139755-95-6 Pyrazole N-Demethyl Sildenafil Pyrazole N-Demethyl Sildenafil

Synonyms：1-[[3-(4,7-Dihydroxy-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methyl-piperazine
CAS Number：139755-95-6
Molecular Formula：C₂₁H₂₈N₆O₄S
Molecular Structure：
Melting point：232-234℃
Hazard Symbols:
Risk Codes：
Safety Description：