Chemical identity

Cefazolin EP Impurity A

CAS 30246-33-4 · C11H12N4O3S3

01Identity

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

Lazychem IDLC-09754
PubChem CID6350581
NameCefazolin EP Impurity A
CAS RN30246-33-4
Molecular formulaC11H12N4O3S3
Molecular weight344.44 g/mol
IUPAC name(6R,7R)-7-amino-3-[[(5-methyl-1,3,4-thiadiazol-2- yl)sulfanyl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2- ene-2-carboxylic acid
InChIKeyHJSGHKMSDOLGJJ-HZGVNTEJSA-N

02Structure identifiers

2D structurePubChem CID 6350581
Two-dimensional chemical structure of Cefazolin EP Impurity A, CAS 30246-33-4
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=NN=C(S1)SCC2=C(N3[C@@H]([C@@H](C3=O)N)SC2)C(=O)O
InChINot listed
Formula from structureC11H12N4O3S3
Molecular weight from structure344.44 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 30246-33-4 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 30246-33-4 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 deacylated
  • 30246-33-4
  • (6R,7R)-7-Amino-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
  • NUA2X3C4S1
  • EINECS 250-099-1
  • 7-ZACA
  • EC 250-099-1
  • (6R-trans)-7-Amino-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid
  • 7-Amino-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, (6R,7R)-
  • CEFAZOLIN SODIUM IMPURITY A [EP IMPURITY]
  • (6R,7R)-7-AMINO-3-(((5-METHYL-1,3,4-THIADIAZOL-2-YL)SULFANYL)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-AMINO-3-(((5-METHYL-1,3,4-THIADIAZOL-2-YL)THIO)METHYL)-8-OXO-, (6R,7R)-

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