Azaerythromycin A

Azithromycin EP Impurity A, also known as 9-Deoxo-9a-aza-9a-methyl-9a-homoerythromycin A, is a chemical impurity commonly found in the production of Azithromycin, a widely used antibiotic medication. Azithromycin EP Impurity A is a semi-synthetic derivative of erythromycin, and it is structurally similar to Azithromycin, which makes it difficult to separate the two compounds during the manufacturing process. The usage of Azithromycin EP Impurity A is primarily limited to research and development, as it is not intended for human consumption. The compound has shown to have some antimicrobial activity, but its potency is significantly lower than that of Azithromycin. In addition, Azithromycin EP Impurity A may also be used as a reference standard in the testing and analysis of Azithromycin products. From a chemical perspective, Azithromycin EP Impurity A is a macrolide antibiotic and belongs to the same class of compounds as Azithromycin. The molecular formula for Azithromycin EP Impurity A is C38H68N2O13, and its molecular weight is 764.96 g/mol. The compound is a white to off-white solid that is insoluble in water but soluble in organic solvents such as methanol and ethanol. In conclusion, Azithromycin EP Impurity A is an important compound in the production and testing of Azithromycin products. While it may have some antimicrobial activity, its primary use is as a reference standard in research and development.