(2S,5R,6R)-6-((R)-2-(4-Hydroxy-1,5-naphthyridin-3-carboxamido)-2-phenylacetamido)-3,3-dimethyl-7-oxo-5-thia-1-azabicyclo(3.2.0)heptan-2-carbonsaeure (2S,5R,6R)-6-((R)-2-(4-Hydroxy-1,5-naphthyridin-3-carboxamido)-2-phenylacetamido)-3,3-dimethyl-7-oxo-5-thia-1-azabicyclo(3.2.0)heptan-2-carboxylic acid (6R)-6-((R)-2-(4-Hydroxy-1,5-naphthyridin-3-carboxamido)-2-phenylacetamido)penicillansaeure 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-(((((4-hydroxy-1,5-naphthyridin-3-yl)carbonyl)amino)phenylacetyl)amino)-3,3-dimethyl-7-oxo-, (2S-(2-alpha,5-alpha,6-beta(S*)))- 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-(((2R)-(((4-hydroxy-1,5-naphthyridin-3-yl)carbonyl)amino)phenylacetyl)amino)-3,3-dimethyl-7-oxo-, (2S,5R,6R)- 63469-19-2 Apalcilina [INN-Spanish] Apalcillin Apalcilline [INN-French] Apalcillinum [INN-Latin] BRN 6030446