Entry C04908 in KEGG (1-(4-hydroxy-2-methylpyrimid-5-ylmethyl)-3-(beta-hydroxyethyl)-2-methylpyridinium bromide):
contains the Br3− anion which is a very unlikely species. The name clearly indicates that it should simply be the bromide (Br−) anion. The formula from KEGG (C14H18N3O2.Br) indicates that the tribromide anion (Br3−) is not meant either.
Entry MC004209 in BioMeta has now the correct structure: