Pyridinium, 4-(2-(((6R,7R)-2-carboxy-7-(((2Z)-2-(ethoxyimino)-2-(5-(phosphonoamino)-1,2,4-thiadiazol-3-yl)acetyl)amino)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-en-3-yl)thio)-4-thiazolyl)-1-methyl-, inner salt — Molecular Profile | Crick