Chemical identity

Cefuroxime EP Impurity B

CAS 39685-31-9 · C17H17N3O8S

01Identity

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

Lazychem IDLC-10203
PubChem CID9571078
NameCefuroxime EP Impurity B
CAS RN39685-31-9
Molecular formulaC17H17N3O8S
Molecular weight423.40 g/mol
IUPAC name(6R,7R)-3-[(acetyloxy)methyl]-7-[[(Z)-(furan-2-yl)(methoxyimino)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
InChIKeyYBHZVPYSEUQIII-DYJQDLSISA-N

02Structure identifiers

2D structurePubChem CID 9571078
2D structure: Cefuroxime EP Impurity B, CAS 39685-31-9
Structure of Cefuroxime EP Impurity B (CAS 39685-31-9). LazyChem record. Source identity: PubChem CID 9571078. Confirm the identifiers before analytical use.Download structure image

Structure facts for this exact identity.

Molecular formulaC17H17N3O8S
InChIKeyYBHZVPYSEUQIII-DYJQDLSISA-N
Ring count3
Defined stereocentres2
Unassigned stereocentres0
SMILESCC(=O)OCC1=C(N2[C@@H]([C@@H](C2=O)NC(=O)/C(=N\OC)/C3=CC=CO3)SC1)C(=O)O
InChIInChI=1S/C17H17N3O8S/c1-8(21)28-6-9-7-29-16-12(15(23)20(16)13(9)17(24)25)18-14(22)11(19-26-2)10-4-3-5-27-10/h3-5,12,16H,6-7H2,1-2H3,(H,18,22)(H,24,25)/b19-11-/t12-,16-/m1/s1

03Stereochemistry

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

Defined stereocentres22D structure
Unassigned stereocentres02D structure
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 / RCSNOT FOUND IN REVIEWED ENTRIESCAS 39685-31-9 was not found in the reviewed exact-identity entries. Generic, class, analogue, salt and isomer provisions were not evaluated.
SCOMETNOT FOUND IN REVIEWED CAS ENTRIESCAS 39685-31-9 was not found in the reviewed exact-CAS mapping. Generic and analogue entries were not evaluated.

05Names and relationships

Associated parent compound

Cefuroxime

View API and impurity family

Other names

  • Cefuracetime
  • Cefuracetima
  • Cefuracetimum
  • Cefuracetime [INN:BAN]
  • Cefuracetimum [INN-Latin]
  • Cefuracetima [INN-Spanish]
  • UNII-F69EA18270
  • EINECS 254-592-2
  • SKF 81367
  • CEFURACETIME [INN]

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