(Z )-2-(2-AMINOTHIAZOL-4-YL)-2-(HYDROXYIMINO)-N -((3RS ,5AR ,6R )-3-METHYL-1,7-DIOXO-1,3,4,5A,6,7-HEXAHYDROAZETO(2,1-B )FURO(3,4-D )(1,3)THIAZIN-6-YL(ACETAMIDE

Chemical FDA Substance Registry (openFDA)

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Chemical Identification

INCI Name	(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-hydroxyimino-N-[(4R,5R)-9-methyl-3,11-dioxo-10-oxa-6-thia-2-azatricyclo[6.3.0.02,5]undec-1(8)-en-4-yl]acetamide
PubChem CID	87815632
Molecular Formula	`C14H13N5O5S2`
InChIKey	`InChI=1S/C14H13N5O5S2/c1-4-`
SMILES	`CC1C2=C(C(=O)O1)N3[C@@H]([C@@H](C3=O)NC(=O)/C(=N\O)/C4=CSC(=N4)N)SC2`

Known Aliases (2)

Common Name

CEFDINIR IMPURITY E CEFDINIR LACTONE

Data Sources (1)

Source	Source ID	Name in Source	Properties
FDA Substance Registry (openFDA)	`0W2W754Q55`	(Z )-2-(2-AMINOTHIAZOL-4-YL)-2-(HYDROXYIMINO)-N -((3RS ,5AR ,6R )-3-METHYL-1,7-DIOXO-1,3,4,5A,6,7-HEXAHYDROAZETO(2,1-B )FURO(3,4-D )(1,3)THIAZIN-6-YL(ACETAMIDE	PUBCHEM: 87815632 FDA UNII: 0W2W754Q55

Record Info

ID	`B5KJ6oZ7WHXBXAsi5HRa3u`
Created	April 10, 2026, 8:47 p.m.
Modified	April 10, 2026, 8:47 p.m.
Enriched	April 11, 2026, 12:09 a.m.
Data Source	FDA Substance Registry (openFDA)