2-(4-aminophenyl)-5-aminobenzoxazole (APBOA) CAS 13676-47-6

Name: 2-(4-aminophenyl)-5-aminobenzoxazole (APBOA) CAS 13676-47-6
Brand: Aure Chemical
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Synonyms: 5-Amino-2-(4-aminophenyl)benzoxazole; 2-(4-Aminophenyl)benzoxazol-5-amine; 2-(4-Aminophenyl)benzo[d]oxazol-5-amine; 5-Benzoxazolamine, 2-(4-aminophenyl)-; 2-(4-Aminophenyl)-1,3-benzoxazol-5-amine; 5-Amino-2-(p-aminophenyl)benzoxazole

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Product Details

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2-(4-Aminophenyl)-5-aminobenzoxazole (APBOA), CAS 13676-47-6, also known as 5-Amino-2-(4-aminophenyl)benzoxazole or DAPBO, is a heteroaromatic diamine monomer featuring a rigid benzoxazole core and dual amine functionalities. This structure imparts high thermal stability, mechanical strength, and chemical resistance to derived polymers such as polyimides, supporting advanced materials synthesis.

Basic Information of APBOA

Product Name	2-(4-aminophenyl)-5-aminobenzoxazole
Abbreviation	APBOA
CAS Number	13676-47-6
Molecular Formula	C13H11N3O
Molecular Weight	225.25 g/mol
Appearance	Off-white to tan solid
Purity	≥99%
Package	1kg/bottle, 20kg/drum, or customized
Molecular Structure

Key Properties

High thermal stability and structural rigidity
Good chemical resistance in harsh environments
Stable mechanical properties when incorporated in polymers
Can contribute to intrinsic flame resistance in certain polymer systems
Dual amine functionality enabling polymer chain extension or crosslinking

Key Application Contexts of APBOA

High-Performance Polyimide Systems: Serves as a comonomer in rigid polyimides, copolymers, and polyimide foams designed for demanding thermal and mechanical environments, including high-temperature and aerospace-related polymer systems .

Gas Separation Membrane Research: Incorporated into rigid polyimide membranes for gas transport and separation studies, where molecular rigidity influences permeability and selectivity.

Electronics and Optoelectronic Materials: Utilized in low-dielectric polyimide formulations investigated for electronics and semiconductor-related polymer research , including flexible substrates and insulating materials.

Energy Storage Materials Research: Studied in polyimide-based binders and dielectric polymers for electrochemical and capacitive energy storage investigations.

Specialty Functional Materials: Explored in covalent organic frameworks (COFs), specialty coatings, and other specialty functional polymer systems at the material research level.

Detailed COA / TDS / MSDS are available upon request. Please Contact Us for more information.

Packaging, Logistics & Compliance Capabilities

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