CAS: 1391053-95-4

Sildenafil impurity A CRS

CAS: 1391053-95-4

Sildenafil Related Compound A (1-{[3-(6,7-Dihydro-1-methyl-7-oxo-3-isobutyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl}-4-methylpiperazine)

CAS: 1391053-95-4

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, …

• Formula: C₂₃H₃₂N₆O₄S
• Color and Shape: White Powder
• Molecular weight: 488.22057

Sildenafil EP Impurity A (Sildenafil USP Related Compound A, Isobutyl Sildenafil)

CAS: 1391053-95-4

• Formula: C₂₃H₃₂N₆O₄S
• Color and Shape: White To Off-White Solid
• Molecular weight: 488.61

5-[2-Ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl]-1-methyl-3-(2-methylpropyl)-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

CAS: 1391053-95-4

• Formula: C₂₃H₃₂N₆O₄S
• Color and Shape: White Solid
• Molecular weight: 488.60

Isobutyl Sildenafil

CAS: 1391053-95-4

Applications Isobutyl Sildenafil is an impurity of Sildenafil citrate (S435000), as analogue. References Terrett, N.K., …

• Formula: C₂₃H₃₂N₆O₄S
• Color and Shape: Neat
• Molecular weight: 488.60

5-{2-Ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl}-1-methyl-3-(2-methylpropyl)-1H,6H,7H-pyrazolo[4,3-d]pyrimidin-7-one

CAS: 1391053-95-4

Tadalafil is a synthetic drug that is used as a treatment for erectile dysfunction. It …

• Formula: C₂₃H₃₂N₆O₄S
• Purity: Min. 95%
• Molecular weight: 488.6 g/mol