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Pharmaceutical Reference Standards

USP - United States Pharmacopeia Pharmaceutical Analytical Impurities

1527 products found

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USP-1A02690

E-Cefepime (1-({(6R,7R)-7-[(E)-2-(2-Aminothiazol-4-yl)-2-(methoxyimino)acetamido]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl}methyl)-1-methylpyrrolidinium chloride)

Item no.

USP-1A02690

Unit

25 mg

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USP-1A03270

Cyanocobalamin 7Beta,8Beta-lactone (Coalpha-[alpha-(5,6-dimethylbenzimidazolyl)]-CoBeta-cyano-8Beta-hydroxycobamic a,b,d,e,g-pentaamide c,8-gamma-lactone)

Item no.

USP-1A03270

Unit

25 mg

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USP-1A03360

N-Methyl Varenicline (7,8,9,10-tetrahydro-8-methyl-6,10-Methano-6H-pyrazino[2,3-h][3]benzazepine)

Item no.

USP-1A03360

Unit

25 mg

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USP-1A03380

5-Hydroxy Lenalidomide (3-(4-amino-5-hydroxy-1-oxoisoindolin-2-yl)piperidine-2,6-dione)

Item no.

USP-1A03380

Unit

25 mg

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USP-1A03430

Anhydro Abiraterone (3-((8R,9S,10R,13S,14S)-10,13-dimethyl-2,7,8,9,10,11,12,13,14,15-decahydro-1H-cyclopenta[a]phenanthren-17-yl)pyridine, 17-(Pyridin-3-yl)androsta-3,5,16-triene)

Item no.

USP-1A03430

Unit

25 mg

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USP-1A03440

Abiraterone Ethyl Ether (3-((3S,8R,9S,10R,13S,14S)-3-ethoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)pyridine)

Item no.

USP-1A03440

Unit

25 mg

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USP-1A03450

Abiraterone Isopropyl Ether (3-((3S,8R,9S,10R,13S,14S)-3-isopropoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)pyridine, 3beta-Isopropoxy-17-(pyridin-3-yl)androsta-5,16-diene)

Item no.

USP-1A03450

Unit

25 mg

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USP-1A03530

3-Deoxy 3-Chloroabiraterone (3Beta-Chloro-17-(pyridin-3-yl)androsta-5,16-diene)

Item no.

USP-1A03530

Unit

25 mg

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USP-1A03580

6-Keto Fulvestrant ((7Alpha,17Beta)-7-[9-[4,4,5,5,5-pentafluoropentyl)sulfinyl]nonyl]-3,17Beta-dihydroxyestra-1,3,5(10)-trien-6-one, 7Alpha-{9-[(4,4,5,5,5,-Pentafluoropentyl)sulfinyl]nonyl}estra-1,3,5(10)-triene-6-one-3,17Beta-diol)

Item no.

USP-1A03580

Unit

25 mg

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USP-1A03590

5-Chloro Hydrochlorothiazide (5,6-dichloro-3,4-dihydro-2H-benzo[e][1,2,4]thiadiazine-7-sulfonamide 1,1-dioxide)

Item no.

USP-1A03590

CAS Number

[5233-42-1]

Unit

25 mg

Molecular formula

C7H7Cl2N3O4S2

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USP-1A03670

Fulvestrant sulfone ((7R,8R,9S,13S,14S,17S)-13-methyl-7-(9-((4,4,5,5,5-pentafluoropentyl)sulfonyl)nonyl)7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol)

Item no.

USP-1A03670

Unit

25 mg

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USP-1A03730

Dabigatran Etexilate Acid (3-(2-(((4-(N-((hexyloxy)carbonyl)carbamimidoyl)phenyl)amino)methyl)-1-methyl-N-(pyridin-2-yl)-1H-benzo[d]imidazole-5-carboxamido)propanoic acid)

Item no.

USP-1A03730

Unit

25 mg

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USP-1A03750

Dabigatran Heptane-2-yl Analog (ethyl 3-(2-(((4-(N-((heptan-2-yloxy)carbonyl)carbamimidoyl)phenyl)amino)methyl)-1-methyl-N-(pyridin-2-yl)-1H-benzo[d]imidazole-5-carboxamido)propanoate)

Item no.

USP-1A03750

Unit

25 mg

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USP-1A03930

N-Nitrosodipropylamine (NDPA) Solution (1 mg/mL in Methanol) (N,N-dipropylnitrous amide)

Item no.

USP-1A03930

Unit

1 mL

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USP-1A04400

N-Nitrosoiminodiacetic acid (2,2'-(nitrosoazanediyl)diacetic acid)

Item no.

USP-1A04400

Unit

10 mg

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USP-1A05210

N-Nitroso Mefenamic Acid (2-((2,3-Dimethylphenyl)(nitroso)amino)benzoic acid)

Item no.

USP-1A05210

Unit

25 mg

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USP-1A05850

Epinine Hydroiodide (4-(2-(Methylamino)ethyl)benzene-1,2-diol hydroiodide)

Item no.

USP-1A05850

Unit

25 mg

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USP-1A05940

3-Chloro Sulfamethoxazole (4-amino-3-chloro-N-(5-methylisoxazol-3-yl)benzenesulfonamide)

Item no.

USP-1A05940

Unit

25 mg

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USP-1A06120

ortho-Leflunomide (5-Methyl-N-(2-(trifluoromethyl)phenyl)isoxazole-4-carboxamide)

Item no.

USP-1A06120

Unit

25 mg

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USP-1A06130

Rosuvastatin Ethyl Ester

Item no.

USP-1A06130

CAS Number

[851443-04-4]

Unit

25 mg

Molecular formula

C24H32FN3O6S

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USP-1A06220

N-Formyl Docetaxel

Item no.

USP-1A06220

Unit

25 mg

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USP-1A06420

11Beta-Epoxydexamethasone (9,11Beta-Epoxy-17,21-dihydroxy-16alpha-methylpregna-1,4-diene-3,20-dione)

Item no.

USP-1A06420

Unit

25 mg

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USP-1A06470

4-Chloro Bupropion Hydrochloride (2-(tert-Butylamino)-1-(3,4-dichlorophenyl)propan-1-one hydrochloride)

Item no.

USP-1A06470

Unit

25 mg

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USP-1A06520

5-Formyl-5,6,7,8-tetrahydropteroic acid (4-(((2-amino-5-formyl-4-oxo-1,4,5,6,7,8-hexahydropteridin-6-yl)methyl)amino)benzoic acid)

Item no.

USP-1A06520

Unit

10 mg

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USP-1A06540

Memantine lactose adduct ((2S,3R,4S,5R,6R)-2-(((2R,3S,4R,5R,6R)-6-(((1r,3R,5S,7r)-3,5-dimethyladamantan-1-yl)amino)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol)

Item no.

USP-1A06540

Unit

25 mg

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USP-1A06560

Piperacillin penilloic acid ((4S)-2-[[[(2R)-2-[[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]-2-phenylacetyl]amino]methyl]-5,5-dimethyl-4-thiazolidinecarboxylic acid)

Item no.

USP-1A06560

CAS Number

[2649505-15-5]

Unit

10 mg

Molecular formula

C22H29N5O6S

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USP-1A06790

Desmethyl Ipratropium ((1R,3r,5S)-8-Isopropyl-8-azabicyclo[3.2.1]octan-3-yl 3-hydroxy-2-phenylpropanoate)

Item no.

USP-1A06790

CAS Number

[22235-81-0]

Unit

25 mg

Molecular formula

C19H27NO3

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USP-1A06840

Mycophenolate Mofetil N-Oxide (2-Morpholinoethyl (E)-6-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-hexenoate N-oxide)

Item no.

USP-1A06840

Unit

25 mg

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USP-1A06890

Hexyl Undecyl Pyranone ((S)-3-Hexyl-6-undecyl-5,6-dihydro-2H-pyran-2-one)

Item no.

USP-1A06890

Unit

25 mg

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USP-1A07050

Ezetimibe meta-Fluoroaniline isomer ((3R,4S)-1-(3-Fluorophenyl)-3-[(3S)-3-(4-fluorophenyl)-3-hydroxypropyl]-4-(4-hydroxyphenyl)-2-azetidinone)

Item no.

USP-1A07050

CAS Number

[1700622-06-5]

Unit

25 mg

Molecular formula

C24H21F2NO3

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USP-1A07430

2-Vinylpyridine (2-Ethenylpyridine)

Item no.

USP-1A07430

Unit

25 mg

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USP-1A07530

(1-Carboxy-3-phenylpropyl)-L-lysine (a-[[(1S)-5-Amino-1-carboxypentyl]amino]benzenebutanoic acid)

Item no.

USP-1A07530

Unit

25 mg

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USP-1A07540

Deoxybicalutamide (N-[4-Cyano-3-(trifluoromethyl)phenyl]-3-(4-fluorophenylsulfonyl)-2-methylpropanamide)

Item no.

USP-1A07540

Unit

25 mg

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USP-1A07790

Doxylamine N-Oxide (N,N-Dimethyl-2-[1-phenyl-1-(pyridin-2-yl)ethoxy]ethan-1-amine oxide)

Item no.

USP-1A07790

Unit

25 mg

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USP-1A07810

4-Chloro Omeprazole (2-[(RS)-[4-Chloro-3,5-dimethylpyridin-2-yl)methyl]sulfinyl]-5-methoxy-1H-benzimidazole)

Item no.

USP-1A07810

Unit

25 mg

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USP-1A07870

N-(1,2-Dicarboxyethyl) Rosiglitazone (2-(5-{[4-({2-[Methyl(2-pyridinyl)amino]ethyl}oxy)phenyl]methyl}-2,4-dioxo-1,3-thiazolidin-3-yl)butanedioic acid)

Item no.

USP-1A07870

Unit

25 mg

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USP-1A07900

2,3-Isosertraline Hydrochloride ((1RS,4RS)-4-(2,3-dichlorophenyl)-N-methyl-1,2,3,4-tetrahydronaphthalen-1-amine hydrochloride)

Item no.

USP-1A07900

Unit

10 mg

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USP-1A07910

Mutilin (3aS,4R,5S,6S,8R,9R,9aR,10R)-6-Ethenyloctahydro-5,8-dihydroxy-4,6,9,10-tetramethyl-3a,9-propano-3aH-cyclopentacycloocten-1(4H)-one)

Item no.

USP-1A07910

Unit

25 mg

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USP-1A08030

rac-Itraconazole Propyl analog (4-(4-{4-[4-({(2RS,4SR)-2-[(1H-1,2,4-Triazol-1-yl)methyl]-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl}methoxy)phenyl]piperazin-1-yl}phenyl)-2-propyl-2H-1,2,4-triazol-3(4H)-one)

Item no.

USP-1A08030

Unit

25 mg

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USP-1A08050

Inosine (9-beta-D-Ribofuranosylpurine-6(1H)-one)

Item no.

USP-1A08050

Unit

25 mg

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USP-1A08180

Icomethasone Furoate (9alpha-Chloro-11beta,21-dihydroxy-16alpha-methyl-3,20-dioxopregna-1,4-dien-17-yl furan-2-carboxylate)

Item no.

USP-1A08180

Unit

25 mg

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USP-1A08230

Di-O-methyl Levodopa (3,4-Dimethoxy-L-phenylalanine)

Item no.

USP-1A08230

Unit

25 mg

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USP-1A08240

N-Benzyl Epinephrine ((R)-4-{2-[Benzyl(methyl)amino]-1-hydroxyethyl}benzene-1,2-diol)

Item no.

USP-1A08240

Unit

25 mg

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USP-1A08250

Didehydropimozide (1-{1-[4,4-Bis(4-fluorophenyl)butyl]-1,2,3,6-tetrahydropyridin-4-yl}benzimidazolin-2-one)

Item no.

USP-1A08250

Unit

25 mg

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USP-1A08350

Chlorhexidine Amine (1-(6-Aminohexyl)-5-(4-chlorophenyl)biguanide)

Item no.

USP-1A08350

Unit

25 mg

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USP-1A08420

Loperamide Piperidinolamide Hydrobromide (1,4-Bis[4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl]-2,2-diphenylbutan-1-one hydrobromide)

Item no.

USP-1A08420

Unit

25 mg

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USP-1A08490

Aminoethyl Fluvoxamine Dihydrochloride ((E)-5-Methoxy-1-[4-(trifluoromethyl)phenyl]pentan-1-one O-{2-[(2-aminoethyl)amino]ethyl}oxime dihydrochloride)

Item no.

USP-1A08490

Unit

25 mg

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USP-1A08510

Aminoethyl Desmethoxy Fluvoxamine Dihydrochloride ((E)-1-[4-(Trifluoromethyl)phenyl]pentan-1-one O-{2-[(2-aminoethyl)amino]ethyl} oxime dihydrochloride)

Item no.

USP-1A08510

Unit

25 mg

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USP-1A08530

Linezolid N-oxide ((S)-4-4-[5-(Acetamidomethyl)-2-oxooxazolidin-3-yl]-2-fluorophenylmorpholine 4-oxide)

Item no.

USP-1A08530

CAS Number

[189038-36-6]

Unit

25 mg

Molecular formula

C16H20FN3O5

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USP-1A08570

Acridine Carboxylic Acid Hydrate (Acridine-9-carboxylic acid hydrate)

Item no.

USP-1A08570

Unit

25 mg

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