... powder, Sour fruit Food grade fumaric acid, used as food preservative, preservatives, antioxidants etc..Fumaric acid Keyword: fumaric acid, trans-Butene dioic acidCAS ... : 0.1% max moisture: 0.5% max Usage: Food grade fumaric acid as chemical intermediate --an acid and acidifier, widely used ... per bag or drum (20MT/FCL) CAS# 110-17-8 Fumaric Acid