Additional information
Appearance
Off-white Powder
Category
Pharmaceutical Impurity Standards
CAS No.
139755-83-2
Catalogue No.
ACI-190323
Chemical Name
1-[[3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy phenyl]sulfonyl]-4-methylpiperazine (Sildenafil free base)
IUPAC Name
5-[2-Ethoxy-5-(4-methyl-1-piperazinylsulfonyl)phenyl]-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
Melting Point
195.9-198.6°C
Molecular Formula
C22H30N6O4S
Molecular Weight
474.58
Shipping Condition
Ambient
Storage Condition
2-8°C
Synonyms
Sildenafil free base
Therapeutic Category
Phosphodiesterase-5 inhibitor
