It is maigre that to hydroxyl benzoic acid Yi Bingfu adds up to ester natrium and benzoic acid natrium? 对羟基苯甲酸乙丙复合酯钠和苯甲酸钠是不是素食?
By use of dodecatungstophosphoric acid as catalyst,butyl para hydroxybenzoate was synthesized by esterification of para hydroxybenzoic acid and butyl alcohaol. 以十二钨磷酸为催化剂,由对羟基苯甲酸和正丁醇酯化制得对羟基苯甲酸丁酯。
Who knows what effect acetyl salicylic acid has? 谁知道乙酰水杨酸有什么作用?
Salicylic acid belongs to the group of medicines known as keratolytics. 水杨酸属于已知的角质层分离剂类药物。