Zinc Methionine Usage: Nutritional additive, widely used in feed and food industry Certification: ISO,HACCP,KOSHER,FAMI-QS Zinc Methionine[Molecular Formula]: (C5H11NO2S)2Zn [Product Code]: SZN02[Molecular Weight]: 363.79 [Specifications]:Arsenic(As),%[Usage]: Nutritional additive, widely used in feed and food industry.