Chemical identity

N-Nitroso Metamizole EP Impurity C

CAS 73829-38-6 · C12H14N4O2

01Identity

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

Lazychem IDLC-22059
PubChem CID126438
NameN-Nitroso Metamizole EP Impurity C
CAS RN73829-38-6
Molecular formulaC12H14N4O2
Molecular weight246.27 g/mol
IUPAC nameN-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-N-methylnitrous amide
InChIKeyPJVMURIFUSQEOU-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 126438
Two-dimensional chemical structure of N-Nitroso Metamizole EP Impurity C, CAS 73829-38-6
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 2 rings, includes aromatic atoms, includes aliphatic carbon, contains an N-nitroso substructure. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres0
Ring count2
Secondary amines0
Tertiary amines1
N-methyl amine sites1
SMILESCC1=C(C(=O)N(N1C)C2=CC=CC=C2)N(C)N=O
InChINot listed
Formula from structureC12H14N4O2
Molecular weight from structure246.27 g/mol

03India 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 73829-38-6 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 73829-38-6 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.

04Names and relationships

Associated parent compound

Metamizole

View API and impurity family

Other names

  • 1,2-Dihydro-1,5-dimethyl-4-(methylnitrosoamino)-2-phenyl-3H-pyrazol-3-one
  • 3H-Pyrazol-3-one, 1,2-dihydro-1,5-dimethyl-4-(methylnitrosoamino)-2-phenyl-
  • N-nitrosomethylaminoantipyrine

Related records from the same parent family

05Documented 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.

06Sources