22150

D-(+)-Cellobiose

≥99.0%, suitable for microbiology, Reducing sugar disaccharide

• Szinonimák: Cellobiose, Cellose, Beta-Cellobiose, D-Cellobiose, β-D-Glc-(1→4)-D-Glc, 4-O-β-D-Glucopyranosyl-D-glucose
• Tapasztalati képlet (Hill-képlet): C₁₂H₂₂O₁₁
• CAS-szám: 528-50-7
• Molekulatömeg: 342.30
• Beilstein: 93795
• EC-szám: 208-436-5
• MDL-szám: MFCD00136034
• UNSPSC kód: 41106212
• PubChem Substance ID: 329752272
• NACRES: NA.85

Tulajdonságok

• Minőségi szint: 200
• Teszt: ≥99.0% (HPLC); ≥99.0%
• Forma: powder
• optikai aktivitás: [α]20/D +34±1°, 15 hr, c = 10% in H₂O
• molekulatömeg: 342.30 g/mol
• izzítási maradék: ≤0.1% (as SO₄)
• veszteség: ≤1% loss on drying, 110 °C
• mp: ~235 °C (dec.); 239 °C (dec.) (lit.)
• anion nyomok: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• kation nyomok: 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
• alkalmazás(ok): 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
• Nemzetközi kémiai azonosító kulcs: DKXNBNKWCZZMJT-WELRSGGNSA-N

Leírás

Általános leírás

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.

Alkalmazás

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

Biztonsági adatok

• Tárolási osztály kódja: 11 - Combustible Solids
• WGK: WGK 1
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable
• Egyéni védőeszköz: Eyeshields, Gloves, type N95 (US)