2,2'-Bis(trifluoromethyl)benzidine (TFMB/TFDB) CAS 341-58-2

Synonyms: 2,2'-Bis(trifluoromethyl)- [1,1'-biphenyl]-4,4'-diamine; 4,4'-Diamino-2,2'-bis(trifluoromethyl)biphenyl; 2,2′-Bis(trifluoromethyl)-4,4′-diaminobiphenyl

Shandong Aure Chemical Co., Ltd. is one of the leading suppliers of TFMB/TFDB in China and also one of the manufacturers of this product.

We can provide customized requirements in terms of product purity, packaging specifications, and other aspects.

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Product Details

Discover Aure Chemical's High-Quality TFMB

TFDB (2,2'-Bis(trifluoromethyl)benzidine), also known as TFMB, is a fluorinated diamine monomer valued for its rigidity, aromatic structure, and electron-withdrawing trifluoromethyl groups. These properties enable the synthesis of advanced polymers and frameworks with enhanced thermal stability, transparency, UV resistance, and low thermal expansion. Widely used in high-performance polyimide synthesis for aerospace, electronics, and optoelectronic materials.

Basic Information of TFMB

Product Name	2,2'-Bis(trifluoromethyl)benzidine
Abbreviation	TFDB, TFMB
CAS Number	341-58-2
Molecular Formula	C14H10F6N2
Molecular Weight	320.23 g/mol
Appearance	Snow white powder
Purity	≥ 99.9%
Metal Ion	1ppm Max.for one single metal ions
Package	1kg/bottle, 20kg/drum, or customized
Molecular Formula

Key Properties

High thermal stability
Low dielectric constant
Excellent optical transparency
Good chemical resistance
Compatible with various dianhydrides for polyimide synthesis

Key applications of TFDB

High-Performance Polymers and Polyimides: Used as a building block for polyimides and polyimines that exhibit high thermal resistance, flexibility, and transparency. These materials are ideal for optoelectronic devices, photonics, and encapsulation of solar cells with metal-organic framework (MOF) light diffusers.
Metal-Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs): Serves as a linker in creating high-surface-area MOFs and COFs for gas storage, catalysis, and separation technologies.
Optoelectronics and Electronics: Enables UV-resistant, colorless polyimide thin films for flexible electronics, printed circuit boards, and electronic inks due to improved electrical properties and reduced electron dispersion.
Dyes, Pigments, and Other Materials: Incorporated into high-performance dyes and pigments requiring thermal and lightfastness, as well as advanced copolymers for specialized coatings.

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