• Name

  N,N,N',N'-Tetraphenylbenzidine

• EINECS 239-599-0
• CAS No. 15546-43-7
• Article Data48
• CAS DataBase
• Density 1.171 g/cm³
• Solubility
• Melting Point 230-234 °C
• Formula C₃₆H₂₈N₂
• Boiling Point 649.7 °C at 760 mmHg
• Molecular Weight 488.632
• Flash Point 291.2 °C
• Transport Information
• Appearance white crystalline powder
• Safety 26-36
• Risk Codes 36/37/38
• Molecular Structure
• Hazard Symbols Xi
• 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;
• 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

Conditions	Yield
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%

N,N,N',N'-Tetraphenylbenzidine Chemical Properties

N,N,N',N'-Tetraphenylbenzidine Safety Profile

N,N,N',N'-Tetraphenylbenzidine Specification