Description

Bis(1,3-Diphenyl-2-Imidazolidinylidene) is a specialized organic compound belonging to the class of persistent carbenes, specifically a bis(imidazolidinylidene). This compound is valued for its role as a highly effective ligand and catalyst precursor in advanced organometallic chemistry and materials science. It is primarily utilized by researchers and manufacturers in the pharmaceutical, fine chemical, and polymer industries for developing novel synthetic pathways and catalytic systems.

Application

• Catalysis: As a robust N-heterocyclic carbene (NHC) ligand for transition metal catalysts (e.g., Pd, Ru, Au) used in cross-coupling, metathesis, and other organic transformations.
• Pharmaceutical Intermediates: In the research and synthesis of complex active pharmaceutical ingredients (APIs) requiring precise stereochemical control.
• Polymer Science: As an initiator or catalyst component in the polymerization of specialized monomers to create advanced polymeric materials.
• Materials Chemistry: For the development of novel organometallic frameworks, sensors, and electronic materials.
• Fine Chemical Synthesis: Enabling challenging bond-forming reactions in the production of high-value specialty chemicals.
• Academic & Industrial R&D: A key reagent for exploring new catalytic cycles and reaction mechanisms in chemical research.

Basic Information

Product Name	Bis(1,3-Diphenyl-2-Imidazolidinylidene)
CAS No.	2179-89-7
Molecular Formula	C30H28N4
Molecular Weight	444.58 g/mol
Synonyms	1,1'-(1,3-Diphenyl-2-imidazolidinylidene)bis[1,3-diphenyl-2-imidazolidinylidene]; Bis(N,N'-diphenylimidazolidin-2-ylidene); Bis(1,3-diphenylimidazolidin-2-ylidene); Persistent Carbene; Bis(imidazolidinylidene) ligand; NHC Dimer; Tetraphenylbis(imidazolidinylidene)
EINECS	Contact for details

Quality Control

Our Bis(1,3-Diphenyl-2-Imidazolidinylidene) is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and batch-to-batch consistency, meeting the stringent requirements of research and industrial applications. Certificates of Analysis (COA) detailing purity, identity, and other critical parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. The material is light-sensitive and should be handled under an inert atmosphere (e.g., nitrogen or argon) when appropriate to prevent degradation.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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