SPL Set ID: 22dfc2e4-07a7-8d13-e063-6394a90a3e9f

Cefazolin for Injection, USP is a semi-synthetic cephalosporin for parenteral administration. It is the sodium salt of 3-{[(5-methyl-1,3,4-thiadiazol-2-yl)thio]-methyl}-8-oxo-7-[2-(1H-tetrazol-1-yl) acetamido]-5-thia-1-azabicyclo [4.2.0]oct-2-ene-2-carboxylic acid. Structural Formula: [structure] The sodium content is 48 mg (2 mEq sodium ion) per 1 gram of cefazolin. Cefazolin for Injection, USP is a sterile white or off-white powder or crystalline powder containing Cefazolin Sodium USP supplied in vials equivalent to 1 gram，2 grams or 3 grams of cefazolin.