Desfuroyl Ceftiofur((6R,7R)-7-[[(2Z)-(2- Amino-4-thiazolyl)(methoxyimin o)acetyl]amino]-3-(mercapto

A metabolite of Ceftiofur, which is microbiologically active. Synonyms: (6R,7R)-7-[[(2Z)-(2-Amino-4-thiazolyl)(methoxyimino)acetyl]amino]-3-(mercaptomethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid, DFC, Defuroylceftiofur, CAS No: 120882-22-6, Molecular Formula: C14H15N5O5S3, Molecular Weight: 429.49, Appearance: Supplied as an off-white to white solid, Purity: >90%, Melting Point: >200°C (dec), Solubility: DSMO (slightly), Methanol (slightly, heated), Method for Determining Identity: Proton NMR Spectroscopic and Mass Spectrometric Analysis, TLC Conditions: C18, Acetonitrile: Water=9:1, SiO2, Visualized with UV and KMnO4, Single Spot, Rf-0.75. Elemental Analysis: Calculated:, %C: 39.15, %H: 3.52, %N: 16.31, Atmosphere: Inert Gas, Storage and Stability: Long-term storage is recommended at -70°C under inert gas. Stable for 6 months after receipt. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Hygroscopic and temperature sensitive. Store under inert atmophere. Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. Toxicity and Hazards:  All products should be handled by qualified personnel only, trained in laboratory procedures.