203007-73-2

Cefprozil IMpurity L Cefprozil Impurity 12（Cefprozil EP Impurity L） 2-hydroxyethyl (R)-2-amino-2-(4-hydroxyphenyl)acetate 2-hydroxyethyl (2R)-2-amino-2-(4-hydroxyphenyl)acetate CefprozilImpurity L(Hydroxyethyl p-Hydroxyphenylglycinate) (R)-α-Amino-4-hydroxy-Benzeneacetic Acid 2-Hydroxyethyl Ester Benzeneacetic acid, α-amino-4-hydroxy-, 2-hydroxyethyl ester, (αR)- Cefprozil EP impurity L/2-hydroxyethyl (R)-2-amino-2-(4-hydroxyphenyl)acetate/D(-)-4-Hydroxyphenylglycine Hydroxy Ethyl Ester