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Merck
CN

SML4305

Ceftiofur sodium salt

new

≥98% (HPLC)

Synonym(s):

(6R,7R)-7-[[(2Z)-(2-Amino-4-thiazolyl)(methoxyimino)acetyl]amino]-3-[[(2-furanylcarbonyl)thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid monosodium salt, Sodium (6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(((furan-2-carbonyl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate, Ceftiofur sodium, U 64279E

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About This Item

Empirical Formula (Hill Notation):
C19H16N5NaO7S3
CAS Number:
Molecular Weight:
545.54
UNSPSC Code:
12352200
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Quality Level

Assay

≥98% (HPLC)

form

powder

storage condition

desiccated

color

white to beige

solubility

H2O: 2 mg/mL, clear (warmed)

storage temp.

2-8°C

General description

potent, broad-spectrum β-lactam bactericidally inhibits bacterial cell wall synthesis via PBP binding, its active metabolite boosting veterinary efficacy and ensuring safety.

Ceftiofur sodium salt a third-generation β-lactam antibiotic, exhibits broad-spectrum bactericidal activity against many veterinary pathogens. Its core mechanism disrupts bacterial cell wall synthesis by irreversibly inactivating penicillin-binding proteins (PBPs) on the inner bacterial membrane, causing cell lysis. It shows potent activity with low MIC values against key pathogens like Pasteurella multocida (MIC90 ≤ 0.03 µg/ml) and Actinobacillus pleuropneumoniae (MIC90 ≤ 0.125 µg/ml). Parenterally administered due to poor oral absorption, ceftiofur rapidly metabolizes in vivo to desfuroylceftiofur (DFC), an equally active metabolite enhancing its efficacy. With a good therapeutic safety profile, ceftiofur is a significant veterinary antimicrobial for susceptible infections.

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Hygroscopic Store with desiccant

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