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Description
DL-Glyceraldehyde Diethyl Acetal is a protected form of glyceraldehyde, the simplest of all sugars, containing only three carbon atoms. In this compound, the reactive aldehyde group has been converted into a diethyl acetal, making the molecule considerably more stable and far easier to store and handle than the free sugar. The DL designation indicates that the material is a racemic mixture of both enantiomers. In the laboratory, it serves as a starting material and synthetic building block in carbohydrate chemistry, where its three-carbon framework carrying two hydroxyl groups and one protected carbonyl group provides a highly versatile point of departure.
The principal characteristic that leads researchers to select this material is its markedly better stability compared with free glyceraldehyde, which readily polymerises and degrades during storage. The acetal protection is resistant to basic conditions yet can be removed again by mild acid hydrolysis, allowing the chemist to unmask the aldehyde group at precisely the stage of the synthesis where it is required. This reversible protecting-group strategy is exactly what makes the compound so useful for building longer sugar molecules as well as other chiral compounds, since the reactive centre remains dormant until it is deliberately released.
In Indonesian laboratories, this reagent is typically found in university and institutional research groups working on carbohydrate chemistry, organic synthesis, and chemical biology. It is commonly used in postgraduate research projects and in synthetic work where a small, well-defined chiral building block is needed. Because it is supplied as a TCI catalogue item, it is generally ordered in research-scale quantities for bench synthesis rather than for routine production use.
Laboratory Applications
Carbohydrate synthesis: the three-carbon backbone with two hydroxyl groups serves as a compact starting point for constructing longer sugar chains through controlled chain-extension steps.
Chiral building block chemistry: the compound provides a small, well-defined scaffold that researchers can elaborate into more complex chiral molecules within multi-step synthetic sequences.
Protecting-group methodology studies: the diethyl acetal offers a clear working example of base-stable, acid-labile protection, making it useful for teaching and developing deprotection strategies.
Masked aldehyde chemistry: the protected carbonyl allows reactions to be run on the hydroxyl groups first, with the aldehyde released later by mild acid hydrolysis when required.
Glycoscience research: as a stable surrogate for free glyceraldehyde, it supports investigations in chemical biology where the unprotected triose would polymerise or degrade before use.
Specifications
Brand: TCI (Tokyo Chemical Industry), catalogue number G0216
CAS Number: 10487-05-5
Category: Chemistry > Chemical Biology > Glycoscience
Chemical class: protected triose; diethyl acetal derivative of DL-glyceraldehyde
Pack sizes: available in standard TCI research-scale catalogue pack sizes
Storage: store in a tightly closed container in a cool, dry place, protected from acidic conditions
Handling and Storage
Store the material in its original tightly closed container in a cool, dry location away from direct sunlight and heat sources. Because the acetal protecting group is cleaved by acid, keep the compound well separated from acids and acidic vapours during both storage and handling. Use clean, dry glassware and avoid introducing moisture into the container when dispensing. Handle in a well-ventilated area or fume hood while wearing standard laboratory personal protective equipment, including safety glasses, gloves, and a laboratory coat. Always consult the manufacturer's safety data sheet before use and follow institutional procedures for waste disposal.
