diphenhydramine
Diphenhydramine is a first-generation antihistamine used to treat a number of conditions including allergic symptoms and itchiness, the common cold, insomnia, motion sickness, and extrapyramidal symptoms. It can also be used for insomnia, symptoms of the common cold, tremor in parkinsonism, and nausea.. Reference standards of Diphenhydramine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
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[pname] => Diphenhydramine
[catalogue_number] => PA 31 57000
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[weight] => 255.35
[form] => C17H21NO
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Catalogue No.:PA 31 57000
Molecular Formula : C17H21NO
Molecular Weight : 255.35
stdClass Object
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[pname] => Diphenhydramine - Impurity A
[catalogue_number] => PA 04 31010
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[weight] => 277.79
[form] => C16H20ClNO
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Diphenhydramine - Impurity A
Catalogue No.:PA 04 31010
Molecular Formula : C16H20ClNO
Molecular Weight : 277.79
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[catalogue_number] => PA 04 31020
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[chemical_name] =>
[weight] => 305.84
[form] => C18H24ClNO
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Diphenhydramine - Impurity B
Catalogue No.:PA 04 31020
Molecular Formula : C18H24ClNO
Molecular Weight : 305.84
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[catalogue_number] => PA 04 31030
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[weight] => 370.71
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Diphenhydramine - Impurity C (Hydrochloride Salt)
Catalogue No.:PA 04 31030
Molecular Formula : C17H21BrClNO
Molecular Weight : 370.71
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[catalogue_number] => PA 04 31040
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[weight] => 184.23
[form] => C13H12O
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Diphenhydramine - Impurity D
Catalogue No.:PA 04 31040
Molecular Formula : C13H12O
Molecular Weight : 184.23
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[catalogue_number] => PA 04 31050
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[weight] => 182.22
[form] => C13H10O
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Diphenhydramine - Impurity E
Catalogue No.:PA 04 31050
Molecular Formula : C13H10O
Molecular Weight : 182.22
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[catalogue_number] => PA 04 31510
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[chemical_name] =>
[weight] => 271.35
[form] => C17H21NO2
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Catalogue No.:PA 04 31510
Molecular Formula : C17H21NO2
Molecular Weight : 271.35
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[weight] => 350.29
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2-(Diphenylmethoxy)-N,N,N-trimethylethanaminium Bromide
Catalogue No.:PA 04 31520
Molecular Formula : C18H24BrNO
Molecular Weight : 350.29
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[weight] => 307.82
[form] => C17H22ClNO2
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Diphenhydramine N-Oxide Hydrochloride
Catalogue No.:PA 04 31530
Molecular Formula : C17H22ClNO2
Molecular Weight : 307.82
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[weight] => 255.31
[form] => C16H17NO2
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2-(Benzhydryloxy)-N-methylacetamide
Catalogue No.:PA 04 31540
Molecular Formula : C16H17NO2
Molecular Weight : 255.31
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Catalogue No.:PA 04 31550
Molecular Formula : C23H29NO8
Molecular Weight : 447.48
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[catalogue_number] => PA STI 028280
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N-Desmethyl Diphenhydramine-d3 Hydrochloride
Catalogue No.:PA STI 028280
Molecular Formula : C16H17D3ClNO
Molecular Weight : 280.81
stdClass Object
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[catalogue_number] => PA STI 035500
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Diphenhydramine-d6 N-β-D-Glucuronide
Catalogue No.:PA STI 035500
Molecular Formula : C23H23D6NO7
Molecular Weight : 437.52
stdClass Object
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[weight] => 277.39
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Diphenhydramine-d6 N-Oxide
Catalogue No.:PA STI 035510
Molecular Formula : C17H15D6NO2
Molecular Weight : 277.39
stdClass Object
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[pname] => Diphenhydramine-d5 HCl (phenyl-d5)
[catalogue_number] => PA STI 088325
[category_ids] => ,98,78,70,82,
[chemical_name] =>
[weight] => 296.85
[form] => C17H17D5ClNO
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Diphenhydramine-d5 HCl (phenyl-d5)
Catalogue No.:PA STI 088325
Molecular Formula : C17H17D5ClNO
Molecular Weight : 296.85
stdClass Object
(
[pname] => 3-(Diphenylmethoxy)-1,2-propanediol
[catalogue_number] => PA 04 0311000
[category_ids] => ,75,76,78,82,
[chemical_name] =>
[weight] => 258.32
[form] => C16H18O3
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3-(Diphenylmethoxy)-1,2-propanediol
Catalogue No.:PA 04 0311000
Molecular Formula : C16H18O3
Molecular Weight : 258.32
stdClass Object
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[weight] => 269.39
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Diphenhydramine - Impurity B
Catalogue No.:PA 04 31021
Molecular Formula : C18H23NO
Molecular Weight : 269.39
stdClass Object
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Diphenhydramine - Impurity C
Catalogue No.:PA 04 31031
Molecular Formula : C17H20BrNO
Molecular Weight : 334.26
stdClass Object
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[catalogue_number] => PA 31 0571000
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[weight] => 260.76
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2-Chloro(methylphenyl)phenylmethoxy Ethane Ether
Catalogue No.:PA 31 0571000
Molecular Formula : C16H17ClO
Molecular Weight : 260.76
stdClass Object
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[pname] => Benzhydryl Bromide
[catalogue_number] => PA 31 0571001
[category_ids] => ,75,76,78,70,82,
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[weight] => 247.14
[form] => C13H11Br
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Catalogue No.:PA 31 0571001
Molecular Formula : C13H11Br
Molecular Weight : 247.14
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Benzeneacetic acid, a-methyl-4-(1-methylethyl)-
Catalogue No.:PA 31 0571002
Molecular Formula : C12H16O2
Molecular Weight : 192.26
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4,4-Bis(diethylamino)benzophenone
Catalogue No.:PA 31 0571003
Molecular Formula : C21H28N2O
Molecular Weight : 324.47
stdClass Object
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[weight] => 431.49
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Diphenhydramine N-glucuronide
Catalogue No.:PA 31 0571004
Molecular Formula : C23H29NO7
Molecular Weight : 431.49