Cefoperazone Free Acid is a semi-synthetic, broad-spectrum third-generation cephalosporin. Patented in 1974, it was marketed by Pfizer under the trade name Cefobid. The compound has activity against Pseudomonas. It has a tetrazolyl moiety that confers β-lactamase resistance. Cefoperazone may be used as an analytical standard for the determination of cefoperazone in raw bovine milk.
Cefoperazone Free Acid is slightly soluble in DMSO and Methanol.
