BKC 50 & 80 is basically cationic surfactant, and synthesized  from dimethyl lauryl amine and benzyl chloride. It is about 50%  active in water. Clear, pale yellow to straw liquid with a mild odor.
It is freely soluble in water, lower alcohols, ketones and glycols. Congealing may occur during prolonged storage at low temperatures but is reversible on warming with mixing.