disease and related neurodegenerative disorders. It serves as a reverse sequence control in experiments involving the more common Amyloid β Peptide(1-40), helping researchers understand the specific effects of peptide sequence and aggregation. This peptide is crucial in investigating the mechanisms of amyloid plaque formation, which is a hallmark of Alzheimer's disease. It is also utilized in drug development studies to test potential inhibitors of amyloid aggregation and toxicity. Additionally, it aids in the development of diagnostic tools and biomarkers for early detection of Alzheimer's disease.