levetiracetam

Impurities - It is a biologically active (S)-enantiomer of Etiracetam which is used in the treatment of epilepsy. It is an effective medicine in treating other psychiatric and neurologic conditions. Reference standards of Levetiracetam API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

stdClass Object
(
    [pname] => Levetiracetam - Impurity G (Freebase)
    [catalogue_number] => PA 12 10070
    [category_ids] => ,92,75,
    [chemical_name] => 
    [weight] => 102.13
    [form] => C4H10N2O
    [cas] => 7324-11-0
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PA 12 10070
PA 12 10070

Levetiracetam - Impurity G (Freebase)


  • Catalogue No.:PA 12 10070

  • CAS :

    7324-11-0

  • Molecular Formula : C4H10N2O

  • Molecular Weight : 102.13

stdClass Object
(
    [pname] => 2,4-Dichlorobutanoyl Chloride
    [catalogue_number] => PA 12 0101000
    [category_ids] => ,75,76,78,82,
    [chemical_name] => 
    [weight] => 175.43
    [form] => C4H5Cl3O
    [cas] => 79194-54-0
    [pslug] => 79194-54-0-2-4-dichlorobutanoyl-chloride-pa120101000
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PA 12 0101000
PA 12 0101000

2,4-Dichlorobutanoyl Chloride


  • Catalogue No.:PA 12 0101000

  • CAS :

    79194-54-0

  • Molecular Formula : C4H5Cl3O

  • Molecular Weight : 175.43

stdClass Object
(
    [pname] => (R)-N-((R)-1-Amino-1-oxobutan-2-yl)-3-((((S)-1-amino-1-oxobutan-2-yl)amino)methyl)hexanamide
    [catalogue_number] => PA 12 0101001
    [category_ids] => ,75,76,78,82,
    [chemical_name] => 
    [weight] => 314.43
    [form] => C15H30N4O3
    [cas] => NA
    [pslug] => -r-n-r-1-amino-1-oxobutan-2-yl-3-s-1-amino-1-oxobutan-2-yl-amino-methyl-hexanamide-pa120101001
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PA 12 0101001
PA 12 0101001

(R)-N-((R)-1-Amino-1-oxobutan-2-yl)-3-((((S)-1-amino-1-oxobutan-2-yl)amino)methyl)hexanamide


  • Catalogue No.:PA 12 0101001

  • CAS :

    NA

  • Molecular Formula : C15H30N4O3

  • Molecular Weight : 314.43

stdClass Object
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    [pname] => (Z)-2-(2-Oxopyrrolidin-1-yl)but-2-enoic Acid
    [catalogue_number] => PAI 12 010001
    [category_ids] => ,78,75,70,76,82,
    [chemical_name] => 
    [weight] => 169.18
    [form] => C8H11NO3
    [cas] => 358629-39-7
    [pslug] => 358629-39-7-z-2-2-oxopyrrolidin-1-yl-but-2-enoic-acid-pai12010001
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PAI 12 010001
PAI 12 010001

(Z)-2-(2-Oxopyrrolidin-1-yl)but-2-enoic Acid


  • Catalogue No.:PAI 12 010001

  • CAS :

    358629-39-7

  • Molecular Formula : C8H11NO3

  • Molecular Weight : 169.18

stdClass Object
(
    [pname] => L-Aminobutyric Acid
    [catalogue_number] => PA 12 0101002
    [category_ids] => ,70,75,76,78,82,97,
    [chemical_name] => 
    [weight] => 103.12
    [form] => C4H9NO2
    [cas] => 1492-24-6
    [pslug] => 1492-24-6-l-aminobutyric-acid-pa120101002
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PA 12 0101002
PA 12 0101002

L-Aminobutyric Acid


  • Catalogue No.:PA 12 0101002

  • CAS :

    1492-24-6

  • Molecular Formula : C4H9NO2

  • Molecular Weight : 103.12

stdClass Object
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    [pname] => 4-Chlorobutanoyl Chloride
    [catalogue_number] => PA 12 0101003
    [category_ids] => ,78,75,70,76,82,
    [chemical_name] => 
    [weight] => 140.99
    [form] => C4H6Cl2O
    [cas] => 4635-59-0
    [pslug] => 4635-59-0-4-chlorobutanoyl-chloride-pa120101003
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PA 12 0101003
PA 12 0101003

4-Chlorobutanoyl Chloride


  • Catalogue No.:PA 12 0101003

  • CAS :

    4635-59-0

  • Molecular Formula : C4H6Cl2O

  • Molecular Weight : 140.99

stdClass Object
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    [pname] => Ethyl (S)-2-(2-oxopyrrolidin-1-yl)butanoate
    [catalogue_number] => PA 12 0101004
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 199.25
    [form] => C10H17NO3
    [cas] => 358629-53-5
    [pslug] => 358629-53-5-ethyl-s-2-2-oxopyrrolidin-1-yl-butanoate-pa120101004
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PA 12 0101004
PA 12 0101004

Ethyl (S)-2-(2-oxopyrrolidin-1-yl)butanoate


  • Catalogue No.:PA 12 0101004

  • CAS :

    358629-53-5

  • Molecular Formula : C10H17NO3

  • Molecular Weight : 199.25

stdClass Object
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    [pname] => Isobutyl (S)-2-(2-oxopyrrolidin-1-yl)butanoate
    [catalogue_number] => PA 12 0101005
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 227.3
    [form] => C12H21NO3
    [cas] => 2273884-56-1
    [pslug] => 2273884-56-1-isobutyl-s-2-2-oxopyrrolidin-1-yl-butanoate-pa120101005
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PA 12 0101005
PA 12 0101005

Isobutyl (S)-2-(2-oxopyrrolidin-1-yl)butanoate


  • Catalogue No.:PA 12 0101005

  • CAS :

    2273884-56-1

  • Molecular Formula : C12H21NO3

  • Molecular Weight : 227.3

stdClass Object
(
    [pname] => 2-Aminobutanamide hydrochloride
    [catalogue_number] => PA 12 0101010
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 138.6
    [form] => C4H11ClN2O
    [cas] => 89603-48-5
    [pslug] => 89603-48-5-2-aminobutanamide-hydrochloride-pa120101010
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PA 12 0101010
PA 12 0101010

2-Aminobutanamide hydrochloride


  • Catalogue No.:PA 12 0101010

  • CAS :

    89603-48-5

  • Molecular Formula : C4H11ClN2O

  • Molecular Weight : 138.6

stdClass Object
(
    [pname] => (S)-2-Amino-N-((R)-1-amino-1-oxobutan-2-yl)butanamide
    [catalogue_number] => PA 12 0101006
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 187.24
    [form] => C8H17N3O2
    [cas] => 1844123-52-9
    [pslug] => 1844123-52-9-s-2-amino-n-r-1-amino-1-oxobutan-2-yl-butanamide-pa120101006
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PA 12 0101006
PA 12 0101006

(S)-2-Amino-N-((R)-1-amino-1-oxobutan-2-yl)butanamide


  • Catalogue No.:PA 12 0101006

  • CAS :

    1844123-52-9

  • Molecular Formula : C8H17N3O2

  • Molecular Weight : 187.24

stdClass Object
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    [pname] => (R)-N-(1-Amino-1-oxobutan-2-yl)-4-hydroxybutanamide
    [catalogue_number] => PA 12 0101007
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 188.23
    [form] => C8H16N2O3
    [cas] => 1847568-87-9
    [pslug] => 1847568-87-9-r-n-1-amino-1-oxobutan-2-yl-4-hydroxybutanamide-pa120101007
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PA 12 0101007
PA 12 0101007

(R)-N-(1-Amino-1-oxobutan-2-yl)-4-hydroxybutanamide


  • Catalogue No.:PA 12 0101007

  • CAS :

    1847568-87-9

  • Molecular Formula : C8H16N2O3

  • Molecular Weight : 188.23

stdClass Object
(
    [pname] => (R)-2-Amino-N-((R)-1-amino-1-oxobutan-2-yl)butanamide
    [catalogue_number] => PA 12 0101008
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 187.24
    [form] => C8H17N3O2
    [cas] => 1867585-44-1
    [pslug] => 1867585-44-1-r-2-amino-n-r-1-amino-1-oxobutan-2-yl-butanamide-pa120101008
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PA 12 0101008
PA 12 0101008

(R)-2-Amino-N-((R)-1-amino-1-oxobutan-2-yl)butanamide


  • Catalogue No.:PA 12 0101008

  • CAS :

    1867585-44-1

  • Molecular Formula : C8H17N3O2

  • Molecular Weight : 187.24

stdClass Object
(
    [pname] => (S)-N-(1-Amino-1-oxobutan-2-yl)-4-hydroxybutanamide
    [catalogue_number] => PA 12 0101009
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 188.23
    [form] => C8H16N2O3
    [cas] => 1868118-63-1
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PA 12 0101009
PA 12 0101009

(S)-N-(1-Amino-1-oxobutan-2-yl)-4-hydroxybutanamide


  • Catalogue No.:PA 12 0101009

  • CAS :

    1868118-63-1

  • Molecular Formula : C8H16N2O3

  • Molecular Weight : 188.23

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