Description

1,2:3,4-Di-o-Isopropylidene-A-L-Galactopyranose is a high-purity, protected sugar derivative widely used as a critical chiral building block in organic synthesis. Its value lies in its ability to provide a stable, non-reactive scaffold for the controlled introduction of functional groups, enabling the synthesis of complex molecules with precise stereochemistry. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries, particularly for developing nucleoside analogs, glycosidase inhibitors, and other bioactive compounds. The CAS number for this product is 70932-37-5.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of antiviral and anticancer nucleoside analogs.
• Glycoscience Research: Serves as a protected precursor for the study of carbohydrate chemistry and enzyme mechanisms.
• Agrochemical Synthesis: Used in creating chiral active ingredients for advanced pesticides and herbicides.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances requiring specific stereochemistry.
• Diagnostic Reagents: Acts as a starting material for synthesizing labeled sugars and probes used in biochemical assays.
• Material Science: A potential monomer or modifier for creating novel biodegradable or functional polymers.

Basic Information

Product Name	1,2:3,4-Di-o-Isopropylidene-A-L-Galactopyranose
CAS No.	70932-37-5
Molecular Formula	C₁₂H₂₀O₆
Molecular Weight	260.28 g/mol
Synonyms	1,2:3,4-Di-O-isopropylidene-α-L-galactopyranose; Diacetone-L-galactose; L-Galactose Diacetonide; 1,2:3,4-Di-O-(1-methylethylidene)-α-L-galactopyranose; α-L-Galactopyranose, 1,2:3,4-bis-O-(1-methylethylidene)-; (3aR,5R,6S,6aR)-5-[(R)-1,2-Dihydroxyethyl]-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-ol
EINECS	Contact for details

Quality Control

Our 1,2:3,4-Di-o-Isopropylidene-A-L-Galactopyranose is manufactured 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 research and synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and specific impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under anhydrous conditions to maintain stability and purity. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]²⁰D	-85° to -95° (c=1 in CHCl₃)
Melting Point	158°C - 162°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.