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7H-Pyrazolo[4,3-d]pyrimidin-7-one,5-[2-ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl- (Molecular Formula: C21H28 N6 O4 S)

Product Name: 7H-Pyrazolo[4,3-d]pyrimidin-7-one,5-[2-ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl-
CAS Registry Number: 139755-82-1
Synonyms: Piperazine,1-[[3-(4,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-(9CI); UK 103320;7H-Pyrazolo[4,3-d]pyrimidin-7-one,5-[2-ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl-;Desmethylsildenafil; 1H-Pyrazolo[4,3-d]pyrimidine, piperazine deriv.;5-[2-Ethoxy-5-(piperazin-1-ylsulfonyl)phenyl]-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one; N-Desmethylsildenafil; N-Demethylsildenafil;
Molecular Structure:
Molecular Formula: C21H28 N6 O4 S
Molecular Weight: 460.55
Density:  1.44g/cm3
Boiling Point:  685.7°C at 760 mmHg
Melting Point:  158-160°C
Refractive index:  1.683

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