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Product Code B2121-LT-10g
Price £90 ex. VAT

A diphenylamine with a biphenyl esters linker

As the intermediate for polyimides and imine synthesis in application of high performance polymers and sensors


Specifications | MSDS | Literature and Reviews


4,4'-Bis(3-aminophenoxy)biphenyl (43BAPOBP), CAS number 105112-76-3, has a biphenyl linker capped with two 3-aminophenoxy groups. 4,4'-Bis(3-aminophenoxy)biphenyl is typically use as a precursor for polyimides which have high chemical and thermal resistance. The polyimides are ideal for polymer matrices due to its high miscibility induced by intermolecular charge transfer. A shape memory film fabricated from the polyimides can recover to its original flat shape from temporary spiral shape on hot plate set at 240 °C. This is promising in the field of thermal actuators.

43BAPOBP can reacts with aldehyde to form imines. A fluorescence thin film developed from the imines has the ability to detect (sensitivity of 150 ppb – 1.5 ppm) and remove hydrogen chloride (187.5 w/w%) and ammonia (37.5 w/w%).

General Information


CAS Number 105112-76-3
Chemical Formula C24H20N2O2
Full Name 4,4'-Bis(3-aminophenoxy)biphenyl
Molecular Weight 368.44 g/mol
Synonyms 3,3'-[[1,1'-Biphenyl]-4,4'-diylbis(oxy)]dianiline, 3,3'-[4,4'-Biphenyldiylbis(oxy)]dianiline
Classification / Family Diamine building block, Polyimides, Sensors, High performance polymers

Chemical Structure


4,4'-Bis(3-aminophenoxy)biphenyl (43BAPOBP) chemical structure, CAS 105112-76-3.
4,4'-Bis(3-aminophenoxy)biphenyl (43BAPOBP) chemical structure, CAS 105112-76-3

Product Details


Purity >99%
Melting Point Tm = 147 °C
Appearance White to reddish yellow powder/crystal

MSDS Documentation


4,4'-Bis(3-aminophenoxy)biphenyl (43BAPOBP)4,4'-Bis(3-aminophenoxy)biphenyl (43BAPOBP) MSDS Sheet

Literature and Reviews


  1. Preparation and characterization of polyimide/TiO2 nano-composites for non-lethal weapon, X. Cui, Journal of Physics: Conference Series, 1759, 012005(2021); DOI: 10.1088/1742-6596/1759/1/012005.
  2. High cycle-life shape memory polymer at high temperature, D. Kong et al., Sci. Rep., 6, 33610 (2016). DOI: 10.1038/srep33610.
  3. Dielectric elastomers with dual piezo-electrostatic response optimized through chemical design for electromechanical transducers, C. Tugui et al., J. Mater. Chem. C, 5, 824(2017); DOI: 10.1039/c6tc05193f.
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