Chemical identity

Norfloxacin EP Impurity D/ Norfloxacin Descarboxy Impurity

CAS 75001-82-0 · C15H18FN3O

01Identity

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

Lazychem IDLC-23723
PubChem CID12733939
NameNorfloxacin EP Impurity D/ Norfloxacin Descarboxy Impurity
CAS RN75001-82-0
Molecular formulaC15H18FN3O
Molecular weight275.3 g/mol
IUPAC name1-Ethyl-6-fluoro-7-(piperazin-1-yl)quinolin-4(1H)-one
InChIKeyGGLTXLVORITVKE-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 12733939
Two-dimensional chemical structure of Norfloxacin EP Impurity D/ Norfloxacin Descarboxy Impurity, CAS 75001-82-0
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, contains at least one halogen atom. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres0
Ring count3
Secondary amines1
Tertiary amines1
N-methyl amine sites0
SMILESO=C1C=CN(CC)C2=C1C=C(F)C(N3CCNCC3)=C2
InChINot listed
Formula from structureC15H18FN3O
Molecular weight from structure275.3 g/mol

03Possible N-nitroso structures

Shown for structural screening only. These candidates are not confirmed impurities, formation predictions or analytical findings.

Matched amine site1 candidate
Chemical structure of Norfloxacin EP Impurity D/ Norfloxacin Descarboxy Impurity with the matched amine site highlighted in amber
Amber identifies the screened atom and adjacent bonds.
Possible structure candidateUnverified identity
First calculated possible N-nitroso structure derived from Norfloxacin EP Impurity D/ Norfloxacin Descarboxy Impurity, with the new N-nitroso group highlighted in amber
The new N-N=O atoms and bonds are highlighted. No CAS number or compound name is assigned by this calculation.
Candidate 1Possible N-nitroso structural candidate
Calculated formula
C15H17FN4O2
Candidate SMILES
CCn1ccc(=O)c2cc(F)c(N3CCN(N=O)CC3)cc21

Interpretation: A structural alert alone does not establish that a nitrosamine forms. Evaluate nitrite sources, amine reagents, pH, temperature, process sequence, purge and analytical evidence.

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 75001-82-0 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 75001-82-0 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

Norfloxacin

View API and impurity family

Other names

  • Norfloxacin Descarboxy Impurity
  • Norfloxacin EP Impurity D

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