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Description
TCI D1298 N,N'-Dimethyl-1,6-diaminohexane is a long-chain aliphatic diamine in which a six-carbon backbone links two methylated secondary amine groups positioned at either end of the molecule. As a non-heterocyclic building block, it serves as an essential starting material in the preparation of polymers, cationic surfactants, and a wide range of bifunctional molecules that require a defined distance between two reactive centres. The central hexamethylene chain contributes conformational flexibility together with a well-defined bridge length, allowing researchers to design structures with predictable spatial separation between functional groups.
The characteristics that make this compound a preferred choice are its symmetrical structure and the dual reactivity available at both ends of the molecule. Both nitrogen atoms are secondary amines, so they react readily as nucleophiles in alkylation and acylation reactions, yet once they have reacted they leave behind no additional amide hydrogen of the kind found with primary diamines. This property is widely exploited to form doubly quaternary ammonium salts by quaternising both ends of the chain, a key step in the preparation of ionene polymers and gemini amphiphilic compounds. The material presents as a liquid that is basic and hygroscopic in character.
In Indonesian laboratories, this building block is typically used in synthetic organic chemistry groups at universities and research institutes, as well as in industrial development work on polymers and surface-active agents. It is generally handled at the bench scale for the assembly of bifunctional intermediates, for cross-linking studies, and for the preparation of quaternary ammonium derivatives. Because the compound is a basic, hygroscopic liquid, laboratories usually work with it under controlled conditions and dispense it as required rather than leaving the container open.
Laboratory Applications
Ionene polymer synthesis — quaternising both secondary amine ends of the molecule produces the repeating cationic backbone units that define this polymer class, with the hexamethylene chain setting the spacing between charges.
Gemini surfactant preparation — the symmetrical structure with two reactive nitrogen centres separated by a defined spacer makes it well suited to building twin-headed amphiphilic molecules from a single precursor.
Cationic surfactant development — the secondary amines are readily converted into quaternary ammonium groups, giving formulators a straightforward route to permanently charged surface-active species.
Bifunctional intermediate construction — the two identical reactive ends allow chemists to attach the same or different functional groups at a predictable, reproducible separation along the flexible carbon chain.
Alkylation and acylation reactions — both nitrogen atoms act as nucleophiles under standard conditions, and because they are secondary amines the products carry no additional amide hydrogen that would complicate downstream chemistry.
Specifications
Brand: TCI
CAS number: 13093-04-4
Product code: D1298
Category: Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Physical form: liquid, basic and hygroscopic in character
Pack sizes: available in the pack sizes listed for this catalogue item
Storage: keep tightly closed and protected from moisture
Handling and Storage
Store the container tightly closed in a cool, dry, well-ventilated area away from moisture, since the material is hygroscopic and will absorb water from the atmosphere if left exposed. Original supplier packaging or a compatible tightly sealed bottle is the most suitable container, and transfers should be kept brief to limit air contact. Because the compound is basic, keep it separated from acids and other incompatible materials. Handle it in a fume hood using gloves, safety glasses, and a laboratory coat, dispense only the quantity required for immediate use, and consult the manufacturer's safety data sheet before beginning work.
