L-Cysteine Hydrochloride Anhydrous, CAS# 52-89-1, is a organic salt of amino acid manufactured through chemical synthesis, available as White crystalline powder. L-Cysteine Hydrochloride Anhydrous is widely used as nutrition supplements. It is widely accepted as safe food additive in many countries with E number E920. As a professional supplier and manufacturer of food additives, Foodchem International Corporation has been supplying quality L-Cysteine Hydrochloride Anhydrous to customers all over the world for over 10 years.