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25997-59-5

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25997-59-5 Structure

25997-59-5 Structure
IdentificationBack Directory
[Name]

6-Bromo-2-naphthyl α-D-galactopyranoside
[CAS]

25997-59-5
[Synonyms]

BR-NAP-ALPHA-D-GAL
6-BROMO NAPHTHYL GALACTOPYRANOSIDE
6-Bromo-2-naphthyl alpha-D-galactoside
6-Bromo-2-naphthyl-α-D-galactopyranoside
6-BROMO-2-NAPHTHYL-A-D-GALACTOPYRANOSIDE
6-Bromo-2-Naphthyl-Alpha-D-Galactopyran-
BROMO-2-NAPHTHYL-A-D-GALACTOPYRANOSIDE, 6-
alpha-D-6-Bromo-2-naphthylgalactopyranoside
6-BROMO-2-NAPHTHYL-ALPHA-D-GALACTOPYRANOSIDE
2-(6-BROMONAPHTHYL)-ALPHA-D-GALACTOPYRANOSIDE
(6-Bromo-2-naphthalenyl)α-D-galactopyranoside
BROMO-2-NAPHTHYL-a-D-GALACTOPYRANOSIDE, 6-(RG)
6-Bromo-2-naphthyl α-D-galactopyranoside USP/EP/BP
(2R,3R,4S,5R,6R)-2-(6-bromonaphthalen-2-yl)oxy-6-(hydroxymethyl)oxane-3,4,5-triol
(2R,3R,4S,5R,6R)-2-[(6-bromo-2-naphthyl)oxy]-6-methylol-tetrahydropyran-3,4,5-triol
[EINECS(EC#)]

247-398-4
[Molecular Formula]

C16H17BrO6
[MDL Number]

MFCD00066434
[MOL File]

25997-59-5.mol
[Molecular Weight]

385.21
Chemical PropertiesBack Directory
[Melting point ]

225°C
[Boiling point ]

609℃
[density ]

1.698
[Fp ]

322℃
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H315-H319-H335
[Precautionary statements ]

P261-P271-P280
[HS Code ]

29389090
Hazard InformationBack Directory
[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.]
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