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15546-43-7

Basic Information
CAS No.: 15546-43-7
Name: [1,1'-Biphenyl]-4,4'-diamine,N4,N4,N4',N4'-tetraphenyl-
Molecular Structure:
Molecular Structure of 15546-43-7 ([1,1'-Biphenyl]-4,4'-diamine,N4,N4,N4',N4'-tetraphenyl-)
Formula: C36H28N2
Molecular Weight: 488.62
Synonyms: Benzidine,N,N,N',N'-tetraphenyl- (6CI,7CI,8CI);[1,1'-Biphenyl]-4,4'-diamine,N,N,N',N'-tetraphenyl- (9CI);N,N,N',N'-Tetraphenyl-[1,1'-biphenyl]-4,4'-diamine;
EINECS: 239-599-0
Density: 1.171 g/cm3
Melting Point: 230-234 °C
Boiling Point: 649.7 °C at 760 mmHg
Flash Point: 291.2 °C
Solubility:
Appearance: white crystalline powder
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-36
Transport Information:
PSA: 68.25000
LogP: 4.27640
Synthetic route
3001-15-8

4,4'-diiodobiphenyl

122-39-4

diphenylamine

15546-43-7

N,N,N',N'-tetraphenyl-4,4'-diaminobiphenyl

Conditions
ConditionsYield
Stage #1: diphenylamine With butyl magnesium bromide In 2-methyltetrahydrofuran at 20℃; for 3h;
Stage #2: 4,4'-diiodobiphenyl In 2-methyltetrahydrofuran; 1,3,5-trimethyl-benzene at 185℃; for 72h;
89%
With potassium tert-butylate; 1,2-bis(2,6-diisopropylphenylimino)ethane; copper(l) iodide In toluene at 120℃; for 20h;85%
With 18-crown-6 ether; copper; potassium carbonate In N,N-dimethyl-formamide Ullmann reaction;83.5%
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Chemistry

The Molecular Structure of (1,1'-Biphenyl)-4,4'-diamine, N4,N4,N4',N4'-tetraphenyl- (CAS NO.15546-43-7):

Molecular Formula: C36H28N2
Molecular Weight: 488.620920 g/mol
IUPAC: N,N-diphenyl-4-[4-(N-phenylanilino)phenyl]aniline
Product Categories: electronic;Electronic Chemicals;Electroluminescence;Functional Materials
Nominal Mass: 488 Da
Average Mass: 488.6209 Da
Monoisotopic Mass: 488.225249 Da 
Index of Refraction: 1.685
Molar Refractivity: 158.53 cm3
Molar Volume: 417 cm3
Surface Tension: 52.4 dyne/cm
Density: 1.171 g/cm3
Flash Point: 291.2 °C
Enthalpy of Vaporization: 95.77 kJ/mol
Boiling Point: 649.7 °C at 760 mmHg
Vapour Pressure: 9.18E-17 mmHg at 25°C 
InChI
InChI=1/C36H28N2/c1-5-13-31(14-6-1)37(32-15-7-2-8-16-32)35-25-21-29(22-26-35)30-23-27-36(28-24-30)38(33-17-9-3-10-18-33)34-19-11-4-12-20-34/h1-28H
Download | View Full InChI
Smiles
N(c1ccc(c2ccc(N(c3ccccc3)c3ccccc3)cc2)cc1)(c1ccccc1)c1ccccc1

Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36:Wear suitable protective clothing
WGK Germany: 3

Specification

 (1,1'-Biphenyl)-4,4'-diamine, N4,N4,N4',N4'-tetraphenyl- (CAS NO.15546-43-7) is also called asTetraphenylbenzidine ; EINECS 239-599-0 ; N,N,N1,N1-Tetraphenylbenzidine ; (1,1'-Biphenyl)-4,4'-diamine, N,N,N',N'-tetraphenyl- ; N,N,N',N'-Tetraphenyl(1,1'-biphenyl)-4,4'-diamine .