|
Semialdehyde
In organic chemistry, a semialdehyde is a compound containing an aldehyde and a carboxylic acid functional groups. Semialdehydes are common in biochemistry. The simplest semialdehydes have the formula . As illustrated by the behavior of the smallest member, glyoxylic acid, semialdehydes often exist as hydrates (geminal diols) . Some of semialdehydes and their parent dicarboxylic acids are listed below. {, class="wikitable" , + Selected Semialdehydes and their parent diacid , - ! Semialdehyde!! Dicarboxylic acid , - , malonic semialdehyde , malonic acid , - , tartronic semialdehyde , tartronic acid , - , succinic semialdehyde , succinic acid , - , methylmalonic semialdehyde , methylmalonic acid , - , aspartic-4-semialdehyde , aspartic acid , - , glutamate-1-semialdehyde, glutamic-1-semialdehyde , glutamic acid , - , glutamate-5-semialdehyde, glutamic-5-semialdehyde , glutamic acid , - , 4-Hydroxymuconic-semialdehyde, 4-hydroxymuconic-semialdehyde , 4-Hydroxymuconic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malonic Semialdehyde
3-Oxopropanoic acid (also malonic semialdehyde or formylacetic acid) is an organic chemical compound that carries both a carboxylic acid function and an aldehyde function. Natural occurence In nature, 3-oxopropanoic acid occurs as a metabolic intermediate. It is formed, for example, by the reversible oxidation of 3-hydroxypropionyl-CoA with nicotinamide adenine dinucleotide (NAD). A bacterial strain of the species ''Pseudomonas fluorescens'' is known to survive on propiolic acid as its sole carbon and energy source. 3-Oxopropanoic acid is an important metabolic intermediate: it is formed by hydration of acetylenic acid and is converted into acetyl-CoA by decarboxylation. It also occurs as a metabolic intermediate in a strain of ''Escherichia coli'' that can grow on uracil as its sole nitrogen source. 3-Oxopropanoic acid also occurs in atmospheric aerosols along with various other organic acids (especially oxalic acid). It has been detected as an aerosol component at various statio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |