Sodium Alginate, CAS# 9005-38-3, is a polysaccharide manufactured through chemical synthesis, available as white or yellowish granular or powder. Sodium Alginate is widely used as thickeners. It is widely accepted as safe food additive in many countries with E number E401. Foodchem International Corporation has been supplying quality Sodium Alginate to customers all over the world for over 10 years.