Chemical identity

Cefazolin EP Impurity C

CAS 56842-77-4 · C11H12N6O4S

01Identity

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

Lazychem IDLC-09756
PubChem CID129010479
NameCefazolin EP Impurity C
CAS RN56842-77-4
Molecular formulaC11H12N6O4S
Molecular weight324.32 g/mol
IUPAC name(6R,7R)-3-methyl-8-oxo-7-[(1H-tetrazol-1- ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2- ene-2-carboxylic acid
InChIKeyDGYURGWZOSQCFG-GMSGAONNSA-N

02Structure identifiers

2D structurePubChem CID 129010479
Two-dimensional chemical structure of Cefazolin EP Impurity C, CAS 56842-77-4
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)CN3C=NN=N3)SC1)C(=O)O
InChINot listed
Formula from structureC11H12N6O4S
Molecular weight from structure324.32 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

1 record

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.

No additional structure-linked configuration with the same connectivity is currently present in the LazyChem dataset.

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 56842-77-4 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 56842-77-4 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

Cefazolin

View API and impurity family

Other names

  • Cefazolin 3-methyl Analog
  • 7-[1-(1H)-Tetrazolylacetamido]desacetoxycephalosporanic Acid
  • Cefazolin Impurity C
  • 56842-77-4
  • Cefazolin EP Impurity C
  • (6R,7R)-7-(2-(1H-tetrazol-1-yl)acetamido)-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • Cefazolin impurity H
  • (6R,7R)-3-methyl-8-oxo-7-[[2-(tetrazol-1-yl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • PGB16683CG
  • 7-(1-(1H)-Tetrazolylacetamido)deacetoxycephalosporanic acid
  • 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 3-methyl-8-oxo-7-((1H-tetrazol-1-ylacetyl)amino)-, (6R-trans)-
  • (6R-trans)-3-methyl-8-oxo-7-[(1H-tetrazol-1-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, cefazolin sodium impurity C

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