AB-TFMB CAS 1449757-11-2

High-Purity AB-TFMB from Aure Chemical – Your Trusted Source

N,N'-(2,2'-Bis(trifluoromethyl)-[1,1'-biphenyl]-4,4'-diyl)bis(4-aminobenzamide) (AB-TFMB), CAS 1449757-11-2, is a fluorinated diamine monomer featuring a rigid biphenyl core with trifluoromethyl groups and amide linkages. These attributes enable the synthesis of advanced polyimides with high transparency, low linear coefficient of thermal expansion (CTE, e.g., 4.2 ppm/K), enhanced thermal stability, and improved gas permeability (e.g., oxygen transmission up to 2313 cm³/m²/day). It is supplied as a high-purity white powder (>99%) for commercial-scale production.

Basic Information of AB-TFMB

Product Name	N,N'-(2,2'-bis(trifluoromethyl)-[1,1'- biphenyl]-4,4'-diyl)bis(4-aminobenzamide)
Abbreviation	AB-TFMB
CAS Number	1449757-11-2
Molecular Formula	C28H20F6N4O2
Molecular Weight	558.47 g/mol
Appearance	White to almost white powder to crystaline
Purity	≥99%
Package	1kg/bottle, 20kg/drum, or customized
Molecular formula

Key Applications of AB-TFMB

• Polyimide Films (PI Films): Acts as a diamine precursor for synthesizing transparent, low-CTE polyimides used in flexible electronics and displays, where the trifluoromethyl groups reduce intermolecular charge transfer for better optical clarity.

• Electronics and Electrical Industries: Serves as an upstream raw material for high-performance polymers in electronic components, leveraging its rigidity and stability for applications requiring thermal and mechanical durability.

• Gas Separation Membranes: Incorporated into polyimides for membranes with high gas permeability, suitable for industrial separation processes.