121123-17-9 5-Thia-1-azabicyclo(4.2.0)oct-2-oxo-2-carboxylic acid, 7-(((2R)-amino(4-hydroxyphenyl)acetyl)amino)-8-oxo-3-(1-propenyl)-, monohydrate, (6R,7R)- 5-Thia-1-azabicyclo(4.2.0)oct-2-oxo-2-carboxylic acid, 7-((amino(4-hydroxyphenyl)acetyl)amino)-8-oxo-3-(1-propenyl)-, monohydrate, (6R-(6alpha,7beta(R*))-)- CEFPROZIL Cefprozil [USAN] Cefprozil hydrate Cefzil