Used in research as a model heme protein for studying oxygen binding and storage in muscle tissues. Commonly employed in spectroscopic studies due to its well-characterized structure and stable heme group. Applied in biochemical assays to investigate oxidative reactions and free radical interactions. Also utilized in teaching laboratories to demonstrate protein purification, electrophoresis, and spectrophotometric analysis. Its high purity and consistent properties make it suitable for use in calibration and standardization of analytical instruments.