Xanthan Gum Xanthan gum is a polysaccharide with a wide variety of uses, including as a common food additive. It is a powerful thickening agent, and also has uses as a stabilizer to prevent ingredients from separating .It can be produced from a range of simple sugars using a fermentation process, and derives its name from the strain of bacteria used in this: Xanthomonas campestris. 0086,173.0371.8748 Product name:Xanthan gum CAS No:11138-66-2 Grade: Food/Industrial/Medicine grade EINECS No.: 234-394-2 Form: Powder MF: (C35H49O29)n