英文别名2-Oxazolecarboxylic acid, 5-ethoxy-4-methyl-, ethyl ester; Vitamin B6 Impurity 12; ethyl 5-ethoxy-4-methyl-1,3-oxazole-2-carboxylate; Vitamin B6 Impurity 94; Vitamin B6 Impurity 17; Pyridoxine (Vitamin B6) Impurity 54; 5-Ethoxy-4-methyloxazole-2-carboxylic acid ethyl ester