vitamin B2
vitamin b2
Any member of a group of vitamers that belong to the chemical structural class called flavins that exhibit biological activity against vitamin B<small><sub>2</sub></small> deficiency. Symptoms associated with vitamin B<small><sub>2</sub></small> deficiency include glossitis, seborrhea, angular stomaitis, cheilosis and photophobia. The vitamers include riboflavin and its phosphate derivatives (and includes their salt, ionised and hydrate forms).