Diethyl fumarate was synthesized with fumaric and alcohol as raw materials and sodium acid sulfate as catalyst.
以富马酸和乙醇为原料，硫酸氢钠作催化剂合成富马酸二乙酯。
2
Thus, the PFR was optimal for immobilized cells to produce L-malic acid in ammonium fumarate system.
因此，在富马酸铵体系中用固定化酶生产L-苹果酸采用填充床反应器更佳。
3
The method is simple, efficient and accurate, and suitable for routine analysis of saccharine sodium, dimethyl fumarate, benzoic acid, and sorbic acid in baked food such as biscuits and moon cakes.