Chemical identity

(R)-Azelastine N-Oxide (Mixture of Diastereomers)

CAS 1346617-18-2 · C22H24ClN3O2

01Identity

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

Lazychem IDLC-00645
PubChem CID71313563
Name(R)-Azelastine N-Oxide (Mixture of Diastereomers)
CAS RN1346617-18-2
Molecular formulaC22H24ClN3O2
Molecular weight397.91 g/mol
IUPAC name4-(4-(4-chlorobenzyl)-1-oxophthalazin-2(1H)-yl)-1-methylazepane 1-oxide
InChIKeyQFWLGALGCDUDAP-QOBPCVTDSA-N

02Structure identifiers

2D structurePubChem CID 71313563
Two-dimensional chemical structure of (R)-Azelastine N-Oxide (Mixture of Diastereomers), CAS 1346617-18-2
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 4 rings, includes aromatic atoms, includes aliphatic carbon, has 1 defined stereocentre, contains at least one halogen atom. These statements are calculated from the published structure string.

Defined stereocentres1
Unassigned stereocentres1
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[N+]1(CCC[C@H](CC1)N2C(=O)C3=CC=CC=C3C(=N2)CC4=CC=C(C=C4)Cl)[O-]
InChINot listed
Formula from structureC22H24ClN3O2
Molecular weight from structure397.91 g/mol

03Stereochemistry

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

Defined centres1Structure assigned
Unassigned centres1Structure unspecified
Assignment statusPartially assignedExact published identity
Tetrahedral upper bound≤ 4Before symmetry reduction

Published same-connectivity configurations

3 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 1346617-18-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 1346617-18-2 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

Azelastine

View API and impurity family

Other names

  • (R)-Azelastine N-Oxide
  • 1346617-18-2
  • RefChem:407378
  • 828-116-4
  • 4-[(4-chlorophenyl)methyl]-2-[(4R)-1-methyl-1-oxidoazepan-1-ium-4-yl]phthalazin-1-one
  • (4R)-4-(4-(4-Chlorobenzyl)-1-oxophthalazin-2(1H)-yl)-1-methylazepane 1-oxide
  • 4-[(4-Chlorophenyl)methyl]-2-[(4R)-hexahydro-1-methyl-1-oxido-1H-azepin-4-yl]-1(2H)-phthalazinone
  • JF5WLD2UUN
  • AzelastineN-Oxide, (R)-
  • Azelastine N-Oxide (R)-Isomer
  • (R)-AzelastineN-Oxide(MixtureofDiastereomers)
  • Azelastine USP Related Compound F (R)-isomer ((R)-Azelastine N-Oxide)

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