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Product Code B1941-100g
Price £38 ex. VAT

A phenyl ether diamine building block

Normally as a monomer for the preparation of polyimides in application of batteries, fuel cells, low dielectric materials and OLEDs


Specifications | MSDS | Literature and Reviews


2,2-Bis[4-(4-aminophenoxy)phenyl]propane (BAPP), CAS number 13080-86-9, is a diamino monomer with a diphenoxy-phenyl core. Owing to the amines on both ends of the molecule, 2,2-bis[4-(4-aminophenoxy)phenyl]propane is desired for the crosslinking polymerisation with carboxylic acid or carboxylic dianhydride building blocks to synthesise polyimides. The polyimide synthesized from this monomer has low dielectric constant and low dielectric loss, making it an ideal candidate for communication application such as high frequency (10 GHz) 5G communication substrates. With low methanol permeability, the derived polyimide is used as membranes in direct methanol fuel cells. This type of polyimide also exhibits excellent cryogenic mechanical properties and fire resistance.

Other than polyimide, BAPP reacts with dialdehydes building blocks to synthesise polyimines with blue photoluminescence emission for OLEDs applications.

General Information


CAS Number 13080-86-9
Chemical Formula C27H26N2O2
Full Name 2,2-Bis[4-(4-aminophenoxy)phenyl]propane
Molecular Weight 410.52 g/mol
Synonyms 4,4'-((Propane-2,2-diylbis(4,1-phenylene))bis(oxy))dianiline
4-[4-[2-[4-(4-aminophenoxy)phenyl]propan-2-yl]phenoxy]aniline
4,4'-(4,4'-Isopropylidenediphenyl-1,1'-diyldioxy)dianiline
Classification / Family Phenyl ether derivatives, Diamine building blocks, Polyimides, OFETs, Batteries

Chemical Structure


2,2-Bis[4-(4-aminophenoxy)phenyl]propane (BAPP) chemical structure, CAS 13080-86-9
2,2-Bis[4-(4-aminophenoxy)phenyl]propane (BAPP) chemical structure, CAS 13080-86-9

Product Details


Purity >99%
Melting Point Tm = 136 °C – 128 °C
Appearance White to off-white powder

MSDS Documentation


2,2-Bis[4-(4-aminophenoxy)phenyl]propane (BAPP)2,2-Bis[4-(4-aminophenoxy)phenyl]propane (BAPP) MSDS Sheet

Literature and Reviews


  1. Characterization and optical properties of oligoazomethines with triphenylamine moieties exhibiting blue, blue-green and green light, D. Sek et al., Spectrochim. Acta A, 72, 1-10(2009); DOI: 10.1016/j.saa.2008.12.030.
  2. Physical and thermal properties of poly(ethylene terephthalate) fabric coated with electrospun polyimide fibers, I. Butnaru et al., High Perform. Polym., 27(5), 616-624(2015); DOI: 10.1177/0954008315584178.
  3. Polyimide/crown ether composite film with low dielectric constant and low dielectric loss for high signal transmission, H. Li et al., RSC Adv., 13, 7585–7596(2023); DOI: 10.1039/d2ra07043j.
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