Chemical identity

Sildenafil N-Ethyl Impurity

CAS 642928-07-2 · C23H32N6O4S

01Identity

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

Lazychem IDLC-28065
PubChem CID135565273
NameSildenafil N-Ethyl Impurity
CAS RN642928-07-2
Molecular formulaC23H32N6O4S
Molecular weight488.6
IUPAC name5-[2-Ethoxy-5-(4-ethylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[5,4-e]pyrimidin-7-one
InChIKeyMJEXYQIZUOHDGY-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 135565273
Two-dimensional chemical structure of Sildenafil N-Ethyl Impurity, CAS 642928-07-2
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. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres0
Ring count4
Secondary amines0
Tertiary amines1
N-methyl amine sites0
SMILESCCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCN(CC4)CC)OCC)C
InChINot listed
Formula from structureC23H32N6O4S
Molecular weight from structure488.6

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 642928-07-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 642928-07-2 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.

04Names and relationships

Associated parent compound

Sildenafil

View API and impurity family

Other names

  • Homosildenafil
  • 642928-07-2
  • 0Z3JH0S0QK
  • DTXSID10214510
  • RefChem:146772
  • DTXCID40137001
  • 5-(2-Ethoxy-5-((4-ethylpiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
  • CHEMBL3769434
  • 5-[2-ethoxy-5-(4-ethylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-7-one
  • UNII-0Z3JH0S0QK
  • 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-[2-ethoxy-5-[(4-ethyl-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-
  • Piperazine, 1-[[3-(4,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-ethyl- (9CI)

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