Theophylline-impurities | Pharmaffiliates

theophylline

A methyl xanthine derivative, Theophylline is used in the treatment of chronic obstructive pulmonary disease (COPD) and asthma .A competitive nonselective phosphodiesterase inhibitor, Theohylline is found naturally in cocoa plant.Reference standards of Theophylline API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

stdClass Object
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    [pname] => 1,3-Dimethyl-9-nitroso-3,9-dihydro-1H-purine-2,6-dione
    [catalogue_number] => PA 20 0251005
    [category_ids] => ,70,75,76,78,82,162,
    [chemical_name] => 
    [weight] => 209.17
    [form] => C7H7N5O3
    [cas] => NA
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PA 20 0251005

1,3-Dimethyl-9-nitroso-3,9-dihydro-1H-purine-2,6-dione


  • Catalogue No.:PA 20 0251005

  • CAS :

    NA

  • Molecular Formula : C7H7N5O3

  • Molecular Weight : 209.17

stdClass Object
(
    [pname] => N-(6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-N-nitrosoformamide
    [catalogue_number] => PA 20 0251006
    [category_ids] => ,70,75,76,78,82,162,
    [chemical_name] => 
    [weight] => 227.18
    [form] => C7H9N5O4
    [cas] => NA
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PA 20 0251006

N-(6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-N-nitrosoformamide


  • Catalogue No.:PA 20 0251006

  • CAS :

    NA

  • Molecular Formula : C7H9N5O4

  • Molecular Weight : 227.18

stdClass Object
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    [pname] => 1,3-Dimethyl-7-nitroso-3,7-dihydro-1H-purine-2,6-dione
    [catalogue_number] => PA 20 0251007
    [category_ids] => ,70,75,76,78,82,162,
    [chemical_name] => 
    [weight] => 209.17
    [form] => C7H7N5O3
    [cas] => NA
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PA 20 0251007

1,3-Dimethyl-7-nitroso-3,7-dihydro-1H-purine-2,6-dione


  • Catalogue No.:PA 20 0251007

  • CAS :

    NA

  • Molecular Formula : C7H7N5O3

  • Molecular Weight : 209.17