Diphenyl disulfide (Phenyl disulfide) is an organic disulfide compound. Diphenyl disulfide inhibits the PI3K/AKT/mTOR pathway, and induces ferroptosis (ferroptosis), apoptosis (apoptosis) and autophagy (autophagy) in cancer cells. Diphenyl disulfide downregulates GPX4 expression, inhibits NRF2 phosphorylation, induces lipid peroxidation, promotes xCT ubiquitination, induces proteolytic cleavage of p21 Bax into p18 Bax, and suppresses cell proliferation and viability. Diphenyl disulfide can be used in research related to melanoma and breast cancer[1][2][3].