TCI D2107 4,5-Diphenylimidazole is a heterocyclic compound built on an imidazole core that carries two phenyl rings at the 4 and 5 positions. In the laboratory, this solid material serves both as a heterocyclic building block and as a functional scaffold in its own right. The imidazole core provides two nitrogen atoms with distinct characters: one is basic and acts as an electron-pair donor, while the other is an NH group that can donate a hydrogen bond or undergo dialkylation. The two flanking phenyl groups extend the conjugated system and impose a characteristic steric environment, making the compound an attractive starting point for a wide range of synthetic research.
The characteristics that lead researchers to select this material are the aromatic stability of the imidazole core, which is retained across a variety of reaction conditions, combined with the diphenyl conjugation that influences the optical and electronic behaviour of the molecule. The 4,5-diphenylimidazole framework is closely related to the lophine family, well known for its chemiluminescent properties, and is therefore frequently used as a reference structure in chemical light-emission research. In addition, the free NH group allows the formation of N-substituted derivatives, imidazolium salts, and N-heterocyclic carbene precursors, while the nitrogen atoms give the molecule its coordinating and hydrogen-bonding character.
In Indonesian laboratories, this compound is typically handled in university research groups, institutional chemistry laboratories, and industrial R&D units working on organic synthesis and materials chemistry. It is normally used at small preparative scale on the bench, weighed out as a solid for reactions, derivatisation studies, or the preparation of reference material. Because it functions as a building block rather than a finished formulation, it usually enters a workflow as an early-stage intermediate that is subsequently modified, characterised, and carried forward into further synthetic steps.
- Heterocyclic building block synthesis: the intact imidazole ring and reactive NH position let researchers elaborate the scaffold into larger target molecules without rebuilding the core ring system from scratch.
- N-substituted derivative preparation: the free NH group is readily alkylated or otherwise substituted, giving direct access to N-functionalised imidazoles for structure–activity and structure–property investigations.
- Imidazolium salt and N-heterocyclic carbene precursor chemistry: dialkylation of both nitrogen atoms converts the compound into imidazolium species that serve as recognised precursors to N-heterocyclic carbenes.
- Chemiluminescence research: as a member of the lophine-related structural family known for chemical light emission, it is a natural reference compound for studies on light-emitting organic reactions.
- Optical and electronic materials studies: the extended diphenyl conjugation attached to the aromatic imidazole core makes the molecule useful for exploring how substitution influences optical and electronic molecular properties.
| Brand | TCI |
|---|---|
| CAS number | 668-94-0 |
| Molecular formula | — |
| Purity | — |
| Category | Chemistry > Building Blocks > Heterocyclic Building Blocks |
| Pack sizes | available in standard TCI catalogue pack sizes; please confirm the required size when ordering. |
| Physical form | solid material |
| Storage | keep in the tightly closed original container, protected from moisture and light, in accordance with the manufacturer's documentation. |
Store the material in its original tightly closed container in a cool, dry, well-ventilated chemical store, away from direct sunlight, heat sources, and incompatible reagents. Amber glass or the manufacturer's supplied packaging is suitable for keeping the solid protected from moisture and light, and containers should be re-sealed immediately after each use to limit atmospheric exposure. Handle and weigh the solid in a fume hood where practical, and avoid generating or inhaling dust. Wear a laboratory coat, safety goggles, and chemical-resistant gloves during handling, and wash hands thoroughly afterwards. Label all secondary containers clearly, keep the container upright, and consult the manufacturer's safety data sheet before use and before any disposal of residues.
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