Riboflavin undergoes photodecomposition with resulting production of free radical containing products.

核黄素，经光解而成含有自由基的产物。

FMN (flavin mononucleotide) A derivative of riboflavin that is a coenzyme in electron-transfer reactions.

黄素单核苷酸（FMN）：核黄素的衍物，在电子传递应中是一种辅酶，为多种脱氢酶的辅助因子。