Merck
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22150

Millipore

D-(+)-Cellobiose

≥99.0%, suitable for microbiology, Reducing sugar disaccharide

Synonym(s):
Cellobiose, Cellose, Beta-Cellobiose, D-Cellobiose, β-D-Glc-(1→4)-D-Glc, 4-O-β-D-Glucopyranosyl-D-glucose
Empirical Formula (Hill Notation):
C12H22O11
CAS Number:
Molecular Weight:
342.30
Beilstein:
93795
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.85

Quality Level

assay

≥99.0% (HPLC)
≥99.0%

form

powder

optical activity

[α]20/D +34±1°, 15 hr, c = 10% in H2O

mol wt

342.30 g/mol

ign. residue

≤0.1% (as SO4)

loss

≤1% loss on drying, 110 °C

mp

~235 °C (dec.)
239 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤0.1 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤150 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

application(s)

microbiology

SMILES string

OC[C@@H](O)[C@@H](O[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)C=O

InChI

1S/C12H22O11/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12/h1,4-12,14-21H,2-3H2/t4-,5+,6+,7+,8+,9-,10+,11+,12-/m0/s1

InChI key

DKXNBNKWCZZMJT-WELRSGGNSA-N

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General description

Cellobiose is a disaccharide that is a reducing sugar. It is added to culture media as a nutrient supplement, specifically as a carbohydrate source, and can be used to differentiate bacteria based on their ability to ferment cellobiose. For example, Vibrio spp. can ferment cellobiose which results in acid production and can be indicated by the pH indicator bromothymol blue, which turns yellow at acidic pH. The addition of cellobiose in the media also stimulates the initial growth of Salmonella.

Application

Cellobiose has applications as a carbohydrate source in culture media and biochemical characterization of microorganisms, based on their carbohydrate fermentation abilities

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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