L-Erythrulose
Title: L-Erythrulose
CAS Registry Number: 533-50-6
CAS Name: (3S)-1,3,4-Trihydroxy-2-butanone
Additional Names: L-glycero-tetrulose
Molecular Formula: C4H8O4
Molecular Weight: 120.10
Percent Composition: C 40.00%, H 6.71%, O 53.29%
Literature References: Prepn by bacterial oxidation of meso-erythritol: Müller et al., Helv. Chim. Acta 20, 1468 (1937); Whistler, Underköfler, J. Am. Chem. Soc. 60, 2507 (1937). Synthesis from D-fructose: Gorin et al., J. Chem. Soc. 1955, 2699.
Properties: Syrup. [a]D18 +11.4° (c = 2.4 in water). Very sensitive to alkali. Soluble in water, abs alc.
Optical Rotation: [a]D18 +11.4° (c = 2.4 in water)
 
Derivative Type: Phenylosazone
Molecular Formula: C16H18N4O2
Molecular Weight: 298.34
Percent Composition: C 64.41%, H 6.08%, N 18.78%, O 10.73%
Properties: Crystals from aq ethanol, mp 162°. [a]D +32° (10 min) ® 0° (24 hr, constant) (c = 0.75 in pyridine + ethanol, 3:2 v/v).
Melting point: mp 162°
Optical Rotation: [a]D +32° (10 min) ® 0° (24 hr, constant) (c = 0.75 in pyridine + ethanol, 3:2 v/v)

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