Tags:1820954-21-9 Molecular Formula|1820954-21-9 MDL|1820954-21-9 SMILES|1820954-21-9 3-[[(3S,5S)-5S-[[(aminosulfonyl)amino]methyl]-3-pyrrolidinyl]thio]-6S-[(1R)-1-hydroxyethyl]-4R-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid, hydrate