22150

D-(+)-Cellobiose

≥99.0%, suitable for microbiology, Reducing sugar disaccharide

• Synonyme(s) : β-D-Glc-(1→4)-D-Glc, 4-O-β-D-Glucopyranosyl-D-glucose
• Formule empirique (notation de Hill): C₁₂H₂₂O₁₁
• Numéro CAS: 528-50-7
• Poids moléculaire : 342.30
• Numéro Beilstein : 93795
• Numéro CE : 208-436-5
• Numéro MDL: MFCD00136034
• Code UNSPSC : 41106212
• ID de substance PubChem : 329752272
• Nomenclature NACRES : NA.85

Propriétés

• Niveau de qualité: 200
• Pureté: ≥99.0% (HPLC); ≥99.0%
• Forme: powder
• Activité optique: [α]20/D +34±1°, 15 hr, c = 10% in H₂O
• Poids mol.: 342.30 g/mol
• Résidus de calcination: ≤0.1% (as SO₄)
• Perte: ≤1% loss on drying, 110 °C
• Pf: ~235 °C (dec.); 239 °C (dec.) (lit.)
• Traces d'anions: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Traces de cations: 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
• Chaîne SMILES: 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
• Clé InChI: DKXNBNKWCZZMJT-WELRSGGNSA-N

Description

Description générale

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

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)