人与动牲交AV免费,久久久久久AV无码免费网站,综合干狼人综合首页,欧美人伦禁忌DVD

Welcome to Zhejiang Synose Tech Co., Ltd.!

Carbohydrate Derivative

Methyl-α-D-Galactopyranoside

Synonyms: Methyl alfa-D-Galactopyranoside Monohydrate, 1-O-mehyl-alfa-D-Galactoside, α-Methylgalactose, Methyl galactoside, 1-O-Methyl-Galactoside, Alfa-methyl-D-galactoside.

Molecular Formula: C7H16O7

Molecular weight: 212

CAS No.: 93302-26-2/3396-99-4

Molecular Structure:

Quality Standard:

Item

Specification

Appearance

Assay , %

Meling point, ℃

Specific rotation ,(C=1,H2O)

Water, %

Residue on ignition, %

White to off-white granule or powder 

≥98.0

104.0~110.0

+173.0~+183.0

≤9.0

≤0.10

Characteristics: It is white odourless crystalline powder, soluble in water, methanol and hot ethanol etc. 

Uses: Used in the synthesis of pharmaceutical intermediates such as Methyl-2,3,4,6-tetra-O-benzyl-D-galactopyranose, 4-amino-4-deoxy-D-hexuronic acid or alcohol. Used for synthesis of methyl galactopyranoside derivate, for example, methyl α-D- galactopyranonic acid; methyl 3-O-benzoyl-α-D-galactopyranoside; methyl 2,3,6-tri-O-acetyl or benzyl-α-D-galactopyranoside, methyl 2,3,4,6-tetra-O-acetyl-α-D-galactopyranoside, methyl 2,3,4-tri-O-acetyl or benzoyl-α-D-galactopyranoside; methyl 3,4 -O-isopropylidene-α-D-galactopyranoside; methyl 4,6-O-isopropylidene-α-D-galactopyranoside; methyl 2,3,4-tri-O-acetyl-6-bromo or iodine-6-deoxy-α-D-galactopyranoside and methyl 2,4-di-O-acetyl 3,6-anhydro-α-D-galactopyranoside, 1,5- anhydro-α-D-galactitol, etc. Used in synthetic carbopeptides, polymers combined with carbohydrates, Sialyloligosaccharides, Thiolactose, Thiocellobiose, (1→3) and (1→6) glycan and other oligosaccharides. Used for synthesis glycosidase inhibitor 1,5-di-deoxy-1,5-imino-D- galactitol, disaccharide block of Shiga bacillus vaccine methyl O-α-D-L-rhamnopyranosyl-(1→2)-α-D-galactopyranosides and so on. Used for synthesis Galactopyranoside-Binding Boronic Acids or benzoboroxoles.

Storage:Maintain in cool, dry containment.

Package:25kg/drum or as customer require.

Expiration Date: 2 years.

No.1958 Liyu Road Jinhua, Zhejiang, China

0086-579-82270620

expo@synose.com

Home|About us|News|Products|Custom|Contact us|中文版|English|日本語|Fran?ais|Pусский|Espa?a
Copyright(C)2017, Zhejiang Synose Tech Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice 浙ICP備06002737號-1
铜梁县| 林口县| 亚东县| 洛浦县| 揭阳市| 正镶白旗| 荥经县| 瑞安市| 石楼县| 米林县| 海宁市| 响水县| 雅江县| 高碑店市|