Glucose-6-phosphate
Title: Glucose-6-phosphate
CAS Registry Number: 56-73-5
CAS Name: D-Glucose 6-(dihydrogen phosphate)
Additional Names: glucose-6-phosphoric acid; Robison ester
Molecular Formula: C6H13O9P
Molecular Weight: 260.14
Percent Composition: C 27.70%, H 5.04%, O 55.35%, P 11.91%
Literature References: A normal constituent of resting muscle, probably always existing in equilibrium with fructose-6-phosphate. For the enzymatic conversion from the 1-phosphate see a-Glucose-1-phosphate. Isoln from a crude mixture of hexose phosphates, obtained by yeast fermentation: Robison, King, Biochem. J. 25, 323 (1931). Prepn by the action of phosphoglucomutase on a-glucose-1-phosphate: Colowick, Sutherland, J. Biol. Chem. 144, 423 (1942); from acetone glucose: Levene, Raymond, ibid. 92, 757 (1931); by phosphorylation of 1,2,3,4-tetraacetylglucose followed by deacetylation: Fischer, Lardy, ibid. 164, 513 (1946); Biochem. Prep. 2, 39 (1952). Prepn from starch: de Chatelperron et al., FR 1379068 (1964), C.A. 62, 9394b (1965).
 
Derivative Type: Barium salt
Molecular Formula: C6H11O5PO4Ba
Molecular Weight: 395.45
Percent Composition: C 18.22%, H 2.80%, O 36.41%, P 7.83%, Ba 34.73%
Properties: Nonhygroscopic, stable powder. [a]D24 +17.9°. Easily sol in water.
Optical Rotation: [a]D24 +17.9°
 
Derivative Type: Dipotassium salt
Molecular Formula: C6H11O5PO4K2
Molecular Weight: 336.32
Percent Composition: C 21.43%, H 3.30%, O 42.81%, P 9.21%, K 23.25%
Properties: Precipitate from methanol. [a]D24 +21.2° (c = 1.3). Freely sol in water.
Optical Rotation: [a]D24 +21.2° (c = 1.3)

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