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

Synonym(s):2,3,4,6-Tetra-O-acetyl-α-D-galactopyranosyl bromide

CAS NO.：3068-32-4
Empirical Formula: C14H19BrO9
Molecular Weight: 411.2
MDL number: MFCD00063686
EINECS: 221-324-0
SAFETY DATA SHEET (SDS)
Update Date: 2023-04-23 13:52:06

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

What is 2,3,4,6-Tetra-O-acetyl-alpha-D-galactopyranosyl bromide?

Chemical properties

White Crystalline Solid

The Uses of 2,3,4,6-Tetra-O-acetyl-alpha-D-galactopyranosyl bromide

Temperature and moisture sensitive; Store in freezer; Stabilized with 2% CaCO3

What are the applications of Application

Acetobromo-α-D-galactose is used as an organic condensation reagent for chemistries

Purification Methods

Purify acetobromo-D-galactose as for the glucose analogue (next entry). If the compound melts lower than 87o or is highly coloured, then dissolve it in CHCl3 (ca 3 volumes) and extract with H2O (2 volumes), 5% aqueous NaHCO3, and again with H2O and dry it over Na2SO4. Filter and evaporate it in a vacuum. The partially crystalline solid or syrup is dissolved in dry Et2O (must be very dry) and recrystallised by adding pet ether (b 40-60o) to give a white product. [McKellan & Horecker Biochemical Preparations 11 111 1960, Beilstein 17/6 V 369.]

Properties of 2,3,4,6-Tetra-O-acetyl-alpha-D-galactopyranosyl bromide

Melting point:	83-85 °C
Boiling point:	412.0±45.0 °C(Predicted)
alpha	210 º (c=3, CHCl3)
Density	1.7028 (rough estimate)
refractive index	1.4490 (estimate)
storage temp.	Inert atmosphere,Store in freezer, under -20°C
solubility	Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly), Water (Sli
form	Solid
color	White to Pale Yellow
Water Solubility	Sparingly soluble
BRN	96671
Stability:	Temperature Sensitive; Store in freezer; Stabilized with 2% CaCO3
CAS DataBase Reference	3068-32-4(CAS DataBase Reference)

Safety information for 2,3,4,6-Tetra-O-acetyl-alpha-D-galactopyranosyl bromide

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.