Chemical identity

Promazine Impurity II

CAS 2095-20-7 · C16H18N2S

01Identity

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

Lazychem IDLC-32390
PubChem CID28315
NamePromazine Impurity II
CAS RN2095-20-7
Molecular formulaC16H18N2S
Molecular weight270.39 g/mol
IUPAC nameN-methyl-3-(10H-phenothiazin-10-yl)propan-1-amine
InChIKeyWOCOVPRTRIBGFZ-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 28315
Two-dimensional chemical structure of Promazine Impurity II, CAS 2095-20-7
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 stereocentres0
Ring count3
Secondary amines1
Tertiary amines1
N-methyl amine sites0
SMILESCNCCCN1C2=C(C=CC=C2)SC3=CC=CC=C13
InChINot listed
Formula from structureC16H18N2S
Molecular weight from structure270.39 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 Promazine Impurity II 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 Promazine Impurity II, 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
C16H17N3OS
Candidate SMILES
CN(CCCN1c2ccccc2Sc2ccccc21)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 2095-20-7 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 2095-20-7 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.

05Names and relationships

Associated parent compound

Promazine

View API and impurity family

Other names

  • Desmonomethylpromazine
  • Promazine Desmethyl
  • N-Desmethylpromazine
  • 10H-Phenothiazine-10-propanamine, N-methyl
  • 10-(3-methylaminopropyl)phenothiazine

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