Used in research and development for Alzheimer's disease, this antibody targets tau protein, which forms neurofibrillary tangles in the brain. It helps in studying disease mechanisms and evaluating potential therapies. It serves as a reference in immunoassays to measure tau levels and assess binding characteristics of other anti-tau antibodies. Also used in preclinical studies to compare efficacy and specificity of therapeutic antibody candidates. Supports imaging and biomarker research to track tau pathology progression.