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S7903

蔗糖

Name: 蔗糖
Brand: SIGMA

≥99.5% (GC), BioXtra

别名:

α-D-Glc-(1→2)-β-D-Fru, α-D-吡喃葡萄糖基β-D-呋喃果糖苷, β-D-果糖-α-D-吡喃葡萄糖苷, D(+)-蔗糖, 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:

57-50-1

分子量:

342.30

UNSPSC Code:

12352201

NACRES:

NA.21

PubChem Substance ID:

24899768

EC Number:

200-334-9

Beilstein/REAXYS Number:

90825

MDL number:

MFCD00006626

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属性

biological source

sugar cane

product line

BioXtra

assay

≥99.5% (GC)

form

crystals

optical activity

[α]20/D +66.5±1°, c = 10 in H₂O(lit.)

technique(s)

gas chromatography (GC): suitable

impurities

Insoluble matter, passes filter test

ign. residue

≤0.01% (as SO₄)

loss

≤0.2% loss on drying, HV, 18 - 26°C

color

white

pH

5.5-7.5 (20 °C, 1 M in H₂O)

mp

185-187 °C (lit.)

solubility

H₂O: 1 M, clear, colorless

anion traces

chloride (Cl^-): ≤0.005%, sulfate (SO₄^2-): ≤0.005%

cation traces

Al: ≤0.0005%, As: ≤0.0001%, Ba: ≤0.0005%, Bi: ≤0.0005%, Ca: ≤0.001%, Cd: ≤0.0005%, Co: ≤0.0005%, Cr: ≤0.0005%, Cu: ≤0.0005%, Fe: ≤0.0005%, K: ≤0.005%, Li: ≤0.0005%, Mg: ≤0.0005%, Mn: ≤0.0005%, Mo: ≤0.0005%, Na: ≤0.005%, Ni: ≤0.0005%, Pb: ≤0.0005%, Sr: ≤0.0005%, Zn: ≤0.0005%

absorption

≤0.07 at 280 in H₂O at 1 M, ≤0.09 at 260 in H₂O at 1 M

SMILES string

OC[C@H]1O[C@H](O[C@]2(CO)O[C@H](CO)[C@@H](O)[C@@H]2O)[C@H](O)[C@@H](O)[C@@H]1O

InChI

1S/C12H22O11/c13-1-4-6(16)8(18)9(19)11(21-4)23-12(3-15)10(20)7(17)5(2-14)22-12/h4-11,13-20H,1-3H2/t4-,5-,6-,7-,8+,9-,10+,11-,12+/m1/s1

InChI key

CZMRCDWAGMRECN-UGDNZRGBSA-N

说明

Application

蔗糖可用于制备用于细胞/细胞器分离的密度梯度。溶液的折射率与密度直接相关。另外，蔗糖可以用作植物、昆虫和细菌培养基的补充剂并用于各种酶促测定中。

Preparation Note

溶液可在最高121°C的温度下高压灭菌15-20分钟。此时葡萄糖和果糖会发生一定程度的水解，而这部分取决于高压灭菌锅达到所需温度和压力的速度。必须注意防止溶液焦糖化。

Other Notes

为了全面了解我们针对客户研究提供的各种二糖产品，建议您访问我们的碳水化合物分类页面。

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存储类别

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

法规信息

监管及禁止进口产品

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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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实验方案

转化酶的酶学测定

在测定转化酶活性时，使用了一种在410nm处的分光光度终点反应法进行测定。在55 ºC、pH 4.5条件下，一单位的转化酶每分钟可将1.0 μmole的蔗糖水解为转化糖。

Enzymatic Assay of Invertase

Rickwood, D., ed.

Centrifugation - a practical approach, Appendix IV-Appendix IV (1984)

Dawson, R.M.C., et al.

Data for Biochemical Research, 545-546 (1986)

Crosstalk of Cellulose and Mannan Perception Pathways Leads to Inhibition of Cellulase Production in Several Filamentous Fungi.

Lara Hassan et al.

mBio, 10(4) (2019-07-04)

It is essential for microbes to acquire information about their environment. Fungi use soluble degradation products of plant cell wall components to understand the substrate composition they grow on. Individual perception pathways have been well described. However, the interconnections between

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全球贸易项目编号

货号	GTIN
S7903	04053252668289
S7903-1KG	04061835549733
S7903-250G	04061835549740
S7903-5KG	04061835549757