alpha-Ribazole
Structural Formula Vector Image
Title: a-Ribazole
CAS Registry Number: 132-13-8
CAS Name: 5,6-Dimethyl-1-a-D-ribofuranosyl-1H-benzimidazole
Molecular Formula: C14H18N2O4
Molecular Weight: 278.30
Percent Composition: C 60.42%, H 6.52%, N 10.07%, O 23.00%
Literature References: Nucleoside moiety of vitamin B12, q.v. Isoln by acid hydrolysis of vitamin B12: N. G. Brink et al., J. Am. Chem. Soc. 72, 1866 (1950); N. G. Brink, K. Folkers, ibid. 74, 2856 (1952). Syntheses of a- and b-anomers: F. W. Holly et al., ibid. 4521; R. S. Wright et al., ibid. 80, 2004 (1958); J. D. Stevens et al., J. Org. Chem. 33, 1806 (1968). Biosynthetic study: J. Hörig, P. Renz, FEBS Lett. 80, 337 (1977). Spectroscopic characterization: K. L. Brown et al., Inorg. Chem. 23, 1463 (1984).
Properties: Crystals from water, mp 198-199°. [a]D23 +14° (c = 0.9 in pyridine).
Melting point: mp 198-199°
Optical Rotation: [a]D23 +14° (c = 0.9 in pyridine)

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