MACAT AO-18:1 is a 30% active, naturally plant derived (Soy-Macat AO-18:1 S) or animal derived (Distilled Tallow-Macat AO-18:1 DT) oleyl (C18:1) dimethylamine oxide in water. AO-18:1 dilutes to high viscosity aqueous solutions, and is an outstanding foam booster and grease cutter that is chlorine and acid stable.