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Pharmaceutical Reference Standards

USP - United States Pharmacopeia Pharmaceutical Analytical Impurities

1527 products found

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USP-1A00550

(R)-Clopidogrel Carboxylic Acid ((R)-2-(2-chlorophenyl)-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)acetic acid)

Item no.

USP-1A00550

CAS Number

[324757-50-8]

Unit

10 mg

Molecular formula

C15H14ClNO2S

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USP-1A02450

2-Dechloro Aripiprazole (7-(4-(4-(3-chlorophenyl)piperazin-1-yl)butoxy)-3,4-dihydroquinolin-2(1H)-one)

Item no.

USP-1A02450

CAS Number

[203395-82-8]

Unit

25 mg

Molecular formula

C23H28ClN3O2

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USP-1A02570

3-Dechloro Aripiprazole (7-(4-(4-(2-chlorophenyl)piperazin-1-yl)butoxy)-3,4-dihydroquinolin-2(1H)-one)

Item no.

USP-1A02570

CAS Number

[203395-81-7]

Unit

25 mg

Molecular formula

C23H28ClN3O2

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USP-1A03510

7-Keto abiraterone Acetate

Item no.

USP-1A03510

CAS Number

[2410075-48-6]

Unit

25 mg

Molecular formula

C26H31NO3

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USP-1A08560

Chloromethyl Olanzapinium Chloride (1-Chloromethyl-1-methyl-4-(2-methyl-10H-benzo[b]thieno[2,3-e][1,4]diazepin-4-yl)piperazin-1-ium chloride)

Item no.

USP-1A08560

CAS Number

[719300-59-1]

Unit

25 mg

Molecular formula

C18H22Cl2N4S

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USP-1A09020

N-Nitroso N-Desmethyl Venlafaxine Solution (1 mg/mL in Methanol) (N-[2-(1-Hydroxycyclohexyl)-2-(4-methoxyphenyl)ethyl]-N-methylnitrous amide)

Item no.

USP-1A09020

Unit

1 mL

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USP-1A09830

N-Nitroso Desmethyl (E)-Doxepin Solution (1 mg/mL in Acetonitrile) ((E)-N-[3-(Dibenzo[b,e]oxepin-11(6H)-ylidene)propyl]-N-methylnitrous amide)

Item no.

USP-1A09830

Unit

1 mL

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USP-1A11290

N-Des(1,2-dimethoxy-4-propylbenzene) N-Nitroso Verapamil (N-(4-Cyano-4-(3,4-dimethoxyphenyl)-5-methylhexyl)-N-methylnitrous amide)

Item no.

USP-1A11290

Unit

5 mg

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USP-1A12110

O-Methyl Tapentadol Hydrochloride CII ((2R,3R)-3-(3-methoxyphenyl)-N,N,2-trimethylpentan-1-amine hydrochloride) (CONTROLLED IN GERMANY)

Item no.

USP-1A12110

Unit

10 mg

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USP-1A12760

Sofosbuvir 3'-O-Isomer (Isopropyl [(S)-{[(2R,3R,4R,5R)-5-[2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl]-4-fluoro-2-(hydroxymethyl)-4-methyltetrahydrofuran-3-yl]oxy}(phenoxy)phosphoryl]-L-alaninate)

Item no.

USP-1A12760

Unit

10 mg

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USP-1A12820

Olaparib Dimer (4,4'-{[(Piperazine-1,4-dicarbonyl)bis(4-fluoro-3,1-phenylene)]bis(methylene)}bis(phthalazin-1(2H)-one))

Item no.

USP-1A12820

Unit

25 mg

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USP-1A13180

sec-Butyl Paclitaxel

Item no.

USP-1A13180

Unit

25 mg

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USP-1A13210

6,9-Diacyl Paclitaxel

Item no.

USP-1A13210

Unit

25 mg

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USP-1A13270

28-oxo-H2B1a Ivermectin

Item no.

USP-1A13270

Unit

25 mg

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USP-1A13530

Deschloro Tolvaptan (N-[4-(5-Hydroxy-2,3,4,5-tetrahydro-1H-benzo[b]azepine-1-carbonyl)-2-methylphenyl]-2-methylbenzamide)

Item no.

USP-1A13530

Unit

25 mg

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USP-1A13790

Di-N1-(2,3-dichlorophenyl)ethane-1,2-diamine (N1-(2,3-Dichlorophenyl)-N2-(2-((2,3-dichlorophenyl)amino)ethyl)ethane-1,2-diamine)

Item no.

USP-1A13790

Unit

25 mg

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USP-1A14110

Ethyl Sofosbuvir (Ethyl [(S)-{[(2R,3R,4R,5R)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-4-fluoro-3-hydroxy-4-methyltetrahydrofuran-2-yl]methoxy}(phenoxy)phosphoryl]-L-alaninate)

Item no.

USP-1A14110

Unit

25 mg

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USP-1A14130

Tenofovir Enantiomer ((S)-(1-(6-Amino-9H-purin-9-yl)propan-2-yloxy)methylphosphonic acid)

Item no.

USP-1A14130

Unit

25 mg

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USP-1A14140

Piperidinylamino Linagliptin ((R)-7-(But-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-8-(piperidin-3-ylamino)-3,7-dihydro-1H-purine-2,6-dione)

Item no.

USP-1A14140

Unit

25 mg

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USP-1A14730

N-Nitroso Prilocaine (2-(nitroso(propyl)amino)-N-(o-tolyl)propanamide)

Item no.

USP-1A14730

Unit

5 mg

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USP-1A14810

Descyano Ethyl Ester Febuxostat (2-[3-(Ethoxycarbonyl)-4-isobutoxyphenyl]-4-methyl-1,3-thiazole-5-carboxylic acid)

Item no.

USP-1A14810

Unit

25 mg

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USP-1A15120

Linagliptin des-piperidine Amine (7-(2-Butyn-1-yl)-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-3,7-dihydro-1H-purine-2,6-dione)

Item no.

USP-1A15120

Unit

25 mg

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USP-1A15130

Despiperidine Dimethylamino Linagliptin (7-(2-Butyn-1-yl)-8-(dimethylamino)-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-3,7-dihydro-1H-purine-2,6-dione)

Item no.

USP-1A15130

Unit

25 mg

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USP-1A15140

Linagliptin 3-Methyl Phthalimide ((R)-7-(But-2-yn-1-yl)-8-(3-(5-methyl-1,3-dioxoisoindolin-2-yl)piperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione)

Item no.

USP-1A15140

Unit

25 mg

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USP-1A15300

Phenyl Macitentan (6-[2-(5-bromopyrimidin-2-yl)oxyethoxy]-5-phenyl-N-(propylsulfamoyl)pyrimidin-4-amine)

Item no.

USP-1A15300

Unit

25 mg

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USP-1A15330

N-Methyl Enzalutamide (4-{3-[4-Cyano-3-(trifluoromethyl)phenyl]-5,5-dimethyl-4-oxo-2-thioxo-1-imidazolidinyl}-2-fluoro-N,N-dimethylbenzamide)

Item no.

USP-1A15330

Unit

25 mg

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USP-1A15340

Lenvatinib Acid (4-(3-chloro-4-(3-cyclopropylureido)phenoxy)-7-methoxyquinoline-6-carboxylic acid)

Item no.

USP-1A15340

Unit

25 mg

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USP-1A15510

Succinyl Palbociclib (4-(4-{6-[(6-Acetyl-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl)amino]pyridin-3-yl}piperazin-1-yl)-4-oxobutanoic acid)

Item no.

USP-1A15510

Unit

25 mg

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USP-1A15640

Monoacetyl Canagliflozin ((1S)-6-O-Acetyl-1,5-anhydro-1-(3-{[5-(4-fluorophenyl)-2-thienyl]methyl}-4-methylphenyl)-D-glucitol)

Item no.

USP-1A15640

Unit

25 mg

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USP-1A16240

Empagliflozin Acetate ((1S)-6-O-Acetyl-1,5-anhydro-1-C-{4-chloro-3-[(4-{[(3S)-oxolan-3-yl]oxy}phenyl)methyl]phenyl}-D-glucitol)

Item no.

USP-1A16240

Unit

25 mg

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USP-1A16270

2-Chloro Tofacitinib (3-{(3R,4R)-3-[(2-Chloro-7H-pyrrolo[2,3-d]pyrimidin-4-yl)(methyl)amino]-4-methyl-1-piperidinyl}-3-oxopropanenitrile)

Item no.

USP-1A16270

Unit

25 mg

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USP-1A17110

Deschlorotoluyl Dasatinib Acid (2-((6-(4-(2-hydroxyethyl)piperazin-1-yl)-2-methylpyrimidin-4-yl)amino)thiazole-5-carboxylic acid)

Item no.

USP-1A17110

Unit

25 mg

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USP-1A17230

Desketo Alectinib (2-{2-[4-Ethyl-3-(4-morpholinopiperidin-1-yl)phenyl]propan-2-yl}-1H-indole-6-carbonitrile)

Item no.

USP-1A17230

Unit

25 mg

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USP-1A18200

Loxoprofen Open Ring Acid (6-(4-(1-Carboxyethyl)phenyl)-5-oxohexanoic acid)

Item no.

USP-1A18200

Unit

25 mg

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USP-1A18210

4-Furfuryl Furosemide (2,4-Bis[(2-furylmethyl)amino]-5-sulfamoylbenzoic acid)

Item no.

USP-1A18210

Unit

25 mg

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USP-1A18220

Ambroxol Cycloimine (trans-4-(6,8-Dibromo-3(4H)-quinazolinyl)cyclohexanol)

Item no.

USP-1A18220

CAS Number

[2088879-81-4]

Unit

25 mg

Molecular formula

C14H16Br2N2O

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USP-1A18260

Oseltamivir Methyl Ester (Methyl (3R,4R,5S)-4-acetylamino-5-amino-3-(pentan-3-yloxy)-1-cyclohexene-1-carboxylate)

Item no.

USP-1A18260

Unit

25 mg

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USP-1A18330

Roxadustat Aziridine (N-[(1a-Methyl-6-oxo-3-phenoxy-1a,6-dihydroindeno[1,2-b]aziren-6a(1H)-yl)carbonyl]glycine)

Item no.

USP-1A18330

Unit

25 mg

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USP-1A18360

Deethyl Bilastine (2-[4-[2-[4-[1-(2-Hydroxyethyl)benzimidazol-2-yl]piperidin-1-yl]ethyl]phenyl]-2-methylpropanoic acid)

Item no.

USP-1A18360

Unit

25 mg

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USP-1A18370

Paracetamol Phenoxy 5-acetamide (N-[4-(5-Acetamido-2-hydroxyphenoxy)phenyl]acetamide)

Item no.

USP-1A18370

Unit

25 mg

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USP-1A18410

O-Demethyl Metoclopramide (4-Amino-5-chloro-N-[2-(diethylamino)ethyl]-2-hydroxybenzamide)

Item no.

USP-1A18410

Unit

25 mg

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USP-1A18710

(2R,4R)-Teneligliptin ({(2R,4R)-4-[4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)-1-piperazinyl]-2-pyrrolidinyl}(1,3-thiazolidin-3-yl)methanone)

Item no.

USP-1A18710

Unit

25 mg

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USP-1A18950

Dapagliflozin C2 Epimer ((2S,3S,4R,5S,6R)-2-{4-Chloro-3-[(4-ethoxyphenyl)methyl]phenyl}-6-(hydroxymethyl)oxane-3,4,5-triol)

Item no.

USP-1A18950

Unit

25 mg

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USP-1A19080

Bupivacaine N-Oxide (1-Butyl-N-(2,6-dimethylphenyl)-2-piperidinecarboxamide 1-oxide)

Item no.

USP-1A19080

Unit

25 mg

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USP-1A19130

Vonoprazan Amine Fumarate ((5-(2-Fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)methanamine fumarate (1:1))

Item no.

USP-1A19130

Unit

25 mg

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USP-1A19150

Mometasone 9-ene (21-Chloro-16alpha-methyl-3,20-dioxopregna-1,4,9(11)-trien-17-yl furan-2-carboxylate)

Item no.

USP-1A19150

Unit

25 mg

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USP-1A19290

Linagliptin N-Oxime (7-(but-2-yn-1-yl)-8-(3-(hydroxyimino)piperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione)

Item no.

USP-1A19290

Unit

25 mg

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USP-1A20830

21-O-Acetyl Dexamethasone 9,11-Epoxide (7-(4-bromobenzoyl)indoline-2,3-dione)

Item no.

USP-1A20830

Unit

25 mg

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USP-1A21230

Dexamethasone 11,21-Diacetate ((11beta,16alpha)-9-Fluoro-17-hydroxy-16-methyl-3,20-dioxopregna-1,4-diene-11,21-diyl diacetate)

Item no.

USP-1A21230

Unit

25 mg

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USP-1A21400

(+/-)-Epinephrine Sulfonic Acid (1-(3,4-Dihydroxyphenyl)-2-(methylamino)ethanesulfonic acid)

Item no.

USP-1A21400

Unit

25 mg

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