Ketoconazole standard solution is primarily used in analytical laboratories for the calibration and validation of analytical methods. It serves as a reference standard in quality control processes for pharmaceutical testing, ensuring accurate quantification of ketoconazole in various formulations such as creams, shampoos, and tablets. It is commonly employed in high-performance liquid chromatography (HPLC) and gas chromatography (GC) to establish concentration curves and confirm the identity and purity of the active ingredient. Additionally, it supports research in drug development and stability studies by providing a consistent and reliable benchmark for comparison. Its use in standardization helps maintain compliance with regulatory requirements in the pharmaceutical and cosmetic industries.