(6R,7R)-7-((Z)-2-(5-((((((3-((Z)-2-(((6R,7R)-2-carboxylato-3-((4-(1-methylpyridin-1-ium-4-yl)thiazol-2-yl)thio)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-7-yl)amino)-1-(ethoxyimino)-2-oxoethyl)-1,2,4-thiadiazol-5-yl)(nitroso)amino)(hydroxy)phosphoryl)oxy)(hydroxy)phosphoryl)amino)-1,2,4-thiadiazol-3-yl)-2-(ethoxyimino)acetamido)-3-((4-(1-methylpyridin-1-ium-4-yl)thiazol-2-yl)thio)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate