D-erythrose
Sign in to saveErythrose is a tetrose saccharide with the chemical formula C4H8O4. It has one aldehyde group, and is thus part of the aldose family. The natural isomer is D-erythrose; it is a diastereomer of D-threose. thumb|left|Fischer projections depicting the two enantiomers of erythrose
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Erythrose is a tetrose saccharide with the chemical formula C4H8O4. It has one aldehyde group, and is thus part of the aldose family. The natural isomer is D-erythrose; it is a diastereomer of D-threose. thumb|left|Fischer projections depicting the two enantiomers of erythrose
Erythrose was first isolated in 1849 from rhubarb by the French pharmacist Louis-Félix-Joseph Garot (1798–1869), and was named as such because of its red hue in the presence of alkali metals (ἐρυθρός, "red").