(6R,7R)-7-((2R)-2-Amino-2-(m-methanesulfonamidophenyl)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-((amino(3-((methylsulfonyl)amino)phenyl)acetyl)amino)-3-methyl-8-oxo-, (6R-(6alpha,7beta(R*)))- 54818-11-0 Cefsumide Cefsumide [INN] Cefsumido [INN-Spanish] Cefsumidum [INN-Latin] FR 10612