ChemicalBook > CAS DataBase List > 2,2'-Bis(trifluoromethyl)benzidine

2,2'-Bis(trifluoromethyl)benzidine

Product Name
2,2'-Bis(trifluoromethyl)benzidine
CAS No.
341-58-2
Chemical Name
2,2'-Bis(trifluoromethyl)benzidine
Synonyms
TFMB;TFDB;ABL-21;22TFMB;TFDB(TFMB);TFMB/ TFDB;2,2'-Bis(trifluorome;2,2'-Bis(trifluoromethyl;2,2'-bis(trifluoromethyl);2,2'-DI(TRIFLUOROMETHYL)BENZIDINE
CBNumber
CB2120988
Molecular Formula
C14H10F6N2
Formula Weight
320.23
MOL File
341-58-2.mol
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2,2'-Bis(trifluoromethyl)benzidine Property

Melting point:
183 °C
Boiling point:
376.9±42.0 °C(Predicted)
Density 
1.415±0.06 g/cm3(Predicted)
storage temp. 
2-8°C(protect from light)
solubility 
soluble in Methanol
form 
powder to crystal
pka
3.23±0.10(Predicted)
color 
White to Light yellow to Light orange
InChI
InChI=1S/C14H10F6N2/c15-13(16,17)11-5-7(21)1-3-9(11)10-4-2-8(22)6-12(10)14(18,19)20/h1-6H,21-22H2
InChIKey
NVKGJHAQGWCWDI-UHFFFAOYSA-N
SMILES
C1(C2=CC=C(N)C=C2C(F)(F)F)=CC=C(N)C=C1C(F)(F)F
CAS DataBase Reference
341-58-2(CAS DataBase Reference)
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Safety

Hazard Codes 
T,Xi
Risk Statements 
22-45-50/53-36-25-36/37/38
Safety Statements 
22-36/37/39-45-26-37
RIDADR 
2811
Hazard Note 
Toxic
HazardClass 
IRRITANT-HARMFUL
HS Code 
29215900
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TCI Chemical
Product number
B1711
Product name
2,2'-Bis(trifluoromethyl)benzidine
Purity
>98.0%(GC)(T)
Packaging
1g
Price
$41
Updated
2025/07/31
TCI Chemical
Product number
B1711
Product name
2,2'-Bis(trifluoromethyl)benzidine
Purity
>98.0%(GC)(T)
Packaging
5g
Price
$151
Updated
2025/07/31
TCI Chemical
Product number
B1711
Product name
2,2'-Bis(trifluoromethyl)benzidine
Purity
>98.0%(GC)(T)
Packaging
25g
Price
$454
Updated
2025/07/31
Oakwood
Product number
009043
Product name
2,2'-Bis(trifluoromethyl)benzidine
Packaging
250mg
Price
$9
Updated
2021/12/16
SynQuest Laboratories
Product number
3830-3-22
Product name
2,2'-Bis(trifluoromethyl)benzidine
Purity
97%
Packaging
2g
Price
$10
Updated
2021/12/16
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2,2'-Bis(trifluoromethyl)benzidine Chemical Properties,Usage,Production

Description

2,2'-Bis(trifluoromethyl)benzidine (TFMB) is a fluorinated benzidine derivative with two trifluoromethyl substituents at the 2- and 2'-positions. 2,2'-Bis(trifluoromethyl)benzidine (TFMB) is a rigid and aromatic polyimide used in the synthesis of metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) of high specific surface area.TFMB is also synthesised as UV-resistant and colourless polyimide thin films for optoelectronic applications. TFMB is also used to synthesise UV resistant and colourless polyimide films for optoelectronic applications. The two fluoromethyl groups have a strong electron-withdrawal effect, which reduces the electron dispersion in the π-orbitals of the fully conjugated polymer backbone. This effect results in a much higher transparency of the polyimide film compared to polyimide films containing methyl substituents. This polyimide can be used for the encapsulation of solar cells with MOFs cluster light diffusers.

Chemical Properties

2,2'-Bis(trifluoromethyl)benzidine is rigid and aromatic, the two fluoromethyl groups have strong electron withdrawing effect, reducing the electron delocalization of the π orbital on the fully conjugated polymer backbone.

Uses

2,2'-Bis(trifluoromethyl)benzidine is used for producing a high strength flexible transparent polyimide material.

Hazard

2,2'-Bis(trifluoromethyl)benzidine is harmful if swallowed, in contact with skin or if inhaled.

Synthesis

This 2,2′-bis(trifluoromethyl)-4,4′-dinitrobiphenyl crystal of 42.5 g, toluene of 127.5 g and 5% Pd/C (AER-TYPE: 50% water contained product) of 1.8 g manufactured by N.E. CHEMCAT Corp. were fed in an autoclave made of stainless steel, after the system was replaced sufficiently with hydrogen, pressured with hydrogen for a reaction pressure to be 1 MPa and reaction was carried out at a reaction temperate of 60 °C for 6 hours. After reaction, catalyst was filtered away, toluene in this reaction liquid was distilled away under reduced pressure, concentrated and crystallized, 2,2′-bis(trifluoromethyl)-4,4′-diaminobiphenyl of 28.5 g (purity converted) was obtained by solid-liquid separation.

References

[1] Patent: CN105541637, 2016, A. Location in patent: Paragraph 0017; 0018
[2] Journal of the Chemical Society, 1951, p. 3459,3463
[3] Journal of the Chemical Society, 1954, p. 1071,1074
[4] Patent: EP2100874, 2009, A1. Location in patent: Page/Page column 7

2,2'-Bis(trifluoromethyl)benzidine Preparation Products And Raw materials

Raw materials

Preparation Products

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2,2'-Bis(trifluoromethyl)benzidine Suppliers

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View Lastest Price from 2,2'-Bis(trifluoromethyl)benzidine manufacturers

Shaanxi Dideu New Materials Co. Ltd
Product
2,2'-Bis(trifluoromethyl)benzidine 341-58-2
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
98
Supply Ability
10000KGS
Release date
2025-11-12
CHINATECH(TIANJIN) CHEMICAL CO.,LTD.
Product
2,2'-bis(trifluoromethyl)benzidine (TFDB/TFMB) 341-58-2
Price
US $0.00/kg
Min. Order
1kg
Purity
≥99.9%HPLC
Supply Ability
200MT
Release date
2025-10-24
WUHAN FORTUNA CHEMICAL CO., LTD
Product
2,2'-Bis(trifluoromethyl)benzidine 341-58-2
Price
US $0.00/KG
Min. Order
1KG
Purity
98%min
Supply Ability
30tons/month
Release date
2023-02-24

341-58-2, 2,2'-Bis(trifluoromethyl)benzidineRelated Search:

N,N-Dimethyl-1,4-phenylenediamine Benzidine 2-(Trifluoromethyl)benzoic acid 4,4'-Dimethylbiphenyl 3-Aminobenzotrifluoride 4,4'-Ethylenedianiline Bifendate Lithium bis(trimethylsilyl)amide 3-(Trifluoromethyl)benzaldehyde Dinitramine Trifluoromethanesulfonic acid Tris(hydroxymethyl)aminomethane m-Tolidine 4-Methyl-3-(trifluoromethyl)aniline Trifluoromethyl 3,3'-BIS(TRIFLUOROMETHYL)BENZIDINE,3,3'-Bis(trifluoromethyl)benzidine97% 2'-TRIFLUOROMETHYL-BIPHENYL-4-YLAMINE 2,2'-Bis(trifluoromethyl)benzidine

  • 2,2'-Bis(trifluoroMethyl)-4,4'-diaMino biphenyl(TFMB/TFDB)
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  • 2,2'-Bis(trifluoromethyl)-[1,1'-biphenyl]-4,4'-diamine(TFDB/TFMB)
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  • 2,2'-Bis(trifluoromethyl)benzidine 97%
  • 2,2'-Bis(trifluoromethyl)benzidine97%
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  • 2,2'-Bis(trifluoromethyl)benzidine ISO 9001：2015 REACH
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  • 2,2'-BIS(TRIFLUOROMETHYL)BENZIDINE 2,2'-bis(trifluoromethyl)benzidine (TFMB)/(TFDB)
  • 2,2'-bis(trifluoromethyl)benzidine (TFDB/TFMB)
  • TFDB 2,2'-Bis(trifluoromethyl)-[1,1'-biphenyl]-4,4'-diamine
  • TFMB/ TFDB
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  • 2,2'-BIS(TRIFLUOROMETHYL)BENZIDINE 2,2'-bis(trifluoromethyl)benzidine (TFMB)/(TFDB)
  • 2,2'-Bis(trifluoromethyl)benzidine
  • 2,2- BistrifuoromethyI)- 4.,4'-diamino bipheny (TFDB)
  • 2,2 '- di (trifluoromethyl) diaminobenzene (TFMB)
  • 2,2'-bis(trifluoromethyl)-[1,1'-biphenyl]-4,4'-diamine（TFMB）
  • 2,2'-Bis(trifluoromethyl)benzidine
  • 341-58-2
  • C14H10F6N2
  • Biphenyls (for High-Performance Polymer Research)
  • Reagent for High-Performance Polymer Research
  • Biphenyls (for High-Performance Polymer Research)
  • Functional Materials
  • Reagent for High-Performance Polymer Research
  • fine chemicals, specialty chemicals, intermediates, electronic chemical, organic synthesis
  • fine chemicals, specialty chemicals, intermediates, electronic chemical, organic synthesis, functional materials
  • 341-58-2