Octadecyl trimethyl ammonium bromide (English name: OctadecylTrimethylAmmoniumBromide, hereinafter referred to as: OTAB) is a kind of quaternary ammonium salt antibacterial agent, white powder. OTAB is a cationic surfactant, which has strong bactericidal and mildew inhibiting properties. It is commonly used as waterproofing agent, retarding agent, oil demulsifier and oil field fungicide
