Description

1,3,5-Tris(4-aminophenyl)benzene (CAS No. 118727-34-7) is a high-purity organic compound with the molecular formula C₂₄H₂₁N₃, widely utilized in advanced materials research and specialty chemical synthesis. This trifunctional aromatic amine features a central benzene core symmetrically substituted with three 4-aminophenyl groups, enabling its use as a versatile building block for covalent organic frameworks (COFs), polyimide polymers, and other high-performance materials. With exceptional thermal stability and reactivity, it serves as a key monomer in the production of heat-resistant resins, adhesives, and coatings. Available in >98% purity (HPLC), this product is rigorously tested for consistency and meets stringent research-grade specifications. Proper handling under inert atmosphere is recommended due to its air-sensitive amine groups.

Properties

• CAS Number: 118727-34-7
• Complexity: 364
• IUPAC Name: 4-[3,5-bis(4-aminophenyl)phenyl]aniline
• InChI: InChI=1S/C24H21N3/c25-22-7-1-16(2-8-22)19-13-20(17-3-9-23(26)10-4-17)15-21(14-19)18-5-11-24(27)12-6-18/h1-15H,25-27H2
• InChI Key: QHQSCKLPDVSEBJ-UHFFFAOYSA-N
• Exact Mass: 351.173547683
• Molecular Formula: C24H21N3
• Molecular Weight: 351.4
• SMILES: C1=CC(=CC=C1C2=CC(=CC(=C2)C3=CC=C(C=C3)N)C4=CC=C(C=C4)N)N
• Topological: 78.1
• Monoisotopic Mass: 351.173547683
• Synonyms: 1,3,5-Tris(4-aminophenyl)benzene, 118727-34-7, DTXSID40476649, DTXCID40427459, 678-332-6, 5′-(4-Aminophenyl)-[1,1′:3′,1”-terphenyl]-4,4”-diamine, 4-[3,5-BIS(4-AMINOPHENYL)PHENYL]ANILINE, MFCD18207723, [1,1′:3′,1”-Terphenyl]-4,4”-diamine, 5′-(4-aminophenyl)-, YSZC501, SCHEMBL301883, CHEBI:188593, QHQSCKLPDVSEBJ-UHFFFAOYSA-N, 1,3,5-tri(4-aminophenyl)benzene, 1,3,5-tris(4-aminophenyl)-benzene, AKOS016014838, CS-W004607, FT62957, CS-12386, SY055477, DB-097688, T2728, F17748, 4-[3,5-bis(4-aminophenyl)phenyl]aniline; 5′-(4-Aminophenyl)-[1,1′:3′,1”-terphenyl]-4,4”-diamine; 1,3,5-Tris(4-aMinophenyl)benzene

1,3,5-Tris(4-aminophenyl)benzene is primarily employed as a triamine linker in the synthesis of porous covalent organic frameworks (COFs) for gas storage applications. It serves as a crosslinking agent in high-temperature polyimide resins used in aerospace composites and flexible printed circuits. Researchers also utilize it to develop fluorescent sensors due to its conjugated aromatic structure and amine reactivity. The compound’s symmetry makes it valuable for constructing dendrimers and star-shaped polymers in nanotechnology applications.

Safety and Hazards

GHS Hazard Statements

• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (50%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• STOT SE 3 (50%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.