Additional information
Appearance
White Powder
Category
Pharmaceutical Impurity Standards
CAS No.
139755-82-1
Catalogue No.
ACI-190301
Chemical Name
1-[[3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1Hpyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy phenyl]sulfonyl]piperazine (Piperazine Desmethylsildenafil)
IUPAC Name
N-[3-(6,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxybenzene-1-sulfonyl]piperazine
Melting Point
150.0-150.4°C
Molecular Formula
C21H28N6O4S
Molecular Weight
460.55
Shipping Condition
Ambient
Storage Condition
2-8°C
Synonyms
N-Desmethyl Sildenafil
Therapeutic Category
Phosphodiesterase-5 inhibitor
