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| | 6-Bromo-2-naphthyl α-D-galactopyranoside Basic information |
| | 6-Bromo-2-naphthyl α-D-galactopyranoside Chemical Properties |
| Melting point | 225°C | | Boiling point | 609℃ | | density | 1.698 | | Fp | 322℃ | | solubility | soluble in Methanol, Water |
| | 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 Preparation Products And Raw materials |
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