Chemical identity

N-Nitroso Cetirizine EP Impurity A

CAS 2005-04-1 · C17H18ClN3O

01Identity

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

Lazychem IDLC-21639
PubChem CID12434823
NameN-Nitroso Cetirizine EP Impurity A
CAS RN2005-04-1
Molecular formulaC17H18ClN3O
Molecular weight315.80 g/mol
IUPAC name1-((4-chlorophenyl)(phenyl)methyl)-4-nitrosopiperazine
InChIKeyISUJGWTZPVDIHO-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 12434823
Two-dimensional chemical structure of N-Nitroso Cetirizine EP Impurity A, CAS 2005-04-1
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 at least one halogen atom, contains an N-nitroso substructure. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres1
Ring count3
Secondary amines0
Tertiary amines2
N-methyl amine sites0
SMILESO=NN1CCN(C(C2=CC=C(Cl)C=C2)C3=CC=CC=C3)CC1
InChINot listed
Formula from structureC17H18ClN3O
Molecular weight from structure315.80 g/mol

03Stereochemistry

The published structure contains 0 defined and 1 unassigned tetrahedral stereocentre. The exact wedge and dash depiction is shown above.

Defined centres0Structure assigned
Unassigned centres1Structure unspecified
Assignment statusUnassignedExact published identity
Tetrahedral upper bound≤ 2Before 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 2005-04-1 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 2005-04-1 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

Cetirizine/ Hydroxyzine

View API and impurity family

Other names

  • N-Nitroso Hydroxyzine EP Impurity A

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