D-(+)-纤维二糖，D-(+)-Cellobiose；≥99.0%, suitable for microbiology, Reducing sugar disaccharide

别名：D-纤维二糖；4-O-β-D-吡喃葡萄糖基-D-葡萄糖；D-(+)-纤维二糖；β-D-Glc-(1→4)-D-Glc；4-O-β-D-Glucopyranosyl-D-glucose

Empirical Formula (Hill Notation): C12H22O11 CAS号: 528-50-7 分子量: 342.30 Beilstein: 93795 EC 号: 208-436-5 MDL编号: MFCD00136034 PubChem化学物质编号: 329752272 NACRES: NA.85

制造商品牌: 密理博 Millipore , 西格玛 Sigma-Aldrich

货号（SKU）: 22150

CAS号: 528-50-7

MDL号: MFCD00136034

签订合同 √ 正规发票 √ 技术支持 √ 质量保障 √ 全程可追溯 √

目录价.SKU-Variant

5g
25g [+¥614.00]
100g [+¥2,374.00]
500g [+¥9,484.00]

¥376.00

数量:

说明

纤维素是一种二糖，是一种还原糖。它被添加到培养基中作为营养补充，特别是作为碳水化合物来源，并可用于根据细菌发酵纤维二糖的能力来区分细菌。例如，弧菌可以发酵纤维二糖，从而产生酸，并可由pH指示剂溴百里酚蓝指示，在酸性pH下变黄。在培养基中添加纤维二糖也会刺激沙门氏菌的初始生长。
基于其碳水化合物发酵能力，纤维素在培养基和微生物生化表征中作为碳水化合物来源有应用

一般描述

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.

应用

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

属性

质量水平

200

测定

≥99.0% (HPLC)
≥99.0%

形式

powder

旋光性

[α]20/D +34±1°, 15 hr, c = 10% in H₂O

分子量

342.30 g/mol

灼烧残渣

≤0.1% (as SO₄)

缺失

≤1% loss on drying, 110 °C

mp

~235 °C (dec.)
239 °C (dec.) (lit.)

痕量阴离子

chloride (Cl^-): ≤50 mg/kg
sulfate (SO₄^2-): ≤50 mg/kg

痕量阳离子

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

安全信息

储存分类代码

11 - Combustible Solids

WGK

WGK 1

个人防护装备

Eyeshields, Gloves, type N95 (US)

商品规格

属性名称	属性值
储存温度 Storage temp.	常温阴凉避光
全球实时库存 Availability √	美国St. Louis ≥ 50 \| 欧洲Eur. ≥ 12 \| 東京Tokyo ≥ 20 \| 香港与北京 ≥ 50

商品标签 [tags]

d-纤维二糖 (3)