Staphylococcus aureus Chromogenic Medium is a specialized culture medium designed for the rapid isolation and specific identification of Staphylococcus aureus. It employs an enzymatic chromogenic mechanism (Staphylococcus aureus secretes specific enzymes that hydrolyze substrates, releasing chromogenic groups to form pink to purplish-red colonies) and a selective inhibition mechanism (suppressing Staphylococcus epidermidis, streptococci, and other contaminants) to achieve highly specific identification.