What is a Phenylacetaldehyde (C₈H₈O) ?

Phenylacetaldehyde (C₈H₈O) is an aromatic aldehyde consisting of a benzene ring (phenyl group) connected via a methylene bridge (–CH₂–) to an aldehyde group (–CHO). It appears as a colorless to pale yellow liquid at room temperature and has a sweet, floral fragrance. It naturally occurs in small quantities in flowers like roses and hyacinths. Due to its pleasant aroma, phenylacetaldehyde is used in the fragrance and flavor industry, commonly found in perfumes, cosmetics, and air fresheners. In the field of organic synthesis, it serves as an important intermediate for the production of pharmaceuticals, agrochemicals, and dyes.

Upon oxidation, it converts into phenylacetic acid, and upon reduction, it becomes phenylethanol. The reactive aldehyde group makes phenylacetaldehyde a versatile compound in chemical transformations.

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