KnowraGlyoxalLinked fromLinked fromThe 3 pages that link to Glyoxal, each with the reason it gives.All 3Related 2Compared with 1ImidazoleRelated: Glyoxal supplies two adjacent carbon atoms in the classical imidazole synthesis.GlycolaldehydeCompared with: It has two aldehyde groups where glycolaldehyde has one aldehyde and one alcohol group.Glyoxylic acidRelated: It is a related two-carbon compound and a precursor in some glyoxylic acid preparations.