(6R,7R)-7-[(2Z)-2-ethoxyimino-2-[5-(phosphonoamino)-1,2,4-thiadiazol-3-yl]acetyl]amino]-3-[4-(1-methylpyridin-1-ium-4-yl)-1,3-thiazol-2-yl]sulfanyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
(6R,7R)-7-(((2Z)-(Ethoxyimino)(5-(phosphonoamino)-1,2,4-thiadiazol-3-yl)acetyl)amino)-3-((4-(1-methylpyridinium-4-yl)thiazol-2-yl)sulfanyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-en-2-carboxylate Monoacetate Monohydrate