theophylline
Impurities
- 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.
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[pname] => Theophylline - Impurity C
[catalogue_number] => PA 20 25030
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[weight] => 198.18
[form] => C7H10N4O3
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Theophylline - Impurity C
Catalogue No.:PA 20 25030
Molecular Formula : C7H10N4O3
Molecular Weight : 198.18
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[catalogue_number] => PA 20 25050
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[weight] => 196.16
[form] => C7H8N4O3
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Theophylline - Impurity E
Catalogue No.:PA 20 25050
Molecular Formula : C7H8N4O3
Molecular Weight : 196.16
stdClass Object
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[pname] => 1-Methyl Xanthine
[catalogue_number] => PA 20 25510
[category_ids] => ,71,76,75,85,83,
[chemical_name] =>
[weight] => 166.14
[form] => C6H6N4O2
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Catalogue No.:PA 20 25510
Molecular Formula : C6H6N4O2
Molecular Weight : 166.14
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[pname] => 7-Methyl Xanthine
[catalogue_number] => PA 20 25520
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[form] => C6H6N4O2
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Catalogue No.:PA 20 25520
Molecular Formula : C6H6N4O2
Molecular Weight : 166.14
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[catalogue_number] => PA 20 25540
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Catalogue No.:PA 20 25540
Molecular Formula : C6H6N4O3
Molecular Weight : 182.14
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[catalogue_number] => PA STI 064800
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[weight] => 185.16
[form] => C6H3D3N4O3
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Catalogue No.:PA STI 064800
Molecular Formula : C6H3D3N4O3
Molecular Weight : 185.16
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[pname] => 1-Bromoethyl Acetate
[catalogue_number] => PA 20 0251000
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[weight] => 167
[form] => C4H7BrO2
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[pname] => Ethyl (Z)-3-acetoxybut-2-enoate
[catalogue_number] => PA 20 0251002
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[chemical_name] =>
[weight] => 172.18
[form] => C8H12O4
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Ethyl (Z)-3-acetoxybut-2-enoate
Catalogue No.:PA 20 0251002
Molecular Formula : C8H12O4
Molecular Weight : 172.18
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1,3-Dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purine-8-sulfonic Acid
Catalogue No.:PA 20 0251004
Molecular Formula : C7H8N4O5S
Molecular Weight : 260.22
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1,3-Dimethyl-9-nitroso-3,9-dihydro-1H-purine-2,6-dione
Catalogue No.:PA 20 0251005
Molecular Formula : C7H7N5O3
Molecular Weight : 209.17
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N-(6-Amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-N-nitrosoformamide
Catalogue No.:PA 20 0251006
Molecular Formula : C7H9N5O4
Molecular Weight : 227.18
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1,3-Dimethyl-7-nitroso-3,7-dihydro-1H-purine-2,6-dione
Catalogue No.:PA 20 0251007
Molecular Formula : C7H7N5O3
Molecular Weight : 209.17
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[catalogue_number] => PA 20 0251010
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[weight] => 196.17
[form] => C7H8N4O3
[cas] => 33868-03-0
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Catalogue No.:PA 20 0251010
Molecular Formula : C7H8N4O3
Molecular Weight : 196.17
