2-(4-Aminophenyl)-1H-benzimidazol-5-amine (APBIA)

Basic Information of APBIA

Product Name	2-(4-Aminophenyl)-1H-benzimidazol-5-amine
Abbreviation	APBIA
CAS Number	7621-86-5
Molecular Formula	C13H12N4
Molecular Weight	224.26 g/mol
Appearance	Pale beige to pale brown solid
Purity	≥99%
Package	1kg/bottle, 20kg/drum, or customized
Molecular Structure

Key Properties

• High thermal stability associated with benzimidazole heterocycle

• Dual amino functionality enabling polymerization or crosslinking

• Good chemical resistance in demanding environments

• Potential for incorporation into functional polymer membranes

• Moderate polarity supporting intermolecular and interfacial interactions

Typical Application Contexts of APBIA

• Polyimide and Heterocyclic Polymer Chemistry: Investigated as a diamine component in polyimide and related heterocyclic polymer systems where rigidity and thermal stability are desired, including specialty functional polymer materials .

• Functional Membrane Materials Research: Studied in polymer membranes containing benzimidazole units, such as proton-conducting or hybrid membrane systems, at the material research and formulation level.

• Advanced Polymer Material Studies: Explored as an intermediate in polymer modification and structure–property investigations related to electronic and insulating polymer research .

• Organic and Medicinal Chemistry Research: Utilized as a heterocyclic building block in laboratory-scale organic synthesis and pharmaceutical research contexts, without implying clinical or commercial drug applications.