Malonic acid

Malonic acid is an organic compound with the molecular formula C3H4O4.

Formula
C3H4O4
Functional group
Carboxylic acids; Dicarboxylic acids
Molar mass
104.06 g/mol
Also known as
propanedioic acid, Dicarboxymethane, Carboxyacetic acid, Methanedicarboxylic acid, malonate, Kyselina malonova

Overview

Malonic acid is an organic compound with the molecular formula C3H4O4.

Identifiers

Formula
C3H4O4
Functional group
Carboxylic acids; Dicarboxylic acids
Molar mass
104.06 g/mol
Also known as
propanedioic acid, Dicarboxymethane, Carboxyacetic acid, Methanedicarboxylic acid, malonate, Kyselina malonova
Chemical identifiers
SMILES
C(C(=O)O)C(=O)O
InChI
InChI=1S/C3H4O4/c4-2(5)1-3(6)7/h1H2,(H,4,5)(H,6,7)
PubChem CID
867

Properties

Melting Point
135-137 °C
Boiling / decomposition
Decomposes above 140 °C
Density
Density: 1.619 g/cu cm at 10 °C
Water solubility
In water, 6.23X10+5 mg/L at 25 °C

Related compounds

  • Carboxylic acids

    Malonic acid is an organic compound with the molecular formula C3H4O4.

  • Dicarboxylic acids

    Malonic acid is an organic compound with the molecular formula C3H4O4.

References

  1. PubChem Compound Summary: Malonic acid (CID 867)National Center for Biotechnology Information · PubChem

    Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.

  2. Hazardous Substances Data Bank (HSDB): Malonic acid — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/867#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Sigma-Aldrich; Product Search Malonic acid (141-82-2). Available from, as of Oct 11, 2018: https://www.sigmaaldrich.com/united-states.html

  3. Hazardous Substances Data Bank (HSDB): Malonic acid — boiling pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/867#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: ECHA; Search for Chemicals. Malonic Acid (141-82-2) Registered Substances Dossier. European Chemical Agency. Available from, as of July 16, 2018: https://echa.europa.eu/

  4. Hazardous Substances Data Bank (HSDB): Malonic acid — densityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/867#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 95th Edition. CRC Press LLC, Boca Raton: FL 2014-2015, p. 3-340

  5. Hazardous Substances Data Bank (HSDB): Malonic acid — solubilityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/867#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Yalkowsky, S.H., He, Yan, Jain, P. Handbook of Aqueous Solubility Data Second Edition. CRC Press, Boca Raton, FL 2010, p. 51