Shelf life (days): 1460.0
Formulation: A solid
Formal Name: (6R,7R)-7-(2-(1H-tetrazol-1-yl-1-15N)acetamido-13C2-13C2)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Purity: ≥95%
Formula Markup: C12[13C]2H14N7[15N]O4S3
Formula Weight: 457.5
CAS Number: 2101505-58-0
Notes: Cefazolin-13C2,15N is intended for use as an internal standard for the quantification of cefazolin (Item No. 15776) by GC- or LC-MS. Cefazolin is a broad-spectrum cephalosporin antibiotic that is active in vitro against various Gram-positive and Gram-negative bacteria (MICs = 0.2-12.5 μg/ml).{25759} It also inhibits the growth of clinical isolates of S. aureus, E. coli, P. mirabilis, and K. pneumoniae (MICs = 0.1-25 µg/ml). In vivo, cefazolin protects against S. aureus, E. coli, and P. mirabilis infection in mice (ED50s = <0.09-1.78, 0.44-3.63, and 2.31-5.2 mg/animal, respectively). Formulations containing cefazolin have been used to treat a variety of bacterial infections.