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Description
TCI D1249 2,4-Dimethyl-1-pentene is a branched alkene that belongs to the group of non-heterocyclic building blocks and is widely used in synthetic work and analytical procedures in the laboratory. Its molecule contains a terminal double bond with a methyl group on the second carbon, together with additional branching at the fourth carbon, forming a distinctive carbon skeleton. A structure of this kind is useful for researchers who need a hydrocarbon substrate with a particular geometry, whether for studying the reaction behaviour of alkenes or for use as a reference compound in instrumental analysis of light hydrocarbon mixtures.
The characteristic that makes this compound a preferred choice is its branching pattern, which delivers steric and electronic influence at the same time. The methyl group adjacent to the double bond raises the substitution level of the alkene, thereby affecting relative stability and the direction of addition reactions, while the branching located further away contributes mainly to spatial aspects and to physical properties such as volatility and solubility in non-polar organic solvents. This combination makes the compound a good comparison material when researchers wish to separate the contribution of steric factors from electronic factors. Supplied under the TCI brand, it offers the consistency expected of a catalogued building block.
In Indonesian laboratories, this material is typically found in university chemistry departments, research institutes, and industrial laboratories that carry out organic synthesis and hydrocarbon analysis. It is generally used at the bench scale for exploratory reactions, method development, and teaching demonstrations of alkene chemistry, as well as in analytical laboratories that prepare reference mixtures for instrumental work. Because it is a catalogued building block rather than a bulk commodity, it is normally ordered in the pack size that matches a specific project.
Laboratory Applications
Alkene reaction studies: the terminal double bond with an adjacent methyl group allows researchers to examine addition behaviour and how substitution level affects relative stability and reaction direction.
Reference compound in instrumental analysis: its distinctive branched skeleton makes it a suitable standard when identifying or characterising components within light hydrocarbon mixtures during analytical work.
Organic synthesis building block: as a non-heterocyclic building block, it provides a defined branched carbon framework that can be carried forward into more elaborate target molecules.
Steric versus electronic comparison work: the branching close to and far from the double bond lets researchers isolate spatial effects from electronic effects within a single hydrocarbon substrate.
Solvent and volatility behaviour studies: the branching pattern influences physical properties such as volatility and solubility in non-polar organic solvents, supporting method development and physical property investigations.
Specifications
Brand: TCI
Product code: D1249
CAS number: 2213-32-3
Chemical name: 2,4-Dimethyl-1-pentene
Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes: available in the catalogue pack sizes offered for this product code; storage details follow the manufacturer's label.
Handling and Storage
Store the container tightly closed in a cool, well-ventilated area away from heat, open flames, sparks, and other ignition sources, and keep it separated from strong oxidising agents. Use the original manufacturer's container or another container of compatible material, and close it firmly after each use to limit evaporation and vapour release. Handle the material in a fume hood, wear safety glasses, chemical-resistant gloves, and a laboratory coat, and avoid inhaling vapours or allowing contact with skin and eyes. Ground containers where appropriate when transferring, and always follow the manufacturer's safety data sheet together with your institution's chemical waste and disposal procedures.
