Carbazole

Product Overview

Carbazole (CAS 86-74-8), molecular formula C12H9N, molecular weight 167.207, is a nitrogen-containing tricyclic aromatic heterocyclic compound consisting of two benzene rings fused to a pyrrole ring. Carbazole and its derivatives exhibit excellent electron-donating properties, remarkable thermal stability, and superior photophysical characteristics, making it a fundamental building block in organic electronic materials and medicinal chemistry.

Key Applications

• Organic Optoelectronic Materials — Carbazole is a core structural motif in OLED (organic light-emitting diode) materials, widely used in blue emissive layers, hole-transport layers, and host material design. Its derivatives such as PVK (polyvinylcarbazole) are classic hole-transport materials.
• Organic Field-Effect Transistors (OFET) — Carbazole-based polymers and small-molecule materials are employed in high-performance organic semiconductor devices, featuring high charge carrier mobility and excellent air stability.
• Photovoltaic Cell Materials — In organic photovoltaics (OPV) and perovskite solar cells, carbazole derivatives serve as hole-transport layers and interface modification materials, effectively enhancing device efficiency and stability.
• Pharmaceutical Intermediates — The carbazole scaffold is present in numerous bioactive molecules and is used in the synthesis of antitumor, antibacterial, antiviral, anti-inflammatory, and neurological drugs.
• Dyes and Pigments — Carbazole is a key raw material for synthesizing industrial dyes and fluorescent whitening agents, extensively used in textile, papermaking, and plastics industries.
• Fluorescent Probes and Sensors — Carbazole derivatives exhibit strong fluorescence, enabling applications in metal ion detection, pH sensing, and biological labeling.

Advantages

• High purity (99% minimum), meeting electronic-grade material synthesis requirements
• Excellent electron-donating capability and hole-transport performance
• Outstanding thermal and chemical stability
• Highly tunable structure through N-position and C-position chemical modifications
• Broad applicability across OLED, OFET, photovoltaics, pharmaceuticals, and sensing