恩替卡韦EP杂质A恩替卡韦RRS
QY-ETKW-A
2-amino-9-((1R,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one
1367369-78-5
C12H15N5O3