Chemical identity

Sildenafil Carboxylic Acid Impurity

CAS 147676-78-6 · C18H20N4O4

01Identity

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

Lazychem IDLC-28037
PubChem CID135565085
NameSildenafil Carboxylic Acid Impurity
CAS RN147676-78-6
Molecular formulaC18H20N4O4
Molecular weight356.38
IUPAC name4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d] pyrimidin-5-yl)benzoic acid
InChIKeyUUNWDXYDLDBMRV-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 135565085
Two-dimensional chemical structure of Sildenafil Carboxylic Acid Impurity, CAS 147676-78-6
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 amines0
Tertiary amines0
N-methyl amine sites0
SMILESCCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)C(=O)O)OCC)C
InChINot listed
Formula from structureC18H20N4O4
Molecular weight from structure356.38

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 147676-78-6 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 147676-78-6 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

Sildenafil

View API and impurity family

Other names

  • Sildenafil Carboxylic Acid
  • Acetil Acid
  • 147676-78-6
  • 5-(5-Carboxy-2-ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
  • 48U6WC1H35
  • UNII-48U6WC1H35
  • 3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxybenzoic acid
  • Benzoic acid, 3-(4,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxy-
  • Benzoic acid, 3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxy-
  • RefChem:199345
  • 4-Ethoxy-3-(7-hydroxy-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzoic acid
  • Sildenafil Impurity 4

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