CAS 110-17-8: Fumaric Acid (C4H4O4)

Identity

CAS Number110-17-8
Molecular FormulaC4H4O4
IUPAC Name(E)-but-2-enedioic acid
Molecular Weight116.07 g/mol
SMILESC(=C/C(=O)O)\C(=O)O
Synonymsfumaric acid, trans-butenedioic acid, allomaleic acid, boletic acid

2D Structure

Physical Properties

Density1.635 g/mL at 25°C
Boiling Point290.0°C
Melting Point287.0°C
Flash Point110.0°C
Vapor Pressure0.001 kPa at 20°C
Refractive IndexnD = 1.526
Dielectric Constantε = 6.0

Safety & GHS Classification

Irritant

Storage: Store in a cool, dry area. Keep container tightly sealed. Stable compound — does not readily decompose. Store away from strong bases and oxidizers.

Material Compatibility Matrix

Plastics

MaterialRating
PTFEExcellent
PVCGood
PEExcellent
PPExcellent
PEEKExcellent
PVDFExcellent

Rubbers

MaterialRating
VitonExcellent
NBRGood
EPDMExcellent
SiliconeGood
FKMExcellent

Metals

MaterialRating
Stainless 316Excellent
AluminumGood
CopperFair
BrassFair

Applications

External References: PubChem

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