1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3-[[1-[[(2R)-tetrahydro-2-furanyl]carbonyl]-3-azetidinyl]thio]-, monosodium salt, (4R,5S,6S)-
CAS No. 886589-68-0