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General information

  • Name: 4CzTPN
  • Full name: 2,3,5,6-Tetrakis(carbazol-9-yl)-1,4-dicyanobenzene
  • CAS number: 1416881-53-2
  • Chemical formula: C56H32N6
  • Molecular weight: 788.27 g/mol
  • Absorption: λmax = 328 nm, 344 nm, 485 nm in Toluene
  • Photoluminescence: λmax = 538 nm in Toluene
  • HOMO/LUMO: HOMO = 5.7 eV, LUMO = 2.8 eV
  • Synonyms: -
  • Classification: Organic light-emitting diodes, Emmiting layer materials (EML), TADF materials, Green fluorescent dopant materials
  • Purity: Sublimed: >99% (1H NMR)
  • Melting point: 382 °C
  • Appearance: Orange powder/crystals

4CzTPN >99% – Premier Green Fluorescent Dopant for Advanced OLEDs

At Noctiluca, we proudly present 4CzTPN >99%, a critical material designed to revolutionize OLED (organic light-emitting diode) technology. Known as 2,3,5,6-Tetrakis(carbazol-9-yl)-1,4-dicyanobenzene, this compound, identified by CAS number 1416881-53-2 and molecular formula C56H32N6, meets the highest standards of both research and industrial applications. With a superior purity exceeding 99% (1H NMR), 4CzTPN is engineered to ensure peak performance in sophisticated OLED systems. Our unwavering commitment to quality ensures that 4CzTPN enhances the efficiency and durability of OLED devices, making it an indispensable component for cutting-edge electronic advancements.

The Molecular Structure and Properties of 4CzTPN

4CzTPN, also known by its full name 2,3,5,6-Tetrakis(carbazol-9-yl)-1,4-dicyanobenzene, is distinguished by its remarkable photophysical properties. This orange powder/crystalline compound exhibits absorption maxima at λmax = 328 nm, 344 nm, and 485 nm in toluene and photoluminescence at λmax = 538 nm in toluene. The molecular structure, featuring a dicyanobenzene core with four carbazole groups, provides excellent thermal stability with a melting point of 382 °C. The dicyanobenzene core contributes to the molecule’s electron-accepting properties, while the carbazole units enhance its electron-donating abilities. These features ensure efficient charge transfer and emission properties, making 4CzTPN an ideal candidate for highly efficient and stable OLEDs.

Key Features of 4CzTPN

  • Exceptional Purity and Quality: Our 4CzTPN, with a purity level of >99% as verified by 1H NMR, is produced through a precise sublimation process. This high purity ensures consistent and reliable material quality, forming the basis for superior OLED applications. The exceptional purity of 4CzTPN is essential for developing high-performance emissive and charge transport layers.
  • Advanced Applications in OLEDs: 4CzTPN is highly versatile, serving as an effective green fluorescent dopant material, emitting layer (EML) material, and TADF material. Its integration into these layers results in OLEDs with enhanced energy conversion efficiency and prolonged operational lifespan. This versatility is crucial for driving advancements in OLED technology, making 4CzTPN a preferred choice for developers aiming to push the boundaries of display technology.
  • Superior Photophysical Attributes: With absorption maxima at λmax = 328 nm, 344 nm, and 485 nm, and strong photoluminescence at λmax = 538 nm, 4CzTPN offers outstanding photophysical properties. These characteristics are essential for optimizing light emission and energy transfer in OLEDs, contributing to the development of highly efficient, next-generation display devices.
  • Robust Thermal Stability: Engineered to endure high temperatures, 4CzTPN has a melting point of 382 °C, making it suitable for various operational conditions. This thermal stability ensures the durability and reliability of OLED panels, positioning 4CzTPN as an essential material for long-lasting display technologies.
  • Versatility in Device Fabrication: 4CzTPN’s excellent solubility and processability make it suitable for diverse OLED fabrication techniques. Its adaptability ensures effective utilization in various manufacturing processes, enhancing its applicability across different OLED production methods.

The Role of 4CzTPN in Advanced OLEDs

4CzTPN >99%, chemically known as C56H32N6, plays a crucial role in the evolution of OLED technology. By facilitating the creation of efficient emissive and transport layers, this compound significantly enhances light emission and overall device performance. The integration of 4CzTPN in TADF and green fluorescent dopant formulations is vital for achieving superior energy conversion efficiencies, essential for developing next-generation display technologies. Furthermore, its application as a host material boosts the stability and durability of OLED products, making it indispensable for developers seeking to optimize OLED performance. 4CzTPN’s unique properties support a wide range of applications, driving innovation in the optoelectronics industry and contributing to the development of cutting-edge solutions.


4CzTPN >99% exemplifies Noctiluca’s commitment to delivering top-quality chemical materials, highlighting our dedication to advancing material science for sustainable and efficient OLED applications. As a leading OLED materials supplier and contract research organization (CRO), we are committed to providing our clients with superior-grade materials that drive technological and innovative progress.

Contact us today to discover how our high-purity 4CzTPN can meet your scientific and industrial needs, ensuring your projects benefit from the highest standards of quality and performance, or to inquire about bulk orders of this compound.

Any questions? Contact us!