22150

D-(+)-纤维二糖

≥99.0%, suitable for microbiology, Reducing sugar disaccharide

• 同義詞: β-D-Glc-(1→4)-D-Glc, 4-O-β-D-吡喃葡萄糖基-D-葡萄糖
• 經驗公式（希爾表示法）: C₁₂H₂₂O₁₁
• CAS號碼: 528-50-7
• 分子量：: 342.30
• Beilstein: 93795
• EC號碼: 208-436-5
• MDL號碼: MFCD00136034
• 分類程式碼代碼: 41106212
• PubChem物質ID: 329752272
• NACRES: NA.85

屬性

• 品質等級: 200
• 化驗: ≥99.0% (HPLC); ≥99.0%
• 形狀: powder
• 光學活性: [α]20/D +34±1°, 15 hr, c = 10% in H₂O
• 分子量: 342.30 g/mol
• 燃燒殘留物: ≤0.1% (as SO₄)
• 損耗: ≤1% loss on drying, 110 °C
• mp: ~235 °C (dec.); 239 °C (dec.) (lit.)
• 負離子痕跡: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• 正離子痕跡: 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
• 應用: microbiology
• SMILES 字串: 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 密鑰: DKXNBNKWCZZMJT-WELRSGGNSA-N

描述

一般說明

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.

應用

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

安全資訊

• 儲存類別代碼: 11 - Combustible Solids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable
• 個人防護裝備: Eyeshields, Gloves, type N95 (US)