Fumaric acid Common name: Trans-Butenedioic Acid Formula:C4H4O4 Molecular Weight:116.07 CAS No.: 110-17-8 Description: White odorless powder or crystalline solid particles, with special sourness Purity (base on C4H4O4) 99.50 100.50% (dry basis) Heavy metal (base on Pb) ≤10 PPM Arsenic (base on As) ≤ 3 PPM Water content ≤0.5 % Melting range 286 302 °C Residue on ignition ≤0.1 % Chroma (in 5% ethanol) ≤15 # Malic acid ≤0.1 % Package:25kg net in plastic woven bag lined with PE bag. 18 MT/20'FCL (with pallet) or 22MT/20'FCL (without pallet).