Chemical identity

Sildenafil Chlorosulfone Impurity

CAS 139756-22-2 · C17H19ClN4O4S

01Identity

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

Lazychem IDLC-28039
PubChem CID135496216
NameSildenafil Chlorosulfone Impurity
CAS RN139756-22-2
Molecular formulaC17H19ClN4O4S
Molecular weight410.88 g/mol
IUPAC name5-(5-Chlorosulfonyl-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazole[4,3-d]pyrimidine-7-one
InChIKeyRVVOSOSBFSYZDM-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 135496216
Two-dimensional chemical structure of Sildenafil Chlorosulfone Impurity, CAS 139756-22-2
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, contains at least one halogen atom. 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)S(=O)(=O)Cl)OCC)C
InChINot listed
Formula from structureC17H19ClN4O4S
Molecular weight from structure410.88 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 139756-22-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 139756-22-2 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

  • Sildenafil Chlorosulfonyl Impurity
  • 5-(5-Chlorosulfonyl-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
  • 139756-22-2
  • Sildenafil chlorosulfonyl
  • UNII-2Y70Q28MLE
  • 2Y70Q28MLE
  • Benzenesulfonyl chloride, 3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-
  • Benzenesulfonyl chloride, 3-(4,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxy-
  • RefChem:101724
  • 604-161-3
  • 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzene-1-sulfonyl chloride
  • C17H19ClN4O4S

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