Used in biomedical research to quantify C-type natriuretic peptide (CNP) levels in rat biological samples such as plasma, serum, or tissue homogenates. This ELISA kit enables researchers to study the role of CNP in cardiovascular regulation, bone growth, and endothelial function in rat models. It is commonly applied in preclinical studies investigating hypertension, heart failure, and skeletal development. The assay provides a sensitive and specific measurement of CNP concentration, supporting data collection in experimental physiology and pharmacology.