Anionic Self Emulsifying Wax Is Useful, Economic And General Purpose Emulsifiers Suitable For Cosmetic And Pharmaceutical Applications. Anionic emulsifying wax is a waxy material obtained by blending Cetostearyl alcohol (CH3 (CH2)nOH) and Sodium lauryl sulfate. Cetostearyl alcohol is a mixture of fatty alcohols, mainly Cetyl (C16) and Stearyl (C18). Different pharmacopoeia differ in the way they specify the composition of the wax.