Chemical identity

Sildenafil EP Impurity B

CAS 1094598-75-0 · C22H30N6O5S

01Identity

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

Lazychem IDLC-28043
PubChem CID135565954
NameSildenafil EP Impurity B
CAS RN1094598-75-0
Molecular formulaC22H30N6O5S
Molecular weight490.58 g/mol
IUPAC name1-Methyl-4-[4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzene-1-sulfonyl]piperazine 1-oxide
InChIKeyJQGFLCMKCZPSEC-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 135565954
Two-dimensional chemical structure of Sildenafil EP Impurity B, CAS 1094598-75-0
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 amines0
N-methyl amine sites0
SMILESO=C1C(N(C)N=C2CCC)=C2N=C(C3=CC(S(=O)(N4CC[N+]([O-])(C)CC4)=O)=CC=C3OCC)N1
InChINot listed
Formula from structureC22H30N6O5S
Molecular weight from structure490.58 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 1094598-75-0 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 1094598-75-0 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

  • 4-(4-ethoxy-3-{1-methyl-7-oxo-3-propyl-1H,6H,7H-pyrazolo[4,3-d]pyrimidin-5-yl}benzenesulfonyl)-1-methylpiperazin-1-ium-1-olate
  • 7H-Pyrazolo(4,3-d)pyrimidin-7-one, 5-(2-ethoxy-5-((4-methyl-4-oxido-1-piperazinyl)sulfonyl)phenyl)-1,6-dihydro-1-methyl-3-propyl
  • 1-{[3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl}-4-methylpiperazine N4-oxide
  • Sildenafil N-Oxide

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