Title: D-Allose
CAS Registry Number: 2595-97-3
CAS Name: b-D-Allopyranose
Molecular Formula: C6H12O6
Molecular Weight: 180.16
Percent Composition: C 40.00%, H 6.71%, O 53.28%
Literature References: An aldohexose sugar. Obtained from leaves of Protea rubropilosa: Beylis, Perold, Chem. Commun. 1971, 597. Prepd by reduction of D-allonic lactone with sodium amalgam: Levene, Jacobs, Ber. 43, 3147 (1910). Synthesis: Hughes, Speakman, J. Chem. Soc. 1965, 2236; Baker et al., Carbohydr. Res. 24, 192 (1972).
Properties: Crystals from dilute methanol, mp 128-128.5°. Shows mutarotation: [a]D20 +0.58° (4 min) ® +3.26° (10 min) ® +14.41° (final value, 20 hr; c = 5). Soluble in water. Practically insol in alcohol.
Melting point: mp 128-128.5°
Optical Rotation: [a]D20 +0.58° (4 min) ® +3.26° (10 min) ® +14.41° (final value, 20 hr; c = 5)
Derivative Type: Phenylosazone
Molecular Formula: C18H22N4O4
Molecular Weight: 358.39
Percent Composition: C 60.32%, H 6.19%, N 15.63%, O 17.86%
Properties: mp 178°.
Melting point: mp 178°
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