1. Anthocyanin A glycoside derivative is a water-soluble natural pigment widely found in plants in nature, and is a colored aglycon which is obtained by hydrolysis of anthocyanins. Under normal natural conditions, free anthocyanins are rare, often with one or more glucose, rhamnose, galactose, xylose, arabinose, etc. through the glycosidic bond to form anthocyanins, glycosidic and hydroxyl groups in anthocyanidins An acid-based anthocyanidin may be formed by ester bonding with one or several molecules of an aromatic acid such as coumaric acid, ferulic acid, caffeic acid or p-hydroxybenzoic acid.

1. Ginkgo flavonoid. At present, there are more than 170 kinds of medicinal ingredients of Ginkgo biloba.

Paracetamol, the product name is Baifuning, Bilitong, Tylenol, acetaminophen and so on.

1. Phenol wastewater. Phenol has been listed as a priority pollutant in water by Chinese environmental organizations.