Allopurinol-Impurities | Pharmaffiliates

allopurinol

Allopurinol is a purine analog and it is a structural isomer of hypoxanthine. It is an inhibitor of the enzyme xanthine oxidase. Allopurinol is used to treat excess uric acid in the blood and gout. It is sold under the brand name Zyloprim. Reference standards of Allopurinol API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

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    [catalogue_number] => PA 01 39000
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    [weight] =>  136.11
    [form] => C5H4N4O
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PA 01 39000

Allopurinol - API Standards


  • Catalogue No.:PA 01 39000

  • CAS :

    315-30-0

  • Molecular Formula : C5H4N4O

  • Molecular Weight :  136.11

20% OFF
stdClass Object
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    [pname] => Allopurinol - Impurity A
    [catalogue_number] => PA 01 39010
    [category_ids] => 82,80,79,78,71,70
    [chemical_name] => 
    [weight] => 175.16
    [form] => C4H6N4O•0.5H2SO4
    [cas] => 27511-79-1
    [pslug] => 27511-79-1-allopurinol-impurity-a-pa0139010
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PA 01 39010

Allopurinol - Impurity A


  • Catalogue No.:PA 01 39010

  • CAS :

    27511-79-1

  • Molecular Formula : C4H6N4O•0.5H2SO4

  • Molecular Weight : 175.16

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    [pname] => Allopurinol - Impurity B
    [catalogue_number] => PA 01 39020
    [category_ids] => ,71,85,83,78,70,82,
    [chemical_name] => 
    [weight] => 154.13
    [form] => C5H6N4O2
    [cas] => 22407-20-1
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PA 01 39020

Allopurinol - Impurity B


  • Catalogue No.:PA 01 39020

  • CAS :

    22407-20-1

  • Molecular Formula : C5H6N4O2

  • Molecular Weight : 154.13

20% OFF
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    [pname] => Allopurinol - Impurity C
    [catalogue_number] => PA 01 39030
    [category_ids] => 80,82,78,70,71,83,85
    [chemical_name] => 
    [weight] => 178.15
    [form] => C6H6N6O
    [cas] => 1346604-13-4
    [pslug] => 1346604-13-4-allopurinol-impurity-c-pa0139030
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PA 01 39030

Allopurinol - Impurity C


  • Catalogue No.:PA 01 39030

  • CAS :

    1346604-13-4

  • Molecular Formula : C6H6N6O

  • Molecular Weight : 178.15

20% OFF
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    [pname] => Allopurinol - Impurity E
    [catalogue_number] => PA 01 39050
    [category_ids] => 85,83,71,70,78,82
    [chemical_name] => 
    [weight] => 183.16
    [form] => C7H9N3O3
    [cas] => 31055-19-3
    [pslug] => 31055-19-3-allopurinol-impurity-e-pa0139050
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PA 01 39050

Allopurinol - Impurity E


  • Catalogue No.:PA 01 39050

  • CAS :

    31055-19-3

  • Molecular Formula : C7H9N3O3

  • Molecular Weight : 183.16

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    [pname] => 3-Amino-4-cyanopyrazole
    [catalogue_number] => PA 01 39510
    [category_ids] => ,79,71,
    [chemical_name] => 
    [weight] => 108.1
    [form] => C4H4N4
    [cas] => 16617-46-2
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PA 01 39510

3-Amino-4-cyanopyrazole


  • Catalogue No.:PA 01 39510

  • CAS :

    16617-46-2

  • Molecular Formula : C4H4N4

  • Molecular Weight : 108.1

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    [pname] => Allopurinol-d2
    [catalogue_number] => PA STI 004680
    [category_ids] => ,71,85,83,78,70,82,98,
    [chemical_name] => 
    [weight] => 138.12
    [form] => C5H2D2N4O
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PA STI 004680

Allopurinol-d2


  • Catalogue No.:PA STI 004680

  • CAS :

    916979-34-5

  • Molecular Formula : C5H2D2N4O

  • Molecular Weight : 138.12

stdClass Object
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    [pname] => 4,6-Dihydroxypyrazolo[3,4-d]pyrimidine-13C,15N2
    [catalogue_number] => PA STI 033020
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    [weight] => 155.09
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PA STI 033020

4,6-Dihydroxypyrazolo[3,4-d]pyrimidine-13C,15N2


  • Catalogue No.:PA STI 033020

  • CAS :

    1217036-71-9

  • Molecular Formula : C413CH4N215N2O2

  • Molecular Weight : 155.09