ABC00359NC

Cefuroxime Sodium EP impurity E

Cefuroxime Sodium EP Impurity E is a degradation byproduct arising from hydrolytic cleavage of the ฮฒ-lactam ring in the parent cephalosporin, retaining a thiazole moiety and a sodium-modified carboxylate terminus. Its structure features a fused oxepane-thiazole core with a truncated side chain compared to cefuroxime, bearing an acetylamino group at C-3 and a deprotonated carboxylic acid functionality. This impurity serves as a critical HPLC reference standard for quantifying process-related degradation in cefuroxime formulations.

On Request
Molecular Formula C15H13N3O6S
Molecular Weight 363.3000
CAS Number 947723-87-7 โœ“ Verified
PubChem CID 71587890 โ†—
Purity N/A
Product Type API Impurity
Parent Drug Cefuroxime
Lead Time On Request
IUPAC Name (2Z)-N-[(4R,5R)-3,11-dioxo-10-oxa-6-thia-2-azatricyclo[6.3.0.02,5]undec-1(8)-en-4-yl]-2-(furan-2-yl)-2-methoxyiminoacetamide
Official Reference Standards
Std Catalog # Quantity Price
USP 1A18270 โ†— 25 mg USD 918.00

๐Ÿ“ Synonyms

947723-87-7 Descarbamoylcefuroxime lactone Cefuroxime Axetil Impurity E UNII-4I89S39HC0 4I89S39HC0 Cefuroxime axetil impurity E [EP] Cefuroxime axetil specified impurity E [EP] DTXSID20241610 2-Furanacetamide, alpha-(methoxyimino)-N-((5aR,6R)-1,4,5a,6-tetrahydro-1,7-dioxo-3H,7H-azeto(2,1-b)furo(3,4-d)(1,3)thiazin-6-yl)-, (alphaZ)- CEFUROXIME AXETIL IMPURITY E [EP IMPURITY]

๐Ÿ”ฌ Chemical Identifiers

CO/N=C(/C1=CC=CO1)\C(=O)N[C@H]2[C@@H]3N(C2=O)C4=C(COC4=O)CS3
InChI=1S/C15H13N3O6S/c1-22-17-9(8-3-2-4-23-8)12(19)16-10-13(20)18-11-7(5-24-15(11)21)6-25-14(10)18/h2-4,10,14H,5-6H2,1H3,(H,16,19)/b17-9-/t10-,14-/m1/s1
LRBGPGHWGUNCJM-FBCAJUAOSA-N

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