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63630

D-(+)-蜜二糖

Name: <SC>D</SC>-(+)-蜜二糖
Brand: SIAL

suitable for microbiology, ≥99.0%

别名:

6-O-α-D-吡喃半乳糖基-D-葡萄糖

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关于此项目

经验公式（希尔记法）:

C₁₂H₂₂O₁₁

化学文摘社编号:

585-99-9

分子量:

342.30

UNSPSC Code:

41106212

NACRES:

NA.74

PubChem Substance ID:

329759880

EC Number:

209-568-6

Beilstein/REAXYS Number:

93360

MDL number:

MFCD00168065

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属性

Quality Segment

200

assay

≥99.0% (HPLC), ≥99.0%

form

powder

optical activity

[α]20/D +137±3°, 10 hr, c = 5% in H₂O

packaging

pkg of 10 g, pkg of 50 g

ign. residue

≤0.1% (as SO₄)

color

colorless to white

solubility

H₂O: 0.1 g/mL, clear, colorless

anion traces

chloride (Cl^-): ≤50 mg/kg, sulfate (SO₄^2-): ≤200 mg/kg

cation traces

As: ≤0.1 mg/kg, Ca: ≤500 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤10 mg/kg, K: ≤50 mg/kg, Mg: ≤10 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]1O[C@H](OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O)[C@H](O)[C@@H](O)[C@H]1O

InChI

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

InChI key

AYRXSINWFIIFAE-GFRRCQKTSA-N

说明

General description

D-(+)-Melibiose is a reducing disaccharide composed of a unit of galactose linked to a unit of glucose by a glycosidic bond α (1 → 6). It is commonly found in plants and the roots of certain legumes. D-(+)-Melibiose is not metabolized by humans but serves as a substrate for certain bacteria and fungi. It is used as a differential medium component in microbiological media to detect the fermentation of melibiose by microorganisms. It helps identify specific bacterial species based on their ability to ferment melibiose.

Application

D-(+)-Melibiose has applications in the fields of microbiology, research and development, and in food and pharmaceutical industries. Melibiose fermentation test is used to differentiate bacteria like Enterobacteriaceae (like Salmonella, E.coli, shigella, Citrobacter, Klebsiella, Enterobacter) and yeasts. It is also used for the differentiation between the plant pathogenic bacteria Klebsiella pneumoniae and K. variicola.

Preparation Note

Keep the container tightly closed in a dry and well-ventilated place.Hygroscopic, Store under inert gas.

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存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c