Synthetic flavor industry has become an important part of the fine organic chemical industry. Currently, there are more than 5,000 synthetic flavors in the world, with more than 400 commonly used products. Synthetic fragrance industry has become an important part of the fine organic chemical industry.
Synthetic fragrances are classified according to their chemical structure or functional groups, including hydrocarbons, alcohols, acids, esters, lactones, aldehydes, ketones, phenols, ethers, acetals, ketones, fumaric acid groups, macrocyclic, polycyclic, heterocyclic (pyrazine, pyridine, furanothiazole, etc.), sulfides, halides, etc.