1-Butyl-3-methylimidazolium Bromide TCI B2193

Chemical Identity

CAS No.: 85100-77-2
PubChem: CID 2734236·SID 87565053
Formula: C8H15BrN2
Molecular weight: 219.12 g/mol
Purity: >98.0%(HPLC)(T)
Reference databases: ChemSpider·ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 1-butyl-3-methylimidazol-3-ium bromide
SMILES: CCCCN1C=C[N+](=C1)C.[Br-]
InChIKey: KYCQOKLOSUBEJK-UHFFFAOYSA-M

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1-Butyl-3-methylimidazolium Bromide is an ionic liquid that plays a significant role in various chemical reactions and synthesis processes. It is widely used as a solvent, reaction medium, or catalyst in laboratory experiments. Its unique chemical properties make it suitable for applications requiring stable and non-polar environments. This compound is particularly valuable in scenarios where traditional solvents may not perform optimally, offering a reliable alternative for chemical synthesis and process development.

The properties that make this ionic liquid a preferred choice include its non-volatile nature and high boiling point. These characteristics ensure stability under high-temperature conditions and in vacuum environments, making it ideal for complex chemical reactions. Additionally, its ability to absorb moisture allows it to be used in reactions that require a hygroscopic environment. The absence of water in its composition also makes it useful in purification and separation processes, enhancing its versatility in laboratory settings.

In Indonesian laboratories, 1-Butyl-3-methylimidazolium Bromide is commonly used in applied chemical research. It finds applications in organic synthesis, electrochemistry, and other specialized fields. Its reliability and performance in diverse experimental conditions make it a go-to material for researchers and technicians working on advanced chemical processes. Its consistent performance supports innovation and accuracy in scientific investigations.

Advantages (TCI brochure)

Aryl bromides react with styrene to afford stilbenes in high yields without adding a phosphine ligand
Stilbene yields of 88-99 percent reported for aryl iodide and aryl bromide substrates (Pd(OAc)2 1 mol%)

TCI brochures (PDF)

Ionic Liquids 2026-06-08 · p. 7

Related TCI products

Organic synthesis experiments benefit from this ionic liquid due to its non-polar nature and stability, enabling efficient reaction conditions.
Electrochemical studies utilize this compound as a non-volatile solvent, providing a stable environment for electrode reactions.
Separation and purification processes leverage its hygroscopic properties to facilitate the isolation of compounds in a controlled environment.
High-temperature reactions take advantage of its high boiling point, allowing for reactions under vacuum or elevated temperature conditions.
Research in green chemistry employs this material as an eco-friendly alternative to traditional volatile solvents, reducing environmental impact.

From the TCI brochure

Heck reaction (solvent)

Brand	TCI
CAS number	85100-77-2
Molecular formula	—
Purity	—
Category	Chemistry > Specialty Synthesis > Ionic Liquids
Pack sizes	Available in various quantities as per supplier specifications
Physical form	Liquid
Storage	Store in a cool, dry place away from direct sunlight

Data from the TCI brochure

Y (%) stilbene, entry 2 (X = Br, R = CHO)	90 (Pd(OAc)2 (1 mol%), bmimBr, NaOAc, 100-110 °C, 24 h)
Y (%) stilbene, entry 3 (X = Br, R = MeCO)	88 (Pd(OAc)2 (1 mol%), bmimBr, NaOAc, 100-110 °C, 24 h)

Source: TCI brochure R5058 (2026-06-08)

This ionic liquid should be stored in a cool, dry place, away from direct sunlight and sources of heat. It is recommended to use sealed containers made of materials compatible with its chemical properties to prevent contamination and evaporation. Due to its non-volatile nature, it does not require refrigeration but should be kept in a controlled environment to maintain its integrity. Laboratory personnel should handle it with care, using appropriate personal protective equipment to ensure safety. It is important to avoid exposure to moisture, as it can affect its performance in chemical reactions. Proper storage ensures the material remains effective for use in various experimental applications.

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