Maleic Acid-impurities | Pharmaffiliates

maleic acid

Maleic acid may be used to form acid addition salts with drugs to make them more stable, such as indacaterol maleate. It is an organic compound. It is the cis-isomer of butenedioic acid. Reference standards of Maleic Acid API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

stdClass Object
(
    [pname] => Bis(2-ethylhexyl)maleate
    [catalogue_number] => PA 13 73510
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 340.5
    [form] => C20H36O4
    [cas] => 142-16-5
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PA 13 73510

Bis(2-ethylhexyl)maleate


  • Catalogue No.:PA 13 73510

  • CAS :

    142-16-5

  • Molecular Formula : C20H36O4

  • Molecular Weight : 340.5

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stdClass Object
(
    [pname] => (2Z)-2-Butenedioic Acid 1-Methyl Ester-d3
    [catalogue_number] => PA STI 016110
    [category_ids] => ,78,70,82,98,
    [chemical_name] => 
    [weight] => 133.12
    [form] => C5H3D3O4
    [cas] => 1266402-66-7
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PA STI 016110

(2Z)-2-Butenedioic Acid 1-Methyl Ester-d3


  • Catalogue No.:PA STI 016110

  • CAS :

    1266402-66-7

  • Molecular Formula : C5H3D3O4

  • Molecular Weight : 133.12

stdClass Object
(
    [pname] => 2-Ethyl-3-methylmaleic Anhydride-d3
    [catalogue_number] => PA STI 039640
    [category_ids] => ,84,78,70,82,98,
    [chemical_name] => 
    [weight] => 143.16
    [form] => C7H5D3O3
    [cas] =>  1346599-26-5
    [pslug] => 1346599-26-5-2-ethyl-3-methylmaleic-anhydride-d3-pasti039640
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PA STI 039640

2-Ethyl-3-methylmaleic Anhydride-d3


  • Catalogue No.:PA STI 039640

  • CAS :

    1346599-26-5

  • Molecular Formula : C7H5D3O3

  • Molecular Weight : 143.16

stdClass Object
(
    [pname] => 1-[4-[[2-(1-Methylethoxy)ethoxy]methyl]phenoxy]-2-[(1-methylethyl)amino]-1-methylethanol-d5 Fumarate (Bisoprolol Fumarate Impurity)
    [catalogue_number] => PA STI 059790
    [category_ids] => ,79,80,98,76,75,78,70,82,
    [chemical_name] => 
    [weight] => 446.55
    [form] => C22H30D5NO8
    [cas] => NA
    [pslug] => 1-4-2-1-methylethoxy-ethoxy-methyl-phenoxy-2-1-methylethyl-amino-1-methylethanol-d5-fumarate-bisoprolol-fumarate-impurity-pasti059790
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PA STI 059790

1-[4-[[2-(1-Methylethoxy)ethoxy]methyl]phenoxy]-2-[(1-methylethyl)amino]-1-methylethanol-d5 Fumarate (Bisoprolol Fumarate Impurity)


  • Catalogue No.:PA STI 059790

  • CAS :

    NA

  • Molecular Formula : C22H30D5NO8

  • Molecular Weight : 446.55

stdClass Object
(
    [pname] => Maleic Acid Monomethyl Ester
    [catalogue_number] => PA 13 0731000
    [category_ids] => 82,78,76,75
    [chemical_name] => 
    [weight] => 130.1
    [form] => C5H6O4
    [cas] => 3052-50-4
    [pslug] => 3052-50-4-maleic-acid-monomethyl-ester-pa130731000
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PA 13 0731000

Maleic Acid Monomethyl Ester


  • Catalogue No.:PA 13 0731000

  • CAS :

    3052-50-4

  • Molecular Formula : C5H6O4

  • Molecular Weight : 130.1