5909-24-0
4-氯-2-甲硫基嘧啶-5-羧酸乙酯
→
5909-25-1
ethyl 2,4-bis(methylsulfanyl)pyrimidine-5-carboxylate
+
73781-88-1
2-甲硫基-5-嘧啶羧酸乙酯
148550-51-0
2-甲砜基-5-嘧啶甲酸乙酯