Perylene

Updated: 2026-09-15

Overview

Perylene is a polycyclic aromatic hydrocarbon (PAH) consisting of five fused benzene rings. It is known for its strong fluorescence and stability, making it valuable in various high-tech applications. The compound is derived from coal tar or synthesized through organic reactions. Its unique electronic properties have led to its widespread use in organic electronics and photonics. First isolated in the early 20th century, perylene has since become a cornerstone in the development of advanced materials. Its ability to absorb and emit light efficiently makes it ideal for use in dyes, sensors, and electronic devices. The compound's robustness under UV light further enhances its utility in long-lasting applications.

Physical and Chemical Properties

Perylene appears as a yellow to dark green crystalline powder with a density of 1.35 g/cm³. It has a melting point of 273-275 °C and sublimes at around 500 °C. The compound is insoluble in water but dissolves readily in organic solvents such as benzene, toluene, and dichloromethane. Its molecular structure contributes to high photostability and fluorescence quantum yield. Perylene exhibits strong absorption in the visible spectrum, with emission peaks in the green to red region. These properties are tunable through chemical modifications, enabling tailored applications in optoelectronics and imaging.

Main Applications

Perylene's primary use is as a fluorescent dye in industrial and research settings. Its bright emission and stability make it suitable for labeling and detection in biological assays. In organic electronics, perylene derivatives serve as electron transport materials in photovoltaic cells and OLEDs. The compound is also employed in laser dyes due to its narrow emission bands and high efficiency. Additionally, perylene-based pigments are used in high-performance coatings and inks, offering durability and vibrant colors. Its versatility continues to drive innovation in material science and nanotechnology.

Safety and Storage

Perylene should be handled with care to avoid inhalation or skin contact, as it may cause irritation. Personal protective equipment (PPE), including gloves and goggles, is recommended when working with the compound. Adequate ventilation is essential to prevent the accumulation of dust or vapors. Store perylene in a cool, dry place, protected from light and oxidizing agents. Keep containers tightly sealed to minimize exposure to air and moisture. In case of spills, collect the material using appropriate methods and dispose of it according to local regulations.

B2B Procurement Guide

When procuring perylene, prioritize suppliers with certifications such as ISO or GMP to ensure quality and consistency. Specify the required purity level, typically ranging from 95% to 99.9%, based on your application. Bulk purchases may offer cost savings, but verify storage and handling capabilities. Request material safety data sheets (MSDS) and certificates of analysis (CoA) to confirm compliance with safety and performance standards. Consider lead times and supplier reliability, especially for time-sensitive projects. Comparing multiple quotes can help secure competitive pricing without compromising quality.