Gallocatechol Explained

Gallocatechol or gallocatechin (GC) is a flavan-3-ol, a type of chemical compound including catechin, with the gallate residue being in an isomeric trans position.

This compound possesses two epimers. The most common, (+)-gallocatechin (GC), CAS number 970-73-0, is found notably in green tea. The other enantiomer is called (-)-gallocatechin or ent-gallocatechin. It was first isolated from green tea by Michiyo Tsujimura in 1934.^[1]

Epigallocatechin is another type of catechin, with the gallate residue being in an isomeric cis position. It can be found in St John's wort.^[2]

See also

• Epigallocatechin gallate
• Prodelphinidin
• List of phytochemicals in food

External links

• Epigallocatechin on the Sigma-Aldrich website
• Gallocatechin on the Sigma-Aldrich website

Notes and References

1. Web site: Michiyo Tsujimura (1888–1969). Ochanomizu University. 10 November 2015. 21 November 2015. https://web.archive.org/web/20151121161332/http://archives.cf.ocha.ac.jp/en/researcher/tsujimura_michiyo.html. dead.
2. 10.1016/j.chroma.2008.12.056. 19150073. 2777726. Separation of epigallocatechin and flavonoids from Hypericum perforatum L. By high-speed counter-current chromatography and preparative high-performance liquid chromatography. Journal of Chromatography A. 1216. 19. 4313–4318. 2009. Wei. Yun. Xie. Qianqian. Dong. Wanting. Ito. Yoichiro.