3,4-Benzopyrene, also known as benzo[a]pyrene, is a polycyclic aromatic hydrocarbon (PAH) renowned for its significance in environmental chemistry and toxicology. This compound is primarily utilized in research related to carcinogenicity, as it is a well-documented environmental pollutant that can be found in tobacco smoke, grilled meats, and vehicle emissions. Its unique structure allows it to intercalate into DNA, leading to mutagenic effects, making it a critical subject of study in cancer research and risk assessment.

In industrial applications, 3,4-Benzopyrene serves as a standard reference material for analytical methods, including gas chromatography and mass spectrometry, aiding in the detection and quantification of PAHs in various matrices. Its relevance extends to environmental monitoring, where it is used to assess pollution levels and the effectiveness of remediation strategies. Researchers and industry professionals benefit from its high purity, which ensures accurate results in experimental setups and regulatory compliance.