1. A salt of a pullulan aminoalkyl ether according to claim 1, wherein the salt-forming acid is hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, acetic acid, or oxalic acid. 根据权利要求1的普鲁兰氨基烃基醚的盐,其中,由盐形成的酸为盐酸、氢溴酸、硫酸、硝酸、乙酸或者草酸。
2. The yield of acetylsalicylic acid reached 90. 44%. 在最佳工艺条件下,收率可达:9044%。
3. Objective: To investigate the effect of 2. 4-Dinitrophenol on acute toxicity of acetylsalicylic acid in mice. 目的:观察2。4-二硝基酚对乙酰水杨酸急性毒性的影响。
4. Methods: The LD50 of acetylsalicylic acid with 2. 4-Dinitrophenol on mice was determined by simplified probit method. 方法:用简化机率法测定乙酰水杨酸与2。4-二硝基酚合用时小鼠的LD50的影响。
5. The yield of acetylsalicylic acid reached 90. 44%. 在最佳工艺条件下,收率可达:9044%。