Cefixime EP Impurity F

IMPURITIES

Product Details

CAT No.# CS-O-15247
Category Impurities
CAS 79368-95-9
Molecular Weight 481.5
Molecular Formula C18H19N5O7S2
Purity: >98%
Synonyms: Cefixime Ethyl Ester Sodium Salt;(6R,7R)-7-[[(Z)-2-(2-aminothiazol-4-yl)-2-[(2-ethoxy-2- oxoethoxy)imino]acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2- ene-2-carboxylic acid.
Application Notes: Impurity in commercial preparation of Cefixime and an ester impurity of the third generation cephalosporin antibiotic.
References: Bian, L. et al.: Yao. Fen. Zaz., 30, 872 (2010);
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The balance used are calibrated with weights traceable to National Standards NIST for accuracy
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16. 2-Phenoxymethanesulfonanilide
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Smileys:
OC(C1=C(C=C)CS[C@]([H])([C@@H]2NC(/C(C3=CSC(N)=N3)=N\OCC(OCC)=O)=O)N1C2=O)=O



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