865448-72-2

Basic information

• Product Name: N,N,N',N'-Tetra(4-formylphenyl)benzidin
• Synonyms: N,N,N',N'-Tetra(4-formylphenyl)benzidin;4,4,,4,,,4,,,-([1,1,-biphenyl]-4,4,-diylbis(azanetriyl))tetrabenzaldehyde;Benzaldehyde,4,4',4'',4'''-([1,1'-biphenyl]-4,4'-diyldinitrilo)tetrakis
• CAS NO: 865448-72-2
• Molecular Formula: C₄₀H₂₈N₂O₄
• Molecular Weight: 600.66132
• Mol File: 865448-72-2.mol
• Article Data: 4

Chemical Properties

• Melting Point: 181-182 °C(Solv: ethyl acetate (141-78-6); ligroine (8032-32-4))
• Boiling Point: 817.5±65.0 °C(Predicted)
• Appearance: /
• Density: 1.295±0.06 g/cm3(Predicted)
• Storage Temp.: Inert atmosphere,Room Temperature
• PKA: -8.02±0.60(Predicted)
• CAS DataBase Reference: N,N,N',N'-Tetra(4-formylphenyl)benzidin(CAS DataBase Reference)
• NIST Chemistry Reference: N,N,N',N'-Tetra(4-formylphenyl)benzidin(865448-72-2)
• EPA Substance Registry System: N,N,N',N'-Tetra(4-formylphenyl)benzidin(865448-72-2)

Safety Data

• Hazardous Substances Data: 865448-72-2(Hazardous Substances Data)

Usage

General Description

N,N,N',N'-Tetra(4-formylphenyl)benzidin is a chemical compound that consists of a benzidine core with four para-formylphenyl substituents. It is commonly used as a precursor for the synthesis of various organic compounds, including dyes, pharmaceuticals, and materials. N,N,N',N'-Tetra(4-formylphenyl)benzidin is known for its ability to form strong bonds with other organic molecules and exhibit unique optical and electronic properties. However, it is also classified as a potential carcinogen and has been identified as a toxic substance that can cause harm to human health and the environment if not handled and disposed of properly. Due to these risks, it is important to exercise caution and follow safety guidelines when working with N,N,N',N'-Tetra(4-formylphenyl)benzidin.

Upstream product

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Relevant articles and documents

Synthesis of triphenylamine (TPA) dimers and applications in cell imaging

A variety of triphenylamine (TPA) are shown to undergo C–C bond formation using quinone-based chloranil/H+ reagent as the metal free oxidative system to afford triphenylamine dimers very conveniently. Then, TPA dimers have been further converte

Solution-processed thermally stable amorphous films of small molecular hole injection/transport bi-functional materials and their application in high efficiency OLEDs

A series of novel triphenylamine-based small molecular hole transport materials (HTMs) are reported for solution processed organic light-emitting devices (OLEDs). The character of this series of HTMs, denoted as TPD(BTPA)n (n = 1, 2, 4), is connecting the flexible moieties of butadiene bridged triphenylamine (BTPA) to N,N,N′,N′-tetraphenyl-[1,1′-biphenyl]-4,4′-diamine (TPD). The glass transition temperature and crystallization temperature (Tg and Tc) showed a proportional relationship with the number of BTPA moieties. The Tg value of TPD(BTPA)4 can be up to 125.5 °C, which is higher than most of the reported small molecular HTMs (Tg: 54-116 °C). The TPD(BTPA)4 spincoated film showed an outstanding thermal stability which remained amorphous even when annealed at 110 °C, for 48 h. This indicated that the breaking of the planar molecular structure with BTPA moieties can suppress intermolecular stacking. The solution processed OLEDs with 8-hydroxyquinoline aluminum (Alq3) as emission and electron transport layers showed high stability at high operation current (>400 mA cm-2). The OLED with TPD(BTPA)4 achieved a maximum current efficiency of 5.83 cd A-1 (at the operation current density > 400 mA cm-2), which is higher than the maximum current efficiency of most evaporation and solution processed OLEDs in identical structures.