7664-93-9
硫酸
+
857586-10-8
5-ethyl-5-benzyl-2-thio-barbituric acid
→
42039-81-6
5-ethyl-2-sulfanylidene-1,3-diazinane-4,6-dione
17356-08-0
aminothioamide
133-13-1
乙基丙二酸二乙酯
111129-64-7
4,6-二羟基-5-乙基嘧啶