Ammonium chloride is a simple chemical compound made up of the elements nitrogen, hydrogen, and chlorine. It is often used in things like medicine, cleaning products, and food. Full definition
Diethyl ester dimethyl ammonium chloride: Belongs to a group known as «quats.» (grassfedgirl.com)
However, it looks like the active ingredient is Alkyl (50 % C14, 40 % C12, 10 % C16) dimethyl benzyl ammonium chlorides (also called Benzalkonium chloride). (fleascience.com)
The nitrogen is released as ammonium chloride and the phosphorus as potassium dihydrogen phosphate. (newscientist.com)