2-Phenylpyridine is an important aromatic heterocyclic building block widely used in organic synthesis, pharmaceutical intermediates, organic optoelectronic materials and coordination chemistry. It is commonly employed as a key ligand for synthesizing cyclometalated iridium, platinum and ruthenium complexes, which are core raw materials for OLED luminescent materials and organic photoelectric devices. In pharmaceutical research, it serves as a parent skeleton for the synthesis of central nervous system drugs, antibacterial agents, anti-inflammatory and antitumor intermediates, participating in various substitution, coupling and cyclization reactions to construct complex nitrogen-containing heterocyclic molecules. It is also used as a raw material for preparing chiral catalysts, chelating agents and chemical analytical reagents, as well as a standard reference substance for chromatographic analysis and organic synthetic process development.

This compound is a common aromatic heterocyclic chemical with mild irritant properties. Direct skin contact may cause slight redness, dryness and itching, especially for people with sensitive skin. Eye contact will induce obvious stinging, tearing and conjunctival irritation, requiring immediate flushing with plenty of clean water. Inhalation of dust or volatile vapor can irritate respiratory mucosa, leading to throat dryness, cough and slight chest discomfort. Accidental ingestion may cause mild gastrointestinal nausea, abdominal distension and discomfort. During handling, wear chemical-resistant gloves, safety goggles and dust mask, and operate in a well-ventilated fume hood. Store in sealed, dry, cool and dark place, keep away from strong oxidants, strong acids and heat sources. Waste solid and liquid residues shall be disposed of in accordance with hazardous chemical regulations; random discharge into water and soil is strictly prohibited to prevent environmental pollution.