2,2'-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole
- CAS NO.：7189-82-4
- Empirical Formula: C42H28Cl2N4
- Molecular Weight: 659.6
- MDL number: MFCD00060081
- EINECS: 230-555-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 06:15:18
What is 2,2'-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole?
The Uses of 2,2'-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole
2,2''-Bis(2-chlorophenyl)-4,4'',5,5''-tetraphenyl-1,2''-biimidazole (CAS# 7189-82-4) is a hexaarylbiimidazole (HABI), a visible light thiol-ene photoinitiator, such as in the polymerization of 1,6-hexanediol diacrylate by hexaarylbisimidazoles and heterocyclic mercapto compounds.
Properties of 2,2'-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole
| Melting point: | 194°C |
| Boiling point: | 810.3±75.0 °C(Predicted) |
| Density | 1.24±0.1 g/cm3(Predicted) |
| vapor pressure | 0-0Pa at 20-25℃ |
| solubility | Chloroform (Slightly), DMSO (Slightly) |
| form | Solid:crystalline |
| pka | 3.37±0.10(Predicted) |
| color | Light yellow to Yellow to Green |
| CAS DataBase Reference | 7189-82-4(CAS DataBase Reference) |
| EPA Substance Registry System | 1H-Imidazole, 2-(2-chlorophenyl)-1-[2-(2-chlorophenyl)-4,5-diphenyl-2H-imidazol-2-yl]-4,5-diphenyl- (7189-82-4) |
Safety information for 2,2'-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H413:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2,2'-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole
| InChIKey | MHDULSOPQSUKBQ-UHFFFAOYSA-N |
| SMILES | C1(C2=CC=CC=C2Cl)N(C2(C3=CC=CC=C3Cl)N=C(C3=CC=CC=C3)C(C3=CC=CC=C3)=N2)C(C2=CC=CC=C2)=C(C2=CC=CC=C2)N=1 |
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