4-羟基-2-巯基-5-甲基嘧啶

2-(甲基硫代)-5-甲基嘧啶-4(1H)-酮

4-氯-5-甲基-2-(甲基硫代)嘧啶

2,4,6-三氯-5-甲基嘧啶

6-chloro-5-methyl-pyrimidine-2,4-diyldiamine