3D model (Jmol)
|Molar mass||74.08 g·mol−1|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Lactaldehyde is an intermediate in the methylglyoxal metabolic pathway. Methylglyoxal is converted to D-lactaldehyde by glycerol dehydrogenase (gldA). Lactaldehyde is then oxidized to lactic acid by aldehyde dehydrogenase.
Lactaldehyde exists in several forms: in open-chain form and as cyclic hemiacetal; in solution and in crystal forms; as monomer and as dimer. In crystal form, three conformers occur as hemiacetal dimers with a 1,4-dioxane ring skeleton:
In equilibrium solution, negligibly small amounts of the monomer and at least one five-membered ring dimer exist.
- Huang PC, Miller ON (1958). "The metabolism of lactaldehyde, page 205" (PDF). J. Biol. Chem. 231 (1): 201–5. PMID 13538961.
- Takahashi, H (1983). "Conformational studies of DL-lactaldehyde by 1H-NMR, Raman and i.r. spectroscopy". Spectrochimica Acta Part A: Molecular Spectroscopy. 39 (6): 569–572. doi:10.1016/0584-8539(83)80108-1.