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A7562

Acetobromo-α-D-galactose

≥93% (TLC)

Synonym(s):

2,3,4,6-Tetra-O-acetyl-α-D-galactopyranosyl bromide

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About This Item

Empirical Formula (Hill Notation):
C14H19BrO9
CAS Number:
3068-32-4
Molecular Weight:
411.20
UNSPSC Code:
12352201
NACRES:
NA.25
PubChem Substance ID:
24891250
MDL number:
MFCD00063686
Beilstein/REAXYS Number:
96671
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biological source

synthetic (organic)

Quality Level

200

assay

≥93% (TLC)

form

powder

optical activity

[α]25/D 200 to 225 °, c = 0.5% (w/v) in chloroform

contains

1% CaCO3 as stabilizer

color

white to off-white

solubility

chloroform: soluble 5 mg/mL

shipped in

dry ice

storage temp.

−20°C

SMILES string

CC(=O)OC[C@H]1O[C@H](Br)[C@H](OC(C)=O)[C@@H](OC(C)=O)[C@H]1OC(C)=O

InChI

1S/C14H19BrO9/c1-6(16)20-5-10-11(21-7(2)17)12(22-8(3)18)13(14(15)24-10)23-9(4)19/h10-14H,5H2,1-4H3/t10-,11+,12+,13-,14+/m1/s1

InChI key

CYAYKKUWALRRPA-HTOAHKCRSA-N

Related Categories

Application

2,3,4,6-Tetra-O-acetyl-α-D-galactopyranosyl bromide is used as an organic condensation reagent for chemistries such as N- and S- galactosylation reactions and the synthesis of spacer-equipped phosphorylated di-, tri- and tetrasaccharide fragments of the O-specific polysaccharides.

Other Notes

To gain a comprehensive understanding of our extensive range of Monosaccharides for your research, we encourage you to visit our Carbohydrates Category page.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000482797
0000482798
0000482797
0000482798
0000333387

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David J Claffey et al.
Carbohydrate research, 339(14), 2433-2440 (2004-09-25)
Condensation of 2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranosyl-, 2,3,4-tri-O-acetyl-alpha-D-xylopyranosyl- and of 2,3,4,6-tetra-O-acetyl-alpha-D-galactopyranosyl bromides with l,4:3,6-dianhydro-D-glucitol under Koenigs-Knorr conditions, and using the Helferich modification of the reaction showed regioselectivity in glysosylation at C-5 of isosorbide.
Ahmed I Khodair et al.
Carbohydrate research, 346(18), 2831-2837 (2011-11-18)
N- and S-galactosylation was carried out via the reaction of 5-((Z)-arylidene)-2-thioxo-4-thiazolidinones with 2,3,4,6-tetra-O-acetyl-α-d-galactopyranosyl bromide under alkaline conditions or under silylation conditions. Deacetylation of the N-galactosylation products was performed with concentrated hydrochloric acid in methanol (3.5%) or sodium methoxide in methanol
Bart Ruttens et al.
Carbohydrate research, 341(9), 1077-1080 (2006-05-03)
The synthesis of oligosaccharide fragments of the O-specific polysaccharide of Vibrio cholerae O139 containing a 4,6-cyclic phosphate galactose residue linked to GlcNAc is described. 8-Azido-3,6-dioxaoctyl 2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl-(1-->3)-2-acetamido-4,6-O-benzylidene-2-deoxy-beta-D-glucopyranoside, obtained by condensation of 2,3,4,6-tetra-O-acetyl-alpha-D-galactopyranosyl bromide and 8-azido-3,6-dioxaoctyl 2-acetamido-4,6-O-benzylidene-2-deoxy-beta-D-glucopyranoside, was converted to 8-azido-3,6-dioxaoctyl 3-O-benzyl-beta-D-galactopyranosyl-(1-->3)-2-acetamido-6-O-benzyl-2-deoxy-beta-D-glucopyranoside
Jiajia Qian et al.
The Journal of pharmacy and pharmacology, 71(6), 929-936 (2019-03-06)
Resveratrol (Res), a naturally occurring polyphenol, has shown pharmacological activities in treatment of liver diseases. However, the application of Res was limited by its poor bioavailability and liver targeting. Herein, 3-O-β-D-Galactosylated Resveratrol (Gal-Res) was synthesized by structural modification of Res
Abdel Kader Mansour et al.
Nucleosides, nucleotides & nucleic acids, 22(9), 1825-1833 (2003-10-10)
The 1-(2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl)-3-aryl-5-benzyl (or substituted benzyl)-1,2,4-triazin-6(1H)-/ones or thiones were prepared via galactosidation of 3-aryl-5-benzyl (or substituted benzyl)-1,2,4-triazin-6(1H)-/ones or thiones with 2,3,4,6-tetra-O-acetyl-alpha-D-galactopyranosyl bromide. The structure of the new galactosyl derivatives was based on both spectroscopic and chemical evidences.
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Global Trade Item Number

SKUGTIN
A7562-10G04061832387079
A7562-25G04061832387086

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