6-Bromo-2-naphthyl α-D-galactopyranoside Chemical Properties

Melting point:

225°C

Boiling point:

609℃

Density 

1.698

Flash point:

322℃

solubility 

soluble in Methanol, Water

Safety Information

HS Code 

29389090

6-Bromo-2-naphthyl α-D-galactopyranoside Usage And Synthesis

Uses

6-Bromo-2-naphthyl α-D-galactopyranoside can be acted as a useful reagent for determination of alpha-D-Galactosidase activity.

Definition

ChEBI: An alpha-D-galactoside having a 6-bromo-2-naphthyl substituent at the anomeric position.

Purification Methods

It is prepared from penta-O-acetyl-D-galactoside, 6-bromo-2naphthol and ZnCl2. The resulting tetra-acetate (2g) is hydrolysed by dissolving in 0.3N KOH (100mL) and heating until the solution is clear, then filtering and cooling to give colourless crystals of the -isomer which are collected and recrystallised twice from hot MeOH. The high specific rotation is characteristic of the isomer. The tetraacetate has m 155-156o, [] D 20 +60o (c 1, CHCl3) [Dey & Pridham Biochem J 115 47 1969] [reported m 75-85o, [] D 24 +94o (c 1.3, dioxane), Monis et al. J Histochem Cytochem 11 653 1963]. [Beilstein 17 IV 2972.]

6-Bromo-2-naphthyl α-D-galactopyranoside(25997-59-5)Related Product Information

• 2-Bromo-6-methoxynaphthalene
• METHYL-ALPHA-D-GALACTOPYRANOSIDE
• 2-Bromonaphthalene
• PH-ALPA-D-GAL
• 2-(2-NAPHTHOXY)ETHANOL
• D-Galactose
• 6-Bromo-2-naphthyl α-D-galactopyranoside
• 6-Bromo-2-naphthol
• 6-ETHOXY-2-BROMONAPHTHALENE
• METHYL ALPHA-D-FUCOPYRANOSIDE
• 2-BROMO-6-BUTOXYNAPHTHALENE