Nicotine, also known as nicotine, comes from tobacco. The scientific name of this plant is Nicotiana tabacum.
Nicotine is a natural liquid alkaloid that is colorless, volatile, and turns brown when exposed to air and has a tobacco smell. It is extremely fat-soluble and can be absorbed by the skin.
In 1828, German chemists Posselt and Reimann extracted nicotine from tobacco leaves for the first time.
In 1843, Melsens determined the chemical formula of nicotine.
In 1893, Adolf Pinner discovered the structure of nicotine.
In 1904, nicotine was synthesized by A. Pictet and Crepieux.
Continuing to modern times, nicotine extraction can achieve ultra-high purity.