Dodecyltrimethylammonium is a cationic surfactant.¹It has a critical micelle concentration (CMC) of 15.7 and 8.1 mM in water and PBS, pH 7.4, respectively, and binds to DNA. Dodecyltrimethylammonium is active againstL. monocytogenes(MIC = 120 mg/L).²

1.Silva, E.F., Andrade, U.M.S., de Oliveira, K.M., et al.Dodecyltrimethylammonium bromide surfactant effects on DNA: Unraveling the competition between electrostatic and hydrophobic interactionsPhys. Rev. E102(3-1)032401(2020) 2.MÜller, A., Rychli, K., Zaiser, A., et al.The Listeria monocytogenes transposon Tn6188 provides increased tolerance to various quaternary ammonium compounds and ethidium bromideFEMS Microbiol. Lett.361(2)166-173(2014)