1-[[3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]piperazine (Desmethylsildenafil)
Product Code
MM0254.08
CAS Number
EP Description
Sildenafil Citrate Impurity F
Product Format
Neat
Molecular Formula
C21 H28 N6 O4 S
Molecular Weight
460.55
API Family
Sildenafil CitrateProduct Categories
Impurity Reference Materials , Erectile dysfunction drugs, Mikromol
Product Type
ImpurityDocumentation
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Product Information
Analyte Data
Analyte Name
Desmethylsildenafil (1-[(3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl)sulfonyl]piperazine)
CAS Number
139755-82-1
Molecular Formula
C21 H28 N6 O4 S
Molecular Weight
460.55
Accurate Mass
460.1893
SMILES
CCCc1nn(C)c2C(=O)NC(=Nc12)c3cc(ccc3OCC)S(=O)(=O)N4CCNCC4
InChI
InChI=1S/C21H28N6O4S/c1-4-6-16-18-19(26(3)25-16)21(28)24-20(23-18)15-13-14(7-8-17(15)31-5-2)32(29,30)27-11-9-22-10-12-27/h7-8,13,22H,4-6,9-12H2,1-3H3,(H,23,24,28)
IUPAC
5-(2-ethoxy-5-piperazin-1-ylsulfonylphenyl)-1-methyl-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-7-one
Product Data
Storage Temperature
+5°C
Shipping Temperature
Room Temperature
Country of Origin
GERMANY
Tariff Code
29335995
Product Type
Impurity
Product Format
Neat
API Family
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