CAS 1391053-95-4

SILDENAFIL IMPURITY A CRS

CAS: 1391053-95-4

SILDENAFIL IMPURITY A CRS

Ref: 41-Y0001579

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, nesoi

Formula: C₂₃H₃₂N₆O₄S

Color and Shape: White Powder

Molecular weight: 488.22057

Ref: 45-1612685

5-[2-ETHOXY-5-[(4-METHYL-4-OXIDO-1-PIPERAZINYL)SULFONYL]PHENYL]-1,6-DIHYDRO-1-METHYL-3-(2-METHYLPROPYL)-7H-PYRAZOLO[4,3-D]PYRIMIDIN-7-ONE

CAS: 1391053-95-4

Formula: C₂₃H₃₂N₆O₄S

Purity: %

Color and Shape: Solid

Molecular weight: 488.6030

Ref: IN-DA009EPG

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

Ref: 4Z-S-0646

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

CAS: 1391053-95-4

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

Purity: 95%

Molecular weight: 488.61g/mol

Ref: 54-OR1074667

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

Color and Shape: Neat

Ref: 86-MM0254.30

Isobutyl Sildenafil

Controlled Product

CAS: 1391053-95-4

Applications Isobutyl Sildenafil is an impurity of Sildenafil citrate (S435000), as analogue.
References Terrett, N.K., et al.: Bio. Med. Chem. Lett., 6, 1819 (1996), Rotella, D.P., et al.: Drugs Fut., 26, 133 (2001), Kukreja, R.C., et al.: J. Mol. Cell. Cardio., 36,165 (2004),

Formula: C₂₃H₃₂N₆O₄S

Color and Shape: Neat

Molecular weight: 488.60

Ref: TR-I780650

Sildenafil EP Impurity A

CAS: 1391053-95-4

Formula: C₂₃H₃₂N₆O₄S

Molecular weight: 488.61

Ref: ST-EA-CP-S2001

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 works by inhibiting the PDE5 enzyme, which is responsible for breaking down cGMP. Tadalafil has been shown to be effective in the treatment of male erectile dysfunction and pulmonary hypertension, with few side effects. This drug is taken orally, with a meal or without one, and can be administered with or without food. To improve absorption, tadalafil should be taken at least 30 minutes before sexual activity. The dosage of tadalafil ranges from 2.5 to 20 mg, and it should not exceed 40 mg per day.

Formula: C₂₃H₃₂N₆O₄S

Purity: Min. 95%

Molecular weight: 488.6 g/mol

Ref: 3D-RFC05395