Atrial natriuretic peptide (ANP) is a cardiac hormone secreted by the atria that regulates blood pressure, sodium balance, and fluid homeostasis. Released in response to increased blood volume, ANP promotes natriuresis and vasodilation while counteracting the renin-angiotensin-aldosterone system (RAAS). Dysregulation of ANP is implicated in heart failure, hypertension, and chronic kidney disease, making it a critical biomarker for cardiovascular and renal research. ANP antibodies are widely used to detect and quantify protein levels, examine tissue localization, and analyze hormone-mediated signaling pathways. Catalina’s high-quality ANP antibodies are validated for reproducible, high-sensitivity detection in experimental and diagnostic applications. With robust performance across multiple assay platforms, ANP antibodies are essential tools for translational research, biomarker studies, and therapeutic development.