Propanedioic acid,[(2S,5R)-2-carboxy-3-methyl-4,4-dioxido-7-oxo-6-(2-pyridinylmethylene)-4-thia-1-azabicyclo[3.2.0]hept-3-yl]methyl methyl ester, sodium salt

CAS No: 669720-60-9

propanedioic,carboxy,methyl,dioxido,pyridinylmethylene,azabicyclo,ester,sodium