Fumaric acid
  • CAS Number 110-17-8
  • Catalog Number io-2427
  • Classification Acids
  • Molecular Weight 116.0700
  • SMILES C(=CC(=O)O)C(=O)O
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Fumaric acid is a butenedioic acid in which the C=C double bond has E geometry. It is an intermediate metabolite in the citric acid cycle. It has a role as a food acidity regulator, a fundamental metabolite and a geroprotector. It is a conjugate acid of a fumarate(1-).

1 fumaric acid
2 trans-Butenedioic acid
3 Allomaleic acid
4 fumarate
5 Boletic acid
Molecular Formula C4H4O4
Canonical SMILES C(=CC(=O)O)C(=O)O
Isomeric SMILES C(=C/C(=O)O)\C(=O)O
Molecular Weight 116.0700
InChIKey VZCYOOQTPOCHFL-OWOJBTEDSA-N
InChI InChI=1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1+
XLogP -0.3000
ExactMass 116.0110
MonoisotopicMass 116.0110
TPSA 74.6000
Complexity 119.0000
Charge 0.0000
HBondDonorCount 2
HBondAcceptorCount 4
RotatableBondCount 2
HeavyAtomCount 8
IsotopeAtomCount 0
AtomStereoCount 0
DefinedAtomStereoCount 0
UndefinedAtomStereoCount 0
BondStereoCount 1
DefinedBondStereoCount 1
UndefinedBondStereoCount 0
CovalentUnitCount 1
PatentCount 59638
PatentFamilyCount 26474
LiteratureCount 6304