Amlodipyric acid solution is primarily used in analytical and research settings for the detection and quantification of amlodipine, a calcium channel blocker commonly prescribed for hypertension and angina. The solution serves as a reference standard in pharmaceutical quality control, ensuring accurate measurement of amlodipine in drug formulations. It is also employed in high-performance liquid chromatography (HPLC) and mass spectrometry (MS) to validate analytical methods and assess the purity, stability, and degradation products of amlodipine-containing medications. Due to its well-characterized properties, it supports reproducibility in laboratory testing and regulatory compliance in drug development and manufacturing.