Biphenyl is an organic compound that crystallizes into colorless crystals. It is often recognized for its distinctively pleasant smell. Frequently found in older literature, compounds with the functional group of biphenyl minus one hydrogen may use the prefixes xenyl or diphenyl.

Biphenyl finds application in various industrial processes, such as heat transfer fluids and as a precursor in the production of certain chemicals. Its unique chemical structure and stability make it suitable for a range of applications, including use in electrical transformers and as a heat transfer medium in liquid-phase heat exchangers.

In older literature, compounds containing the functional group of biphenyl with one less hydrogen atom may use the prefixes “xenyl” or “diphenyl.” These terms help distinguish specific chemical structures and are part of historical nomenclature.

Biphenyl is generally considered safe for common use. However, as with any chemical substance, it is important to follow safety guidelines and use proper handling procedures. Biphenyl’s pleasant smell also contributes to its ease of detection, allowing for prompt identification in case of leaks or spills.

Biphenyl is known for its distinctively pleasant smell. This aromatic characteristic, along with its stability, has led to its use in certain applications where its odor may be desirable, such as in the production of perfumes and fragrances.