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Name	2,2'-Bis(trifluoromethyl)benzidine	EINECS	671-105-2
CAS No.	341-58-2	Density	1.415 g/cm³
PSA	52.04000	LogP	5.71800
Solubility	N/A	Melting Point	183 °C
Formula	C₁₄H₁₀F₆N₂	Boiling Point	376.9 °C at 760 mmHg
Molecular Weight	320.237	Flash Point	171.4 °C
Transport Information	UN 2811	Appearance	white crystalline powder
Safety	22-36/37/39-45	Risk Codes	22-45-50/53
Molecular Structure		Hazard Symbols	T, Xi
Synonyms	m-Tolidine,a,a,a,a',a',a'-hexafluoro- (6CI,8CI);2,2'-Bis(trifluoromethyl)-4,4'-diaminobiphenyl;4,4'-Diamino-2,2'-bis(trifluoromethyl)biphenyl;TFMB;[1,1'-Biphenyl]-4,4'-diamine,2,2'-bis(trifluoromethyl)-;	Article Data	20

2,2'-Bis(trifluoromethyl)benzidine Synthetic route

: 641-98-5
2,2'-bis-(trifluoromethyl)-4,4'-dinitro-1,1'-biphenyl

: 341-58-2
2,2'-bis(trifluoromethyl)benzidine

Conditions

Conditions	Yield
With ammonium formate; zinc In methanol at 50℃; Temperature; Concentration;	96.83%
With palladium 10% on activated carbon; hydrogen In ethanol at 80℃; under 15001.5 Torr; Catalytic behavior; Pressure; Temperature;	92%
With hydrogenchloride; tin
With hydrogen; palladium on activated charcoal In toluene at 60℃; under 7500.75 Torr; for 6h; Autoclave;

: 351-19-9
1,2-bis(3-(trifluoromethyl)phenyl)hydrazine

: 341-58-2
2,2'-bis(trifluoromethyl)benzidine

Conditions

Conditions	Yield
With sulfuric acid In water; toluene for 5h; Product distribution / selectivity;	95.1%
With hydrogenchloride In water; toluene at 25℃; for 3h; Product distribution / selectivity;	95%
With sulfuric acid In water at -5 - 75℃; under 2280.15 - 3800.26 Torr; for 2h; Temperature; Inert atmosphere;	60%

: 588-00-1
1,2-bis((3-trifluoromethyl)phenyl)diazene

A: 341-58-2
2,2'-bis(trifluoromethyl)benzidine

B: 440-66-4
4,2'-bis-trifluoromethyl-biphenyl-2,4'-diyldiamine

Conditions

Conditions	Yield
With sodium amalgam; ethanol; sulfuric acid

: 98-46-4
3-trifluoromethylnitrobenzene

: 341-58-2
2,2'-bis(trifluoromethyl)benzidine

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: lead; sodium acetate; aqueous ethanol 2: sodium-amalgam; aqueous ethanol; H2SO4 View Scheme

: 344-62-7
N-[2-(trifluoromethyl)phenyl]acetamide

: 341-58-2
2,2'-bis(trifluoromethyl)benzidine

Conditions

Conditions	Yield
Multi-step reaction with 5 steps 1: H2SO4; HNO3 2: aq.-ethanolic NaOH 3: acetic acid; sulfuric acid; aqueous sodium nitrite solution; aqueous potassium iodide solution 4: copper-powder / 300 °C 5: tin; aq.-ethanolic HCl View Scheme

: 121-01-7
4-nitro-2-trifluoromethyl-aniline

: 341-58-2
2,2'-bis(trifluoromethyl)benzidine

Conditions

Conditions	Yield
Multi-step reaction with 3 steps 1: acetic acid; sulfuric acid; aqueous sodium nitrite solution; aqueous potassium iodide solution 2: copper-powder / 300 °C 3: tin; aq.-ethanolic HCl View Scheme

: 395-68-6
N-(4-nitro-2-(trifluoromethyl)phenyl)acetamide

: 341-58-2
2,2'-bis(trifluoromethyl)benzidine

Conditions

Conditions	Yield
Multi-step reaction with 4 steps 1: aq.-ethanolic NaOH 2: acetic acid; sulfuric acid; aqueous sodium nitrite solution; aqueous potassium iodide solution 3: copper-powder / 300 °C 4: tin; aq.-ethanolic HCl View Scheme

: 400-75-9
1-iodo-4-nitro-2-(trifluoromethyl)benzene

: 341-58-2
2,2'-bis(trifluoromethyl)benzidine

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: copper-powder / 300 °C 2: tin; aq.-ethanolic HCl View Scheme

3,3'-bis (trifluoromethyl)-4,4'-hydrazobenzene: 3,3'-bis (trifluoromethyl)-4,4'-hydrazobenzene

: 98-46-4
3-trifluoromethylnitrobenzene

: 7440-66-6
zinc

: 341-58-2
2,2'-bis(trifluoromethyl)benzidine

Conditions

Conditions	Yield
With sodium hydroxide; sulfuric acid; ammonium chloride; ammonia In methanol; acetone; toluene

: C22H18F6N2O6

: 341-58-2
2,2'-bis(trifluoromethyl)benzidine

Conditions

Conditions	Yield
With water; sodium hydroxide In dichloromethane for 4h; Solvent; Reflux;	115 g

2,2'-Bis(trifluoromethyl)benzidine Chemical Properties

The Molecular Structure of 2,2'-Bis-(trifluormethyl) benzidine (CAS NO.341-58-2):

Molecular Formula: C₁₄H₁₀F₆N₂
Molecular Weight: 320.233019 g/mol
IUPAC: 4-[4-amino-2-(trifluoromethyl)phenyl]-3-(trifluoromethyl)aniline
Product Categories: Biphenyls (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer ResearchNominal Mass: 320 Da
Average Mass: 320.233 Da
Monoisotopic Mass: 320.074818 Da
Nominal Mass: 320 Da
Average Mass: 320.233 Da
Monoisotopic Mass: 320.074818 Da
Index of Refraction: 1.524
Molar Refractivity: 69.27 cm³
Molar Volume: 226.2 cm³
Surface Tension: 34 dyne/cm
Density: 1.415 g/cm³
Flash Point: 171.4 °C
Enthalpy of Vaporization: 62.46 kJ/mol
Boiling Point: 376.9 °C at 760 mmHg
Vapour Pressure: 7.02E-06 mmHg at 25°C

2,2'-Bis(trifluoromethyl)benzidine Safety Profile

Hazard Codes: Toxic T Irritant Xi
Risk Statements: 22-45-50/53
R22:Harmful if swallowed
R45:May cause cancer
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Safety Statements: 22-36/37/39-45
S22:Do not breathe dust
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: 2811
Hazard Note: Toxic
HazardClass: IRRITANT-HARMFUL

2,2'-Bis(trifluoromethyl)benzidine Specification

2,2'-Bis-(trifluormethyl) benzidine (CAS NO.341-58-2) is also called as 4,4'-diamino-2,2'-bis(trifluoromethyl)biphenyl ; 22Tfmb ; 2,2'-Di(trifluoromethyl)benzidine ; 2,2'-Bis(trifluoromethyl)-4,4'-diamino biphenyl ; 2,2'-Bis(trifluoromethyl)benzidine 97% .

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