Fumaric Acid

C₄H₄O₄

IUPAC: (E)-Butenedioic acid

CAS: 110-17-8

Overview

Fumaric acid is the trans isomer of butenedioic acid and an intermediate in the citric acid cycle. It is used as a food acidulant and in pharmaceutical formulations.

Composition

Element Symbol Atoms Atomic Mass
Hydrogen H 4 1.0080
Carbon C 4 12.0110
Oxygen O 4 15.9990

Elemental Composition

H
Hydrogen ×4
3.5%
C
Carbon ×4
41.4%
O
Oxygen ×4
55.1%

Uses

  • • Food acidulant
  • • Psoriasis treatment
  • • Polymer production

Fun Facts

  • ✦ Fumaric acid is 1.5 times more sour than citric acid by weight

Structure

SMILES

C(=CC(=O)O)C(=O)O

Properties

Type
organic
State
solid
Molar Mass
116.07 g/mol
Density
1.6350 g/cm³
Melting Point
287.0 °C
Solubility
7 g/L at 25°C

Molecular Descriptors

Exact Mass
116.0110
XLogP
-0.3
TPSA
74.6 Ų
H-Bond Donors
2
H-Bond Acceptors
4
Rotatable Bonds
2
Heavy Atoms
8
Complexity
119.0

Related Compounds

1,2-Dichloroethane

C₂H₄Cl₂

1,3-Butadiene

C₄H₆

1,4-Dioxane

C₄H₈O₂

1-Butanol

C₄H₁₀O

2-Propanol

C₃H₈O

Acetaldehyde

CH₃CHO

Acetamide

C₂H₅NO

Acetic Anhydride

C₄H₆O₃

Acetone

(CH₃)₂CO

Acetonitrile

C₂H₃N

Frequently Asked Questions

What is Fumaric Acid?
Fumaric Acid (C₄H₄O₄) is a organic compound with the IUPAC name (E)-Butenedioic acid.
What is the molecular weight of Fumaric Acid?
Fumaric Acid has a molar mass of 116.07 g/mol.
What state is Fumaric Acid at room temperature?
Fumaric Acid is a solid at room temperature.
Is Fumaric Acid organic or inorganic?
Fumaric Acid is classified as an organic compound.
What elements make up Fumaric Acid?
Fumaric Acid (C₄H₄O₄) is composed of Hydrogen (H), Carbon (C), Oxygen (O).