Form
Powder
Appearance
White crystalline powder
Source
Synthetic
Water Content (Karl Fisher)
≤ 2.0%
Optical Rotation
-26° to -32°
Assay
(On Dried Basis): 94.0-103.0%
Residue On Ignition
≤ 0.1%
Heavy Metals
≤ 0.001%
Aztreonam is a β-lactam antibiotic known as a monobactam because of its unique structure which contains one rather than two rings fused together found in generic β-lactams such as ampicillin. Because of its unique monocyclic structure, aztreonam is not typically inactivated by β-lactamases.
TOKU-E offers two forms of aztreonam: aztreonam (A017), and aztreonam solublized (A038).
78110-38-0
C13H17N5O8S2
435.43
β-lactams interfere with PBP (penicillin binding protein) activity involved in the final phase of peptidoglycan synthesis. PBP’s are enzymes which catalyze a pentaglycine crosslink between alanine and lysine residues providing additional strength to the cell wall. Without a pentaglycine crosslink, the integrity of the cell wall is severely compromised and ultimately leads to cell lysis and death. Resistance to β-lactams is commonly due to cells containing plasmid encoded β-lactamases.
2-8 °C
2941.90.5000
Aztreonam targets primarily gram negative bacteria and shows little effect against gram positive and anaerobic bacteria.
Powder
White crystalline powder
Synthetic
≤ 2.0%
-26° to -32°
(On Dried Basis): 94.0-103.0%
≤ 0.1%
≤ 0.001%