4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzene-1-sulfonyl chloride

4-乙氧基-3-(1-甲基-7-氧代-3-丙基-6,7-二氢-1H-吡唑并[4,3-d]嘧啶-5-基)苯-1-磺酰氯

Also known as: Sildenafil chlorosulfonyl, Sildenafil Chlorosulfone Impurity, 5-(5-Chlorosulfonyl-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one, 3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-benzenesulfonyl chloride, 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonyl chloride, Benzenesulfonyl chloride, 3-(4,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-

4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzene-1-sulfonyl chloride (CAS 139756-22-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C17H19ClN4O4S and a molecular weight of 410.875 g/mol. It is also known as Sildenafil chlorosulfonyl, Sildenafil Chlorosulfone Impurity and 5-(5-Chlorosulfonyl-2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one. Key properties include a melting point of 180-182ºC, a boiling point of 621.4±65.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 329.6±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

139756-22-2

Jingsj CID

J-90080-7

Molecular Formula

C₁₇H₁₉ClN₄O₄S

Chinese Name

4-乙氧基-3-(1-甲基-7-氧代-3-丙基-6,7-二氢-1H-吡唑并[4,3-d]嘧啶-5-基)苯-1-磺酰氯

Molecular Weight

410.875 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026