Cetrimonium bromide [N(CH₃)₃Br; cetyltrimethylammonium bromide; hexadecyltrimethylammonium bromide; CTAB] is a quaternary ammonium surfactant. It is one of the components of the topical antiseptic cetrimide.
Molar mass: 364.45 g/mol
Formula: C19H42BrN