Phenylacetaldehyde is an aromatic compound with a strong sweet and floral aroma (similar to hyacinth, jasmine and rose), which is mainly used in the fragrance and fragrance industry, and is widely used in the formulation of perfumes, cosmetics, food (such as sweets, beverages) and tobacco flavours, giving a sweet floral base. In agriculture, it can be used as an insect attractant, used to trap pests such as cotton bollworms and sugar beet moths or to enhance pollination efficiency. In addition, it is an important intermediate in organic synthesis for the preparation of phenylethanol, pharmaceuticals and other fine chemicals, and is used in scientific research to study insect behaviour and biotransformation processes.