Description

1-(2,6-Diisopropylphenyl)-3-(2,4,6-Trimethylphenyl)-4,5-Dihydroimidazolium Chloride is a high-purity, advanced N-heterocyclic carbene (NHC) precursor salt, essential for modern organometallic catalysis. This compound matters as a key ligand source for generating highly active and selective metal complexes used in fine chemical and pharmaceutical synthesis. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing efficient catalytic processes.

Application

• As a precursor for N-heterocyclic carbene (NHC) ligands in homogeneous catalysis.
• For the synthesis of palladium-NHC complexes used in cross-coupling reactions (e.g., Suzuki-Miyaura, Heck, Buchwald-Hartwig).
• In the preparation of ruthenium-based catalysts for olefin metathesis and other organometallic transformations.
• For developing gold(I) and copper(I) complexes applicable in medicinal chemistry and materials science.
• As a research chemical in academic and industrial laboratories for exploring new catalytic methodologies.
• In the fine chemical industry for the scalable production of complex organic molecules.

Basic Information

Product Name	1-(2,6-Diisopropylphenyl)-3-(2,4,6-Trimethylphenyl)-4,5-Dihydroimidazolium Chloride
CAS No.	866926-59-2
Molecular Formula	C24H33ClN2
Molecular Weight	384.98 g/mol
Synonyms	1-(2,6-Diisopropylphenyl)-3-(2,4,6-trimethylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride; SIPr·HCl; 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydroimidazolium chloride (common misnomer for related compound); NHC precursor salt; Imidazolinium salt; IPr*HCl (common abbreviation); 1-(2,6-Diisopropylphenyl)-3-mesityl-4,5-dihydroimidazolium chloride
EINECS	Contact for details

Quality Control

Our 1-(2,6-Diisopropylphenyl)-3-(2,4,6-Trimethylphenyl)-4,5-Dihydroimidazolium Chloride is manufactured under strict quality systems to ensure batch-to-batch consistency and high purity, critical for catalytic performance. Each lot is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant ISO guidelines and can provide material suitable for research and development under cGMP-like controls upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment. For long-term storage, consider handling under an inert atmosphere such as nitrogen or argon to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.