Evonik

C₁₆H₃₃NCH₃ Cl: q = 3.06, C# = 19

Hexadecyl trimethyl ammonium chloride, also called cetyl trimethyl ammonium chloride is often used as a cationic surfactant but can also be used as a phase-transfer catalyst under conditions which avoid emulsions (usually at high ionic strnegth)