Shelf life (days): 1460.0
Formulation: A crystalline solid
Formal Name: 2-[[(Z)-[1-(2-amino-4-thiazolyl)-2-[[(2S,3S)-2-methyl-4-oxo-1-sulfo-3-azetidinyl]amino]-2-oxoethylidene]amino]oxy]-2-methyl-propanoic acid
Purity: ≥95%
Formula Markup: C13H17N5O8S2
Formula Weight: 435.4
CAS Number: 78110-38-0
Notes: Aztreonam is a synthetic β-lactam antibiotic of the monobactam class.{31705} It is active against clinical isolates of E. coli, S. marcescens, P. aeruginosa, Klebsiella species, Proteus species, and Enterobacter species (MICs = S. pneumoniae, B. fragilis, and S. faecalis (MICs = >100 µg/ml for all). It interferes with peptidoglycan synthesis in the bacterial cell wall of the Gram-negative bacteria E. coli, P. vulgaris, E. cloacae, K. pneumoniae, and P. aeruginosa by inhibiting penicillin-binding protein 3 (PBP3; IC100 = 0.1 µg/ml for all). It increases survival in mice with systemic Gram-negative bacterial infections (ED50s = 0.1-24.7 mg/kg). Formulations containing aztreonam have been used in the treatment of P. aeruginosa infections in individuals with cystic fibrosis.
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