| abstract |
(57) [Summary] [Problem] To exhibit high antibacterial activity and a broad antibacterial spectrum, Further, the present invention provides a highly safe antibacterial agent for the human body. A novel quaternary ammonium salt compound represented by the following formula (1). Embedded image [In the formula (1), R 1 has 3 to 20 carbon atoms, R 2 has 1 to 20 carbon atoms, R 3 has 1 to 20 carbon atoms, and A is CONR 13 , NR 13 CO, COO , OOC, O, NR 13 COO or NR 13 CONR 13 , R 13 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, B represents phenylene, the following formula (2) or the following formula (3), and L represents 0 or 1. And k is an integer of 1 to 4, X is an inorganic or organic anion, n is the valence of the anion X, and m is a number such that the product of n and m is 2. ] Embedded image |