Used in research and diagnostic settings to detect and quantify CB1 (CNR1) cannabinoid receptors in biological samples. Helps in studying the endocannabinoid system’s role in neurological functions, pain regulation, and metabolic processes. Employed in immunohistochemistry, Western blotting, and flow cytometry to support drug development targeting cannabinoid pathways. Also utilized in preclinical studies to validate receptor expression in tissues affected by neurodegenerative diseases, addiction, and obesity.