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Fumaric Acid
(E)-Butenedioic acid
CAS: 110-17-8
This white crystalline compound is the trans isomer of maleic acid.
Other Known Names: trans-1,2-ethylenedicarboxylic acid, 2-butenedioic acid,trans-butenedioic acid, allomaleic acid, boletic acid, donitic acid, lichenic acid
Molecular Formula: C4H4O4
Applications: food additive, pharmaceuticals, also used in the manufacture of polyester resins and polyhydric alcohols and as a mordant for dyes
Properties
Molar Mass: 116.07 g/mol
Appearance: White Solid
Density: 1.635 g/cm3
Melting Point: 287°C
Solubility in Water: 0.63 g/100 mL
Acidity (pKa): pka1 = 3.03, pka2 = 4.44