Category
CAS Number
STD -139755-83-2: IMP-D- 1357931-55-5
Molecular Formula
STD- C22H30N6O4S: IMP-D- C17H20N4O5S
Molecular Weight
STD- 474.58: IMP-D- 392.4
Synonym
Sildenafil (1-[[3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazin)
Sildenafil EP Impurity D (4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzene-1-sulfonic acid)
