81036-54-6
(5R,6S)-3-(4-Amino-butylsulfanyl)-6-((R)-1-hydroxy-ethyl)-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid
81036-55-7
(5S,6S)-3-(4-Amino-butylsulfanyl)-6-((R)-1-hydroxy-ethyl)-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid
105498-51-9
(5R,6S)-6-<(1R)-hydroxyethyl>-2-ethyl-2-penem-3-carboxylic acid sodium salt
81036-49-9
(5R,6S)-6-((S)-1-Hydroxy-ethyl)-3-(3-hydroxy-propylsulfanyl)-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester
81036-48-8
(5R,6S)-6-((R)-1-Hydroxy-ethyl)-3-(3-hydroxy-propylsulfanyl)-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester