6-hydroxy-1,4,4,6-tetramethyl-1,3-diazinane-2-thione

1,4,4,6-四甲基-3H-嘧啶-2-硫酮

双丙酮胺草酸盐

1-methyl-3-(2-methyl-4-oxopentan-2-yl)thiourea

3-benzyl-4,6,6-trimethyl-1H-pyrimidine-2-thione