Cefuroxime

CAS: 55268-75-2 F: C16H16N4O8S W: 424.39

Cefuroxime is an orally active second-generation cephalosporin antibiotic with increased stability to β-lactamase. Cefu

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Bioactivity	Cefuroxime is an orally active second-generation cephalosporin antibiotic with increased stability to β-lactamase. Cefuroxime has a broad spectrum activity against Gram-positive and Gram-negative bacteria[1].
Invitro	Cefuroxime is highly active against S. aureus (MIC=0.25 μg/ml), regardless of whether the strains produces a penicillinase. It is against Staphylococcus aureus methicillin susceptible; S. aureus, methicillin resistant, Streptococcus pyogenes, S. pneumoniae, S. viridans, S. faecalis, and Clostridium spp with MIC values of 0.25 μg/ml, 5.9 μg/ml, 0.125 μg/ml, 0.125 μg/ml, 0.125 μg/ml, >125.0 μg/ml, and 1.2 μg/ml, respectively[1].Cefuroxime (10-100 μg/ml; 2-6 hours) rapidly bactericidal, its action is comparatively slow against the strains of S. aureus, but, even so, over 99% of the initial inoculum is killed by 6 h. The gram-negative organisms are killed rapidly, and in most cases over 99% of the very large inocula are killed within 2 h; the β-lactamase-producing strains are killed as quickly as non-enzyme-producing strains[1].
In Vivo	Rabbits (weighing 2.0 to 2.5 kg) are challenged intravenously with S. aureus strain 630 (a penicillinase-producing strain), the median effective dose of Cefuroxime is 3 mg/kg as a result of the protection test[2].
Name	Cefuroxime
CAS	55268-75-2
Formula	C16H16N4O8S
Molar Mass	424.39
Transport	Room temperature in continental US; may vary elsewhere.
Storage	Please store the product under the recommended conditions in the Certificate of Analysis.
Reference	[1]. Callaghan, et al. Cefuroxime, a New Cephalosporin Antibiotic: Activity in Vitro. Antimicrob Agents Chemother. 1976 Mar;9(3):511-9. [2]. D M Ryan, et al. Cefuroxime, a New Cephalosporin Antibiotic: Activity in Vivo. Antimicrob Agents Chemother. 1976 Mar;9(3):520-5.