Erythrose

• (2R, 3R) -2,3,4 - Trihydroxybutanal (D - erythrose )
• (2S, 3S) -2,3,4 - Trihydroxybutanal (L- erythrose )

• 583-50-6 (D - erythrose )
• 533-49-3 (L- erythrose )
• 29825-68-1 (DL- erythrose )

Colorless, syrupy liquid

Liquid

Well in water

Template: Infobox chemical / molecular formula search available

Erythrose is a monosaccharide selected from the group of tetroses. Because of the terminal aldehyde group of the erythrose is one of the aldoses. There are two stereoisomers, D- erythrose, L- erythrose, and the. The IUPAC name of the D-form is (2R, 3R) -2,3,4 - trihydroxybutanal. L- erythrose [ Synonym: ( 2S, 3S) -2,3,4 - trihydroxybutanal ] has little meaning. The Threose is a diastereomer of erythrose.

The stereochemical configuration of erythrose is eponymous for the erythro- descriptor, which is used as a semi- systematic name suffix to identify similarly configured molecules.

Reactions

With hydrochloric acid erythrose slow to respond to lactic acid. In carbohydrate metabolism erythrose 4-phosphate is an important intermediate product. Arises in the course of the pentose phosphate pathway by the action of the enzyme transaldolase from sedoheptulose -7 -phosphate and glyceraldehyde -3-phosphate, together with fructose-6 -phosphate. Plants and many microorganisms is erythrose 4-phosphate, together with phosphoenolpyruvate (PEP) in Shikimisäureweg for synthesis of the aromatic amino acids tryptophan, tyrosine and phenylalanine. Furthermore, Erythrose - 4-phosphate in plants, bacteria and fungi are used for the synthesis of pyridoxine, vitamin B6.