Title: D-Ribulose
CAS Registry Number: 488-84-6
CAS Name: D-erythro-2-Pentulose
Additional Names: D-adonose; D-erythro-2-ketopentose
Molecular Formula: C5H10O5
Molecular Weight: 150.13
Percent Composition: C 40.00%, H 6.71%, O 53.29%
Literature References: Prepn from D-arabinose: Glatthaar, Reichstein, Helv. Chim. Acta 18, 80 (1935); from 2-keto-D-gluconic acid: Hall et al., Biochem. J. 60, 271 (1955); from D-fructose: P. M. Collins et al., J. Chem. Soc. Perkin Trans. 1 1980, 277. Stereoselective synthesis: M. Yamaguchi, T. Mukaiyama, Chem. Lett. 1981, 1005; K. Suzuki et al., ibid. 1529.
Properties: Sweet syrup. [a]D24 -15° (c = 0.5 in water).
Optical Rotation: [a]D24 -15° (c = 0.5 in water)
Derivative Type: Diphosphate
Molecular Formula: C5H12O11P2
Molecular Weight: 310.09
Percent Composition: C 19.37%, H 3.90%, O 56.76%, P 19.98%
Literature References: Prepn from D-ribose-5-phosphate: Horecker et al., Biochem. Prep. 6, 83 (1958).
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