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

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

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Origin: China

Cas No: 139756-22-2

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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    CAS No.: 139756-22-2 Formula: C17H19ClN4O4S Molecular Weight: 410.87500
     

    Description

    Sildenafil derivative.
     

    Basic Info

    Chemical Name 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonyl chloride
    Synonyms

    4-ethoxy-3-(1-methyl-7-oxo-3-propyl-4H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonyl chloride;
    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-ethoxy-3-(1-methyl-7-oxo-3-propyl-4,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonyl chloride;
    Sildenafil Chlorosulfonyl;

    CAS No. 139756-22-2
    Molecular Formula C17H19ClN4O4S
    Molecular Weight 410.87500
    PSA 115.32000
    LogP 3.68310
     

    Properties

    Appearance & Physical State Off-White to Pale Beige Solid
    Density 1.48g/cm3
    Boiling Point 621.4ºC at 760 mmHg
    Melting Point 180-182ºC
    Flash Point 329.6ºC
    Refractive Index 1.663
    Vapor Pressure 2.29E-15mmHg at 25°C
     

    Safety Info

    HS Code 2933990090
     

    Synthesis Route

    5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one→4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonyl chloride
     

    Precursor

    5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
     

    Downstream Product

    5-[2-ethoxy-5-[4-(2-hydroxyethyl)piperazin-1-yl]sulfonylphenyl]-1-methyl-3-propyl-4H-pyrazolo[4,3-d]pyrimidin-7-one
    sildenafil
    Homo Sildenafil

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