Description

1,2:3,4-Di-o-Isopropylidene-D-Galactopyranose is a key protected sugar derivative, widely used as a versatile chiral building block and intermediate in organic synthesis. Its locked pyranose structure provides excellent stereochemical control, making it invaluable for the production of complex molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries seeking high-purity intermediates for glycosylation and asymmetric synthesis.

Application

• Pharmaceutical Intermediate: A crucial chiral precursor for the synthesis of nucleoside analogs, antiviral drugs, and other active pharmaceutical ingredients (APIs).
• Glycochemistry & Glycobiology: Serves as a protected galactose donor for the controlled synthesis of oligosaccharides, glycoconjugates, and glycomimetics.
• Fine Chemical Synthesis: Used as a starting material for catalysts, ligands, and specialty chemicals requiring specific sugar-based chirality.
• Agrochemical Research: Employed in the development of novel, biologically active compounds with sugar-modified structures.
• Academic & R&D Laboratories: A standard reagent for methodological development in synthetic organic chemistry and carbohydrate research.

Basic Information

Product Name	1,2:3,4-Di-o-Isopropylidene-D-Galactopyranose
CAS No.	4064-06-6
Molecular Formula	C12H20O6
Molecular Weight	260.28 g/mol
Synonyms	1,2:3,4-Di-O-isopropylidene-α-D-galactopyranose; D-Galactose Diethyl Acetal; Diacetone-D-galactose; 1,2:3,4-Di-O-(1-methylethylidene)-α-D-galactopyranose; Diacetonegalactose; Di-O-isopropylidene-D-galactopyranose; α-D-Galactopyranose, 1,2:3,4-bis-O-(1-methylethylidene)-; 1,2:3,4-Di-O-isopropylidenegalactopyranose
EINECS	223-770-4

Quality Control

Our 1,2:3,4-Di-o-Isopropylidene-D-Galactopyranose is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and chiral integrity, to ensure it meets the high standards required for synthetic applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and specific impurities is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]²⁰D	-50° to -55° (c=1 in H₂O)
Melting Point	154°C - 158°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.