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

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stdClass Object
(
    [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

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stdClass Object
(
    [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

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    [pname] => Allopurinol - Impurity A (Freebase)
    [catalogue_number] => PA 01 39011
    [category_ids] => ,79,75,78,70,82,
    [chemical_name] => 
    [weight] => 126.12
    [form] => C4H6N4O
    [cas] => 5334-31-6
    [pslug] => 5334-31-6-allopurinol-impurity-a-freebase-pa0139011
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PA 01 39011

Allopurinol - Impurity A (Freebase)


  • Catalogue No.:PA 01 39011

  • CAS :

    5334-31-6

  • Molecular Formula : C4H6N4O

  • Molecular Weight : 126.12

stdClass Object
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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] => Allopurinol-d2
    [catalogue_number] => PA STI 004680
    [category_ids] => ,71,85,83,78,70,82,98,
    [chemical_name] => 
    [weight] => 138.12
    [form] => C5H2D2N4O
    [cas] => 916979-34-5
    [pslug] => 916979-34-5-allopurinol-d2-pasti004680
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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
    [category_ids] => ,71,76,75,85,83,78,70,82,98,
    [chemical_name] => 
    [weight] => 155.09
    [form] => C413CH4N215N2O2
    [cas] => 1217036-71-9
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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

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    [pname] => Allopurinol riboside
    [catalogue_number] => PA 01 39530
    [category_ids] => ,78,70,82,
    [chemical_name] => 
    [weight] => 268.23
    [form] => C10H12N4O5
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PA 01 39530

Allopurinol riboside


  • Catalogue No.:PA 01 39530

  • CAS :

    16220-07-8

  • Molecular Formula : C10H12N4O5

  • Molecular Weight : 268.23

stdClass Object
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    [pname] => Oxypurinol
    [catalogue_number] => PA 01 0391000
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 152.11
    [form] => C5H4N4O2
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PA 01 0391000

Oxypurinol


  • Catalogue No.:PA 01 0391000

  • CAS :

    2465-59-0

  • Molecular Formula : C5H4N4O2

  • Molecular Weight : 152.11

stdClass Object
(
    [pname] => (E/Z)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-Pyrazole-4-carboxylic Acid Ethyl Ester
    [catalogue_number] => PA 01 0391001
    [category_ids] => 76,70,75,78,82
    [chemical_name] => 
    [weight] => 278.26
    [form] => C12H14N4O4
    [cas] => 321571-07-7
    [pslug] => 321571-07-7-e-z-3-2-cyano-3-ethoxy-3-oxo-1-propenyl-amino-1h-pyrazole-4-carboxylic-acid-ethyl-ester-pa010391001
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PA 01 0391001

(E/Z)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-Pyrazole-4-carboxylic Acid Ethyl Ester


  • Catalogue No.:PA 01 0391001

  • CAS :

    321571-07-7

  • Molecular Formula : C12H14N4O4

  • Molecular Weight : 278.26

stdClass Object
(
    [pname] => Allopurinol Impurity A (IMP/03/17)
    [catalogue_number] => PA IMP 03 17
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => NA
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Allopurinol Impurity A (IMP/03/17)


  • Catalogue No.:PA IMP 03 17

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

stdClass Object
(
    [pname] => N-Nitroso Allopurinol
    [catalogue_number] => PA 01 0391002
    [category_ids] => ,70,75,76,78,82,162,
    [chemical_name] => 
    [weight] => 165.11
    [form] => C5H3N5O2
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PA 01 0391002

N-Nitroso Allopurinol


  • Catalogue No.:PA 01 0391002

  • CAS :

    NA

  • Molecular Formula : C5H3N5O2

  • Molecular Weight : 165.11

stdClass Object
(
    [pname] => 9-Nitroso-9H-purin-6-ol
    [catalogue_number] => PA 01 0391003
    [category_ids] => ,70,75,76,78,82,162,
    [chemical_name] => 
    [weight] => 165.11
    [form] => C5H3N5O2
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PA 01 0391003

9-Nitroso-9H-purin-6-ol


  • Catalogue No.:PA 01 0391003

  • CAS :

    NA

  • Molecular Formula : C5H3N5O2

  • Molecular Weight : 165.11