Main Reaction: 5,7,4'-trihydroxyflavanone >> anthocyanin

Reference: PubMed ID: 12646206
Authors: Joung JY, Kasthuri GM, Park JY, Kang WJ, Kim HS, Yoon BS, Joung H, Jeon JH
Title: An overexpression of chalcone reductase of Pueraria montana var. lobata alters biosynthesis of anthocyanin and 5'-deoxyflavonoids in transgenic tobacco.
Published: 2003 Mar 28

5,7,4'-trihydroxyflavanone --> anthocyanin