1 218 1-[(4-amino-2-methylpyrimidin-5-yl)methyl]-3-(2-hydroxyethyl)-2-methylpyridinium 1.000 2 VIB 3-(4-amino-2-methyl-pyrimidin-5-ylmethyl)-5-(2-hydroxy-ethyl)-4-methyl-thiazol-3-ium 0.850