Chemical identity

OXOMEMAZINE

CAS 3689-50-7 · C18H22N2O2S

01Identity

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

Lazychem IDLC-101139
PubChem CID19396
NameOXOMEMAZINE
CAS RN3689-50-7
Molecular formulaC18H22N2O2S
Molecular weight330.4 g/mol
IUPAC name3-(5,5-dioxophenothiazin-10-yl)-N,N,2-trimethylpropan-1-amine
InChIKeyQTQPVLDZQVPLGV-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 19396
Two-dimensional chemical structure of OXOMEMAZINE, CAS 3689-50-7
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. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres1
Ring count3
Secondary amines0
Tertiary amines2
N-methyl amine sites2
SMILESCC(CN1C2=CC=CC=C2S(=O)(=O)C3=CC=CC=C31)CN(C)C
InChINot listed
Formula from structureC18H22N2O2S
Molecular weight from structure330.4 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.

04Possible 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 OXOMEMAZINE 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 OXOMEMAZINE, 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
C17H19N3O3S
Candidate SMILES
CC(CN(C)N=O)CN1c2ccccc2S(=O)(=O)c2ccccc21

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.

05India 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 3689-50-7 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 3689-50-7 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.

06Names and relationships

Associated parent compound

No parent compound is listed.

Other names

  • Oxomemazine
  • 3689-50-7
  • Dysedon
  • Doxergan
  • Imakol
  • Oxomemazina
  • Oxomemazinum
  • Oplex
  • Exe-top
  • Trimeprazine 5,5-dioxide
  • RP 6847
  • 305MB38V1C

Related records from the same parent family

No related records are linked by parent name.

07Documented 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.

08Sources