1,3-Cyclohexanediamine (cis- and trans- mixture) TCI C0813

Chemical Identity

Other names: 1,3-Diaminocyclohexane (cis- and trans- mixture)
CAS No.: 3385-21-5
PubChem: CID 18814·SID 87565879
Formula: C6H14N2
Molecular weight: 114.19 g/mol
Purity: >95.0%(GC)(T)
Reference databases: ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: cyclohexane-1,3-diamine
SMILES: C1CC(CC(C1)N)N
InChIKey: GEQHKFFSPGPGLN-UHFFFAOYSA-N
MDL: MDL00059563

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1,3-Cyclohexanediamine (cis- and trans- mixture) from TCI is a cycloaliphatic diamine. It has two primary amino groups at positions 1 and 3 of a cyclohexane ring and is supplied as a mixture of cis and trans isomers. In materials science it serves as a monomer for making polymers such as polyamides, polyimides, and polyureas, and it is also used as a curing agent (hardener) for epoxy resins. In the chemistry laboratory it is used as a building block for organic synthesis and as a precursor for ligands in metal complexes.

Researchers choose cycloaliphatic diamines because the saturated ring makes the structure rigid without adding an aromatic system. This combination is often used to make polymers whose mechanical and optical properties differ from those of polymers based on aromatic diamines or straight-chain aliphatic diamines. The two primary amino groups are strongly nucleophilic, so they react readily with dianhydrides, diacyl chlorides, diisocyanates, and epoxides. Because it is a cis/trans isomer mixture, the material suits polymer applications that do not need pure stereochemistry. Its liquid form also makes measuring and dispensing easier.

In Indonesia, this material is relevant to polymer, coatings, composites, and adhesives research groups at universities and in industrial and research laboratories. Graduate students and academic researchers can use it to synthesize new polyamides, polyimides, and polyureas, or to formulate and test epoxy systems. Synthetic and coordination chemistry groups can also use it as a diamine building block and ligand precursor when they prepare metal complexes for catalysis or materials studies.

TCI brochures (PDF)

Raw Materials for Polyimide Synthesis 2026-05-11 · p. 3
Biomaterials Research Reagents 2025-02-19 · p. 18
Monomers 2025-05-28 · p. 30

Related TCI products

Polyamide synthesis: its two primary amino groups react readily with diacyl chlorides, making it a useful cycloaliphatic monomer for preparing polyamides with a rigid, saturated ring in the backbone.
Polyimide synthesis: its strongly nucleophilic amines react with dianhydrides, so researchers can build polyimides with properties that differ from those made with aromatic diamines.
Polyurea preparation: its fast reaction with diisocyanates makes it suitable for polyurea studies in coatings, elastomers, and other materials research.
Epoxy resin curing: as a cycloaliphatic diamine hardener, it reacts with epoxide groups to crosslink resins, which supports work on coatings, composites, and structural adhesives.
Ligand and building block chemistry: two amino groups placed at positions 1 and 3 of a cyclohexane ring make it a versatile precursor for metal-complex ligands and more complex organic molecules.

Brand	TCI (product code C0813)
CAS number	3385-21-5
Molecular formula	—
Purity	—
Category	Materials Science > Polymer/Macromolecule Reagents > Monomers
Pack sizes	see the product listing for available pack sizes, and follow the TCI label and Safety Data Sheet for storage requirements
Physical form	liquid
Storage	—

Isomeric composition: mixture of cis and trans isomers

Keep 1,3-Cyclohexanediamine in its original, tightly closed container in a cool, dry, well-ventilated area, away from heat sources and incompatible materials. Store it apart from acids, acid chlorides, anhydrides, isocyanates, and oxidizing agents, because its amino groups react readily with these substances. Keep the container closed when not in use to limit contact with air and moisture. Handle it in a fume hood and wear chemical-resistant gloves, safety goggles, and a lab coat. Use clean, dry glass or compatible dispensing equipment. Always check the TCI Safety Data Sheet for the exact storage conditions, hazards, and disposal instructions before use.

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