(sē'til-trī-me'thil-ă-mō'nē-ŭm brō'mīd), A mixture of dodecyl-, tetradecyl-, and hexadecyltrimethylammonium bromides; an odorless surface-active agent, readily soluble in water; a disinfectant with a strong bacteriostatic action, used for the sterilization of instruments and utensils.AcronymsSeeCTAB