BLI-489 hydrate 

BLI-489 hydrate, a penem β-lactamase inhibitor, is active against class A and class C as well as some class D β-lactamases. The combination of Piperacillin and BLI-489 hydrate is efficacious against murine infections caused by class A (including extended-spectrum β-lactamases), class C (AmpC), and class D β-lactamase-expressing pathogens^[1][2].

On the basis of preliminary results with various ratios, a dosing ratio of 8:1 was found to be optimal for retention of enhanced efficacy. Piperacillin-BLI-489 dosed at an 8:1 ratio was efficacious against murine infections caused by class A (including extended-spectrum beta-lactamases), class C (AmpC), and class D beta-lactamase-expressing pathogens^[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

C₁₃H₁₂N₃NaO₅S.xH₂O

2580120-08-5

固体

Light yellow to yellow

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

• [1]. Petersen PJ, et al. Establishment of in vitro susceptibility testing methodologies and comparative activities of piperacillin in combination with the penem {beta}-lactamase inhibitor BLI-489. Antimicrob Agents Chemother. 2009;53(2):370-384.  [Content Brief]

  [2]. Petersen PJ, et al. Efficacy of piperacillin combined with the Penem beta-lactamase inhibitor BLI-489 in murine models of systemic infection. Antimicrob Agents Chemother. 2009;53(4):1698-1700.  [Content Brief]