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Home/Compounds/API/Isobutyl sildenafil
C23H32N6O4S
488.6 g/mol
API

Isobutyl Sildenafil

CAS1391053-95-4
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material

Isobutyl Sildenafil is an active pharmaceutical ingredient impurity structurally related to sildenafil. It is used as a reference standard or analytical marker in pharmaceutical quality control and impurity profiling.

Reference standard in pharmaceutical impurity analysisQuality control marker for sildenafil-related compounds

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

SimilarStructure SimilarSimilarity 0.82

Sildenafil

CAS139755-83-2

pharmaceutical raw material

SimilarStructure SimilarSimilarity 0.82

Sildenafil citrate

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Referencesame scaffold

Desmethylsildenafil

CAS139755-82-1

pharmaceutical raw material

Referencesame scaffold

O-desethyl sildenafil

CAS139755-91-2

pharmaceutical raw material

Identifiers
IUPAC Name

5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-(2-methylpropyl)-6H-pyrazolo[4,5-d]pyrimidin-7-one

InChIKey

MDDMCAQUTIFYAH-UHFFFAOYSA-N

SMILES

CCOC1=C(C=C(C=C1)S(=O)(=O)N2CCN(CC2)C)C3=NC4=C(C(=O)N3)N(N=C4CC(C)C)C

Synonyms (14)
  • Sildenafil EP Impurity A
  • Despropyl isobutyl sildenafil
  • Isobutyl Sildenafil
  • SILDENAFIL CITRATE IMPURITY A
  • Sildenafil Impurity A
  • Sildenafil impurity A CRS