Erythrose 赤藓糖
Erythrose is a tetrose carbohydrate with the chemical formula C4H8O4. It has one aldehyde group, and so is part of the aldose family. The natural isomer is D-erythrose.
Erythrose was first isolated in 1849 from rhubarb by the French pharmacist Louis Feux Joseph Garot (1798-1869), and was named as such because of its red hue in the presence of alkali metals (ἐρυθρός, "red").