硫胺素

5-[5-(2-hydroxy-ethyl)-4-methyl-2-thioxo-thiazol-3-ylmethyl]-2-methyl-3H-pyrimidin-4-one

5-(氨基甲基)-2-甲基-4(1H)-嘧啶酮

5-羟基甲基-2-甲基嘧啶-4-醇

(2-methyl-6-oxo-1,6-dihydro-pyrimidin-5-yl)-acetic acid amide