1-Isopropylimidazole TCI I0845

Chemical Identity

CAS No.: 4532-96-1
PubChem: CID 10176113·SID 160870967
Formula: C6H10N2
Molecular weight: 110.16 g/mol
Purity: >97.0%(GC)(T)
Reference databases: ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 1-propan-2-ylimidazole
SMILES: CC(C)N1C=CN=C1
InChIKey: IPIORGCOGQZEHO-UHFFFAOYSA-N

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1-Isopropylimidazole is an imidazole derivative substituted at a ring nitrogen atom with an isopropyl group, and it serves as a versatile heterocyclic building block in synthetic laboratories. The imidazole ring is widely recognised both as a core motif appearing in many biologically active molecules and as an important ligand class in coordination chemistry. Because the isopropyl group occupies one of the two nitrogen positions, that site is effectively locked, leaving the remaining nitrogen free to act as a base or as an electron donor during the formation of metal complexes. This combination makes the compound a practical starting point for building more elaborate heterocyclic structures.

The properties that lead researchers to select this compound are its moderate basicity, its good coordinating ability, and the steric hindrance contributed by the isopropyl group, which helps to control reaction selectivity. The material is supplied as a liquid, so it can be transferred easily with a micropipette or a syringe and mixed into organic solvents without any lengthy dissolution step. This ease of handling matters a great deal in catalysis experiments that require small quantities of ligand to be added accurately. The compound is also frequently used as a precursor in the preparation of imidazolium salts and ionic liquids.

In Indonesia, this compound is widely used by chemistry laboratories engaged in organic synthesis, coordination chemistry, and materials research. Because it arrives ready to dispense in liquid form, it suits laboratories that run frequent small-scale reactions and need a ligand or building block that can be introduced directly into a reaction mixture. Its role as a precursor to imidazolium salts also makes it relevant to groups working on ionic liquid preparation and related applications.

Related TCI products

Heterocyclic building block synthesis: the free nitrogen and the substituted imidazole ring provide a reliable platform for constructing more complex heterocyclic targets in multi-step organic synthesis work.
Ligand in coordination chemistry: the remaining unsubstituted nitrogen acts as an electron donor toward metal centres, allowing the compound to form and stabilise metal complexes under laboratory conditions.
Catalysis experiments: the liquid form permits accurate addition of very small ligand quantities by micropipette or syringe, which is essential when catalyst loading must be controlled precisely.
Imidazolium salt preparation: the compound serves as a direct precursor for quaternisation reactions that convert the neutral imidazole into the corresponding imidazolium salt.
Ionic liquid research: as a starting material for imidazolium chemistry, it supports the preparation of ionic liquids used in solvent and materials studies within research laboratories.

Brand	TCI
CAS number	4532-96-1
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Heterocyclic Building Blocks
Pack sizes	available in the pack sizes listed on the product page
Physical form	liquid
Storage	store according to the conditions stated on the manufacturer's label and safety data sheet

Catalogue number: I0845

Store the container tightly closed in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and incompatible materials. Keep the compound in its original manufacturer-supplied container, or in a clean, chemically compatible, tightly sealed glass bottle if transfer is required. As a liquid amine-type heterocycle, it should be handled inside a fume hood using a micropipette or syringe to avoid vapour exposure and spillage. Laboratory personnel should wear safety glasses, chemically resistant gloves, and a laboratory coat throughout handling. Close the container immediately after dispensing, label all secondary containers clearly, and consult the manufacturer's safety data sheet before use and before disposal of any residues.

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