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CAS number 638-37-9
PubChem 12524
ChemSpider 12007
Jmol-3D images Image 1
Molecular formula C4H6O2
Molar mass 86.09
Appearance colourless liquid
Density 1.064 g/cm3
Boiling point 58 °C at 9 mm Hg
Solubility in water with hydration
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Succinaldehyde or succindialdehyde is an organic compound with the formula (CH2CHO)2. Typical of other dialdehyde, succinaldehyde is highly reactive. Usually, it is handled as the hydrates or methanol-derived acetal. It is a precursor to tropinone.[1] It is used as a crosslinking agent but is less widely used than the related dialdehyde glutaraldehyde.


Succinaldehyde is generated by the oxidation of THF with chlorine followed by hydrolysis and by the hydroformylation of acrolein derivatives.

In aqueous solution, the molecule hydrates and cyclizes.[2] In methanol it converts to the cyclic acetal, 2,5-dimethoxyltetrahydrofuran.[3]


  1. ^ U.S. Patent 2,710,883
  2. ^ Hardy, P. M.; Nicholls, A. C.; Rydon, H. N. "The hydration and polymerisation of succinaldehyde, glutaraldehyde, and adipaldehyde" J. Chem. Soc., Perkin Trans. 2, 1972, 2270-2278. doi:10.1039/P29720002270
  3. ^ Christian Kohlpaintner, Markus Schulte, Jürgen Falbe, Peter Lappe, Jürgen Weber "Aldehydes, Aliphatic” in Ullmann's Encyclopedia of Industrial Chemistry 2008, Wiley-VCH, Weinheim. doi: 10.1002/14356007.a01_321.pub2