diphenyltype

Diphenylpyre

Diphenylpyre, also known as acid yellow 74, is an organic compound that belongs to the pyrene family of polycyclic aromatic hydrocarbons. It is a yellow solid that is insoluble in water. Diphenylpyre is a planar molecule with a rectangular shape, caused by the stacking of four six-membered ring systems.

The compound was first synthesized in the early 20th century and has since been used in various industrial applications. Due to its high thermal stability and electrical conduction, diphenylpyre is used as a laser dye and a pigment in various electron-beam lithographies.

Diphenylpyre has been detected in environmental samples, including water and soil, typically at trace levels. Exposure to high levels of diphenylpyre has not been extensively studied in humans, but it may exhibit mutagenic and carcinogenic properties in certain laboratory animals.

The international regulatory agencies have not set an acceptable daily intake (ADI) for diphenylpyre due to insufficient data. IARC has classified diphenylpyre as a non-classifiable as to its carcinogenicity to humans (Group 3).

Further studies on human exposure and potential health effects are necessary. Diphenylpyre is used in various applications, and ongoing research is being conducted to assess its impact on the environment and human health.