57842-33-8

Basic information

• Product Name: 5-amine-2-(4-aminobenzene)-1-phenylbenzimidazole
• Synonyms: 5-amine-2-(4-aminobenzene)-1-phenylbenzimidazole
• CAS NO: 57842-33-8
• Molecular Weight: 300.363
• Mol File: 57842-33-8.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 5-amine-2-(4-aminobenzene)-1-phenylbenzimidazole(CAS DataBase Reference)
• NIST Chemistry Reference: 5-amine-2-(4-aminobenzene)-1-phenylbenzimidazole(57842-33-8)
• EPA Substance Registry System: 5-amine-2-(4-aminobenzene)-1-phenylbenzimidazole(57842-33-8)

Safety Data

• Hazardous Substances Data: 57842-33-8(Hazardous Substances Data)

Upstream product

• 122-04-3 4-nitro-benzoyl chloride 
• 55315-12-3 2-amino-4-nitro-N₁-phenylaniline 
• 70-34-8 2,4-Dinitrofluorobenzene 
• 62-53-3 aniline 
• 961-68-2 N-phenyl-2,4-dinitroaniline 
• 313505-02-1 5-nitro-2-(4-nitrobenzene)-1-phenylbenzimidazole 

Relevant articles and documents

Incorporation of: N -phenyl in poly(benzimidazole imide)s and improvement in H2O-absorbtion and transparency

5-Amine-2-(4-amino-benzene)-1-phenyl-benzimidazole (N-PhPABZ) was successfully synthesized and polymerized with 3,3′,4,4′-biphenyl tetracarboxylic dianhydride (BPDA) to obtain a novel N-phenyl-poly(benzimidazole imide) (N-Ph-PBII). The successful incorporation of N-phenyl addressed the issue of high H2O-absorption of traditional PBIIs while retained the superheat resistance property. The resulting N-Ph-PBII possessed a high glass-transition temperature (Tg) up to 425 °C and a low affinity for water of 1.4%. Furthermore, the loose molecular packing and noncoplanar structures led to an increase in optical transparency for the modified PBII.