Catechin is a type of flavonoid that is commonly found in tea, especially green tea. It is known for its antioxidant properties and is thought to have a range of health benefits, including reducing inflammation and aiding in weight loss. However, there are a number of different synonyms for catechin, including epicatechin, catechin gallate, epicatechin gallate, and gallocatechin. These compounds are all part of the same family of flavonoids and are similar in structure and function. They are found in a variety of foods, including fruits, vegetables, and certain types of wine, and can also be taken as supplements for their health benefits.