1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,6-(1-hydroxyethyl)-4-methyl-3-[1-[[(1-oxido-4-pyridinyl)methyl]sulfonyl]-3-phenanthrenyl]-7-oxo-, monopotassium salt
CAS No. 139604-31-2