(6R,7R)-7-[(E)-2-(2-Aminothiazol-4-yl-)-2-(hydroxyimino)acetamido]-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid trifluoroacetic acid salt ;
CAS # 178601-88-2 (base) ;
C14H13N5O5S2 (free base) ; Mol. Wt.: 395.41 ;
C16H14F3N5O7S2 (TFA salt) ; Mol. Wt.: 509.44 ;