Used for highly specific purification of FLAG-tagged proteins from cell lysates or other biological samples. Ideal for immunoprecipitation, pull-down assays, and protein-protein interaction studies. The resin enables gentle elution under mild conditions using FLAG peptides, preserving protein structure and function. Commonly applied in recombinant protein expression systems where the FLAG tag is fused to the target protein. Suitable for both small-scale and large-scale purification processes in research settings. Reusable and stable for multiple runs when properly stored.