Microperoxidase (MP-11) sodium salt is widely used in biochemical research and industrial applications due to its peroxidase-like activity. It serves as a model compound for studying heme proteins and enzyme mechanisms, particularly in mimicking the behavior of cytochrome c peroxidase. In biosensors, it is employed to detect hydrogen peroxide and other analytes, leveraging its catalytic properties for signal amplification. Additionally, it is utilized in organic synthesis for selective oxidation reactions, offering a cost-effective and efficient alternative to traditional catalysts. Its stability and ease of use make it a valuable tool in both academic and industrial settings.