Chemical identity

Phenazone EP Impurity A

CAS 89-25-8 · C10H10N2O

01Identity

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

Lazychem IDLC-25045
PubChem CID4021
NamePhenazone EP Impurity A
CAS RN89-25-8
Molecular formulaC10H10N2O
Molecular weight174.2 g/mol
IUPAC name3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one
InChIKeyQELUYTUMUWHWMC-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 4021
Two-dimensional chemical structure of Phenazone EP Impurity A, CAS 89-25-8
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. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres0
Ring count2
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC1=NN(C(=O)C1)C2=CC=CC=C2
InChINot listed
Formula from structureC10H10N2O
Molecular weight from structure174.2 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 89-25-8 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 89-25-8 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

Phenazone

View API and impurity family

Other names

  • Edaravone
  • 2,4-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one
  • 1-Phenyl-3-methyl-1H-4,5-dihydropyrazol-5-one
  • Methylphenylpyrazolone
  • Norantipyrine
  • Norphenazone
  • Radicut
  • USP Antipyrine Related Compound A
  • Mci-186
  • RefChem:57584
  • 89-25-8
  • 3-METHYL-1-PHENYL-2-PYRAZOLIN-5-ONE

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