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Description
TCI D3554 Dimethyl Hexadecanedioate is the dimethyl diester of a long-chain sixteen-carbon dicarboxylic acid, supplied as a monomer and synthetic intermediate for organic chemistry and polymer chemistry laboratories. The molecule consists of an extended hydrophobic methylene chain terminated at both ends by reactive methyl ester groups. This symmetrical arrangement makes it a highly useful building block whenever researchers need a long-chain linker carrying two identical reaction points, whether for extending a polymer chain or for constructing large-ring systems.
The characteristic that makes this compound a frequent choice is its stability and ease of handling compared with the free dicarboxylic acid form. As a diester it dissolves more readily in organic solvents, is not notably hygroscopic, and reacts in a controlled manner in transesterification, aminolysis, reduction to the corresponding diol, and controlled hydrolysis to mono- or dicarboxylic acid products. Its long methylene chain imparts flexibility, a low melting point in the resulting polymers, and a wax-like character that is useful in materials studies. The two equivalent ester groups also simplify interpretation of spectroscopic data.
In Indonesian laboratories this material is typically used in university and institutional research settings working on polyester and polyamide synthesis, in materials chemistry groups studying flexible long-chain polymers, and in organic synthesis laboratories that require a symmetrical bifunctional intermediate. It is also suited to teaching and method-development work, where a stable, easily handled diester is preferable to a free diacid for routine bench-scale preparations and repeatable student or trainee exercises.
Laboratory Applications
Polyester synthesis — the two equivalent methyl ester ends undergo transesterification with diols in a controlled way, giving a predictable long-chain repeat unit for step-growth polymerisation.
Polyamide and amide-linked polymer preparation — aminolysis of both ester groups with diamines proceeds under milder, more manageable conditions than direct reaction of the free dicarboxylic acid.
Macrocyclisation studies — the long, flexible methylene chain with two identical reactive termini makes it a natural substrate for forming large-ring compounds in ring-closure experiments.
Diol intermediate preparation — reduction of both ester groups yields the corresponding long-chain diol, providing a convenient route to symmetrical bifunctional alcohol intermediates for further synthesis.
Materials and formulation research — the hydrophobic chain and wax-like character allow the compound to be evaluated as a flexible, low-melting component in polymer property and materials characterisation studies.
Specifications
Brand: TCI
CAS Number: 19102-90-0
Catalogue Number: D3554
Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack Sizes: available in standard TCI research pack sizes; please confirm the currently offered packs when ordering
Storage: keep in a tightly closed original container, protected from moisture, in a cool and well-ventilated place
Handling and Storage
Store the product in its original tightly closed container in a cool, dry and well-ventilated area, away from heat sources, ignition sources and incompatible reagents such as strong acids, strong bases and strong oxidising agents. Although the diester is not markedly hygroscopic, keeping the container sealed protects it from moisture uptake and from slow hydrolysis of the ester groups. Handle in a fume hood using safety glasses, chemically resistant gloves and a laboratory coat, and avoid skin contact, eye contact and inhalation of vapours or dust. Use clean, dry glass or otherwise chemically compatible labware when weighing and transferring, return the container promptly to storage after use, and dispose of residues and contaminated materials as chemical waste in accordance with institutional procedures. Always consult the manufacturer's safety data sheet before first use.
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