Chemical identity

Cefdinir 3-Methyl Impurity

CAS 71091-93-5 · C13H13N5O5S2

01Identity

Identifiers and names for this exact compound. Empty fields are left unassigned.

Lazychem IDLC-09787
PubChem CID15080822
NameCefdinir 3-Methyl Impurity
CAS RN71091-93-5
Molecular formulaC13H13N5O5S2
Molecular weight383.40 g/mol
IUPAC name(6R,7R)-7-[(Z)-2-(2-Aminothiazol-4-yl)-2-(hydroxyimino)acetamido]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
InChIKeyFMPXXFJEIVCXCL-ODXWQDPNSA-N

02Structure identifiers

2D structurePubChem CID 15080822
Two-dimensional chemical structure of Cefdinir 3-Methyl Impurity, CAS 71091-93-5
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 3 rings, includes aromatic atoms, includes aliphatic carbon, has 2 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres2
Unassigned stereocentres0
Ring count3
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC1=C(N2[C@@H]([C@@H](C2=O)NC(=O)/C(=N\O)/C3=CSC(=N3)N)SC1)C(=O)O
InChINot listed
Formula from structureC13H13N5O5S2
Molecular weight from structure383.40 g/mol

03Stereochemistry

The published structure contains 2 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres2Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 4Before symmetry reduction

Published same-connectivity configurations

2 records

These records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

Scope: The mathematical 2^n value is only an upper bound. Symmetry and other stereogenic elements can change the number of distinct stereoisomers. A hypothetical configuration is not published as a compound record without a verified structure identity.

04India status for this compound

These results apply only to this exact compound name and CAS number. Confirm the current official instruments before making a regulatory decision.

NDPS / RCSNO EXACT MATCH FOUNDCAS 71091-93-5 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 71091-93-5 has no exact match in the reviewed SCOMET list.
Review date2026-08-01Recheck the current official instruments for the material, concentration, activity and date in question.

05Names and relationships

Associated parent compound

Cefdinir

View API and impurity family

Other names

  • 3-Methyl cefdinir
  • 71091-93-5
  • Cefdinir impurity C
  • Cefdinir Impurity 1 (Impurity G)
  • G9Y9M0S93M
  • (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-hydroxyiminoacetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • (6R ,7R )-7-((Z )-2-(2-Aminothiazol-4-yl)-2-(hydroxyimino)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid
  • 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2Z)-2-(2-amino-4-thiazolyl)-2-(hydroxyimino)acetyl)amino)-3-methyl-8-oxo-, (6R,7R)-
  • Cefdinir Impurity J
  • UNII-G9Y9M0S93M
  • SCHEMBL5487622
  • C4X-121049Cefdinir Impurity 12

Related records from the same parent family

06Documented history

Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.

No dated history available

No verified discovery, first report, occurrence, use or issue event is currently available for this identity.

07Sources