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Title: Cellobiose  
Author: World Heritage Encyclopedia
Language: English
Subject: Maltose, Disaccharide, List of MeSH codes (D09), C12H22O11, Disaccharides
Collection: Disaccharides
Publisher: World Heritage Encyclopedia


ChemSpider  N
DrugBank  Y
Jmol-3D images Image
Molar mass 342.30 g·mol−1
Appearance white, hard powder
Odor odorless
Density 1.768 g/mL
Melting point 203.5 °C (398.3 °F; 476.7 K) (decomposes)
12 g/100mL
Solubility very slightly soluble in alcohol
insoluble in ether, chloroform
log P -5.03
Acidity (pKa) 12.39
Safety data sheet Sigma-Aldrich
NFPA 704
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
 N  (: Y/N?)

Cellobiose is a disaccharide with the formula [HOCH2CHO(CHOH)3]2O. Cellobiose, a reducing sugar, consists of two β-glucose molecules linked by a β(1→4) bond. It can be hydrolyzed to glucose enzymatically or with acid.[1] Cellobiose has eight free alcohol (OH) groups, one acetal linkage and one hemiacetal linkage, which give rise to strong inter- and intra-molecular hydrogen bonds. It can be obtained by enzymatic or acidic hydrolysis of cellulose and cellulose rich materials such as cotton, jute, or paper.

Treatment of cellulose with

  1. ^
  2. ^ Braun, G. (1943). "α-Cellobiose Octaacetate" (PDF). Organic Syntheses. Collected Volume 2: 124.  and Braun, G. (1937). "α-Cellobiose Octaacetate". Organic Syntheses 17: 36. 



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