theophylline
Nitrosamine Standards
- 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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[catalogue_number] => PA 20 0251005
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[weight] => 209.17
[form] => C7H7N5O3
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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
stdClass Object
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[weight] => 227.18
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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
stdClass Object
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[catalogue_number] => PA 20 0251007
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[weight] => 209.17
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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
stdClass Object
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[pname] => N-(5-Amino-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)-N-nitrosoformamide
[catalogue_number] => PA 20 0251013
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N-(5-Amino-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)-N-nitrosoformamide
Catalogue No.:PA 20 0251013
Molecular Formula : C7H9N5O4
Molecular Weight : 227.18
