N-Acetyltyramine is a quorum-sensing inhibitor (QSI) compound produced by V. alginolyticus M3-10. N-Acetyltyramine is capable of inhibiting the QS of C. violaceum ATCC 12472. N-acetyltyramine reverses resistance in Doxorubicin-resistant leukemia P388 cells[2].In Vitro: N-Acetyltyramine enhances cytotoxicity of doxorubicin in resistant P388 murine leukemia cells with an IC50 value of 0.13 μg/ml compared with an IC50 value of 0.48 μg/ml for doxorubicin alone[2].