Chemical identity

Candesartan Cilexetil Nitro Impurity/Candesartan Cilexetil PGI5 impurity

CAS 136285-67-1 · C23H19N3O4

01Identity

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

Lazychem IDLC-09269
PubChem CID12018931
NameCandesartan Cilexetil Nitro Impurity/Candesartan Cilexetil PGI5 impurity
CAS RN136285-67-1
Molecular formulaC23H19N3O4
Molecular weight401.1 g/mol
IUPAC nameethyl 2-(((2'-cyano-[1,1'-biphenyl]-4-yl)methyl)amino)-3-nitrobenzoate
InChIKeyCHPMKOFPDCKNBG-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 12018931
Two-dimensional chemical structure of Candesartan Cilexetil Nitro Impurity/Candesartan Cilexetil PGI5 impurity, CAS 136285-67-1
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 a nitro substructure. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres0
Ring count3
Secondary amines1
Tertiary amines0
N-methyl amine sites0
SMILESCCOC(=O)C1=C(C(=CC=C1)[N+](=O)[O-])NCC2=CC=C(C=C2)C3=CC=CC=C3C#N
InChINot listed
Formula from structureC23H19N3O4
Molecular weight from structure401.1 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 Candesartan Cilexetil Nitro Impurity/Candesartan Cilexetil PGI5 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 Candesartan Cilexetil Nitro Impurity/Candesartan Cilexetil PGI5 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
C23H18N4O5
Candidate SMILES
CCOC(=O)c1cccc([N+](=O)[O-])c1N(Cc1ccc(-c2ccccc2C#N)cc1)N=O

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 136285-67-1 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 136285-67-1 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

Candesartan

View API and impurity family

Other names

  • Candesartan PGI-5 Impurity
  • Candesartan Cilexetil Nitro Impurity
  • Candesartan Cilexetil PGI5 Impurity
  • Ethyl 2-{[(2'-cyano[1,1'-biphenyl]-4-yl)methyl]amino}-3-nitrobenzoate
  • 136285-67-1
  • DTXSID20475918
  • RefChem:342288
  • DTXCID20426728
  • ETHYL-2-[[(2'-CYANOBIPHENYL-4-YL)METHYL]AMINO]-3-NITROBENZOATE
  • ethyl 2-[[4-(2-cyanophenyl)phenyl]methylamino]-3-nitrobenzoate
  • MFCD09030634
  • Ethyl 2-[N-[(2'-Cyanobiphenyl-4-yl)methyl]amino]-3-nitrobenzoate

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