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CAS No 528-50-7 , D-(+)-Cellobiose

  • Name: D-(+)-Cellobiose
  • Synonyms: D-(+)-Cellobiose;4-beta-D-Glucopyransoyl-D-glucopyranose;
  • CAS Registry Number:
  • Melting Point: 239 ºC
  • Flash Point: 357.8°C
  • Boiling Point: 667.9°Cat760mmHg
  • Density: 1.76g/cm3
  • Refractive index: 34 ° (C=8, H2O)
  • Alpha: 34 º (C=1, H2O,15 HRS.)
  • Safety Statements: S24/25
  • HS Code: 29400090
  • Flash Point: 357.8°C
  • EINECS: 208-436-5
  • Molecular Weight: 342.30
  • InChI: InChI=1S/C12H22O11/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17/h3-20H,1-2H2/t3-,4-,5-,6+,7-,8-,9-,10-,11-,12+/m0/s1
  • Risk Statements: S24/25
  • Molecular Formula: C12H22O11
  • Molecular Structure:CAS No:528-50-7 D-(+)-Cellobiose

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528-50-7 CELLOBIOSE

  • United States Ferro Pfanstiehl Laboratories, Inc. [Manufacturer]
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528-50-7 D-Glucose, 4-O-b-D-glucopyranosyl-

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528-50-7 D-(+)-Cellobiose; 98%

  • D-(+)-Cellobiose; 98%
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528-50-7 4-O-beta-Glucopyranosyl-D-glucose

  • 4-O-beta-Glucopyranosyl-D-glucose
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528-50-7 D-(+)-Cellobiose

  • D-(+)-Cellobiose, 98-101%
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References of D-(+)-Cellobiose
Title: Cellobiose
CAS Registry Number: 528-50-7
CAS Name: 4-O-b-D-Glucopyranosyl-D-glucose
Synonyms: b-cellobiose; cellose; 4-(b-D-glucosido)-D-glucose
Molecular Formula: C12H22O11
Molecular Weight: 342.30
Percent Composition: C 42.11%, H 6.48%, O 51.41%
Literature References: Unit of cellulose and lichenin. Does not occur free in nature, or as glucoside. Prepn from cotton: Braun, Org. Synth. coll. vol. II, 122, 124 (1943). Prepn from cell-free enzymatic hydrolyzate of cellulose: Whistler, Smart, J. Am. Chem. Soc. 75, 1916 (1953). Structure: Haworth, Hirst, J. Chem. Soc. 119, 193 (1923); Charlton et al., ibid. 1926, 89; Zemplén, Ber. 59, 1254 (1926); Haworth et al., J. Chem. Soc. 1927, 2809; Peterson, Spencer, J. Am. Chem. Soc. 49, 2822 (1927); Helferich et al., Ber. 63, 992 (1930); Hess, Dziengel, ibid. 68, 1594 (1935); Hassid, Ballou in The Carbohydrates, W. Pigman, Ed. (Academic Press, New York, 1957) p 490. Synthesis: Haskins et al., J. Am. Chem. Soc. 64, 1289 (1942). Review: Pazur in The Carbohydrates vol. 2A, W. Pigman et al., Eds. (Academic Press, New York, 2nd ed., 1970) pp 109-110; R. G. Edwards, Dev. Food Carbohydr. 2, 229-273 (1980).
Properties: Minute crystals from dil alcohol which retain 0.25 to 0.50 mol water after drying in vacuo. Indifferent taste. Dec 225°. Shows mutarotation. [a]D20 +14.2° ? +34.6° (15 hrs, c = 8). One gram dissolves in 8 ml water, in 1.5 ml boiling water. Almost insol in abs alc and ether. Reduces Fehling's soln. Hydrolysis with acid or emulsin yields 2 mols b-D-glucose. Not fermented by brewers' yeast, maltase, or invertase.
Optical Rotation: [a]D20 +14.2° ? +34.6° (15 hrs, c = 8)
 
Derivative Type: Octaacetyl-aldehydro-cellobiose
Molecular Formula: C28H38O19
Molecular Weight: 678.59
Percent Composition: C 49.56%, H 5.64%, O 44.80%
Properties: mp 105-110°. [a]D20 +17.7° (c = 3 in chloroform).
Melting point: mp 105-110°
Optical Rotation: [a]D20 +17.7° (c = 3 in chloroform)
 
Derivative Type: Octaacetyl-a-cellobiose
Molecular Formula: C28H38O19
Molecular Weight: 678.59
Percent Composition: C 49.56%, H 5.64%, O 44.80%
Properties: mp 229°. [a]D20 +41° (c = 6 in chloroform).
Melting point: mp 229°
Optical Rotation: [a]D20 +41° (c = 6 in chloroform)
 
Derivative Type: Octaacetyl-b-cellobiose
Properties: mp 202°. [a]D20 -14.7° (c = 5 in chloroform).
Melting point: mp 202°
Optical Rotation: [a]D20 -14.7° (c = 5 in chloroform)