names: gamma cyclodextrins, ring eight sugar, ring malt eight sugar
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Number of glucose units
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8
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Molecular
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1297
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Solubility in water g/100ml at ambient temp.
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23.2
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[α]D25
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177.4±0.5
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Cavity diameter Å
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7.5-8.3
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Height of torus
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7.9±0.1
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Dia. of periphery
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17.5±0.4
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Vol. of cavity(approx.)Å
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472
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Cavity vol (approx.):
per mol CD. mls
per lg CD mls
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265
0.20
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Crystal forms（from water）
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Quadratic prisms
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Crystallographic params.
C1-C4-C4 angle
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112.6
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φ/φº
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165/-169
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O4---O4 distance Å
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4.48
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O2---O3 distance Å
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2.31
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Crystal water wt%
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8.13-17.7
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Diffusion const.40ºC
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3000
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Hydrolysis by A. oryzae α-amylase
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Rapid
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Vmaxvalue min-1
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2300
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Relative permittivity
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70.0
39.5
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Pk (by potentionmetry) 25ºC
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12.081
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Partial molar volumes in solution ml/mol
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801.2
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Adiabatic compressidbility
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In aqueous soln.ml.mol-1.bar-1.104
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-5.0
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Product name
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specifications
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Packing
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Gamma - cyclodextrins
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Pharmaceutical grade, food grade and industrial grade
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5g/bag; 100g/bag
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>>Alphabetical order
