429663-56-9

1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,3-[[1-(4-carboxy-2-thiazolyl)-4-piperidinyl]thio]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-, disodium salt, (4R,5S,6S)-