Piroxicillin is a broad-spectrum antibiotic. In vitro it is more active than piperacillin, apalcillin and mezlocillin especially against the following strains; E. coli, Ps. aeruginosa, Ps. stutzeri, K. pneumoniae, Eb. cloacae, Ser. marcescens, Proteus, Sh. flexneri, Y. enterocolitica, Cb. freundii, Acb. calcoaceticus, Bacteroides and Sc. faecalis. It shows very low MIC values against clinically important Gram-negative bacteria, primarily Pseudomonas aeruginosa. The action of piroxicillin is bactericidal.
MedKoo Cat#: 415008
Name: Piroxicillin
CAS#: 82509-56-6
Chemical Formula: C27H28N8O9S2
Exact Mass: 672.1421
Molecular Weight: 672.69
Elemental Analysis: C, 48.21; H, 4.20; N, 16.66; O, 21.41; S, 9.53
The following data is based on the product molecular weight 672.69 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 1.15 mL | 5.76 mL | 11.51 mL |
| 5 mM | 0.23 mL | 1.15 mL | 2.3 mL |
| 10 mM | 0.12 mL | 0.58 mL | 1.15 mL |
| 50 mM | 0.02 mL | 0.12 mL | 0.23 mL |
