Description

1,4-Bis(4-aminophenoxy)benzene (CAS No. 3491-12-1) is a high-purity aromatic diamine compound with the molecular formula C₁₈H₁₆N₂O₂. This advanced chemical intermediate is characterized by its symmetrical structure featuring two terminal aminophenoxy groups linked via a central benzene ring, as described by its IUPAC name 4-[4-(4-aminophenoxy)phenoxy]aniline. The compound appears as a light-colored crystalline powder with excellent thermal stability, making it particularly valuable for high-performance polymer synthesis. With a molecular weight of 292.33 g/mol, this specialty chemical is packaged under inert conditions to ensure maximum stability and purity. Our product undergoes rigorous QC testing including HPLC, NMR, and elemental analysis to guarantee >98% purity, meeting the exacting standards of materials science research and specialty chemical manufacturing.

Properties

• CAS Number: 3491-12-1
• Complexity: 283
• IUPAC Name: 4-[4-(4-aminophenoxy)phenoxy]aniline
• InChI: InChI=1S/C18H16N2O2/c19-13-1-5-15(6-2-13)21-17-9-11-18(12-10-17)22-16-7-3-14(20)4-8-16/h1-12H,19-20H2
• InChI Key: JCRRFJIVUPSNTA-UHFFFAOYSA-N
• Exact Mass: 292.121177757
• Molecular Formula: C18H16N2O2
• Molecular Weight: 292.3
• SMILES: C1=CC(=CC=C1N)OC2=CC=C(C=C2)OC3=CC=C(C=C3)N
• Topological: 70.5
• Monoisotopic Mass: 292.121177757
• Synonyms: 1,4-Bis(4-aminophenoxy)benzene, 677-976-5, 3491-12-1, 4-[4-(4-aminophenoxy)phenoxy]aniline, 1,4-Phenylene-di-4-aminophenyl ether, ANILINE, p,p’-(p-PHENYLENEDIOXY)DI-, 1,4-Phenylenedi(4-aminophenyl ether), 4-[4-(4-Aminophenoxy)phenoxy]phenylamine, bisaminophenoxybenzene, CCRIS 6685, 1,4-Bis-(4-aminophenoxy)-benzene, 4,4′-(p-Phenylenedioxy)dianiline, Benzenamine, 4,4′-[1,4-phenylenebis(oxy)]bis-, MFCD00039153, BRN 0422398, Benzenamine, 4,4′-(1,4-phenlenebis(oxy))bis-, Oprea1_095445, SCHEMBL65211, YSWG196, 1,4-bis(p-aminophenoxy)benzene, SCHEMBL10625324, JCRRFJIVUPSNTA-UHFFFAOYSA-, DTXSID70188465, AKOS003242083, Hydroquinone Bis(4-aminophenyl) Ether, CS-W009994, SB66821, AS-14366, DB-002369, 4-[4-(4-Aminophenoxy)phenoxy]phenylamine #, B1243, EU-0066968, NS00122462, F10185, Benzenamine,4,4′-[1,4-phenylenebis(oxy)]bis-, InChI=1/C18H16N2O2/c19-13-1-5-15(6-2-13)21-17-9-11-18(12-10-17)22-16-7-3-14(20)4-8-16/h1-12H,19-20H2

Application

1,4-Bis(4-aminophenoxy)benzene serves as a key monomer in the synthesis of advanced polyimides and other high-temperature polymers, particularly for aerospace and electronics applications. The compound’s rigid yet flexible molecular structure contributes to exceptional thermal and mechanical properties in resulting polymers. Researchers utilize this diamine for developing novel membrane materials for gas separation and fuel cell technologies. It also finds application as a building block for liquid crystal polymers and high-performance adhesives requiring thermal stability above 300°C.

Safety and Hazards

GHS Hazard Statements

• H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
• H312 (50%): Harmful in contact with skin [Warning Acute toxicity, dermal]
• H315 (50%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (50%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H332 (50%): Harmful if inhaled [Warning Acute toxicity, inhalation]
• H335 (50%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
• H400 (50%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]

Precautionary Statements

• P261, P264, P264+P265, P270, P271, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (100%)
• Acute Tox. 4 (50%)
• Skin Irrit. 2 (50%)
• Eye Irrit. 2 (50%)
• Acute Tox. 4 (50%)
• STOT SE 3 (50%)
• Aquatic Acute 1 (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.