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Pharmaceutical Reference Standards

USP - United States Pharmacopeia Pharmaceutical Analytical Impurities

992 products found

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USP-1A00890

Carvedilol Bisalkylpyrocatechol derivative (3,3'-{2,2'-[1,2-Phenylenebis(oxy)]bis(ethane-2,1-diyl)}bis(azanediyl)bis(1-(9H-carbazol-4-yloxy)propan-2-ol))

Item no.

USP-1A00890

CAS Number

[1346602-98-9]

Unit

25 mg

Molecular formula

C40H42N4O6

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USP-1A01170

Rivaroxaban Glycolic Acid Analog ((S)-2-(2-((4-(5-((5-chlorothiophene-2-carboxamido)methyl)-2-oxooxazolidin-3-yl)phenyl)amino)ethoxy)acetic acid)

Item no.

USP-1A01170

CAS Number

[931204-39-6]

Unit

25 mg

Molecular formula

C19H20ClN3O6S

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USP-1A01400

6Beta-Hydroxybudesonide ((2R,6aR,6bS,7S,8aS,8bS,11aR,12aS,12bS)-2,7-dihydroxy-8b-(2-hydroxyacetyl)-6a,8a-dimethyl-10-propyl-1,2,6a,6b,7,8,8a,8b,11a,12,12a,12b-dodecahydro-4H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-4-one)

Item no.

USP-1A01400

CAS Number

[88411-77-2]

Unit

25 mg

Molecular formula

C25H34O7

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USP-1A01460

Rivaroxaban Open Chain Dithiophene Analog ((S)-5-chloro-N-(4-(5-((5-chlorothiophene-2-carboxamido)methyl)-2-oxooxazolidin-3-yl)phenyl)-N-(2-(2-(methylamino)-2-oxoethoxy)ethyl)thiophene-2-carboxamide)

Item no.

USP-1A01460

CAS Number

[1807455-76-0]

Unit

10 mg

Molecular formula

C25H24Cl2N4O6S2

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USP-1A01520

Rivaroxaban N-methylphthalamido Analog ((S)-N1-methyl-N2-((2-oxo-3-(4-(3-oxomorpholino)phenyl)oxazolidin-5-yl)methyl)phthalamide)

Item no.

USP-1A01520

CAS Number

[2206360-74-7]

Unit

25 mg

Molecular formula

C23H24N4O6

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USP-1A01560

Chlorothiophene Aldehyde (5-chlorothiophene-2-carbaldehyde)

Item no.

USP-1A01560

CAS Number

[7283-96-7]

Unit

25 mg

Molecular formula

C5H3ClOS

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USP-1A01720

Open Ring N-Methyl Clopidogrel Hydrochloride (methyl (S)-2-(2-chlorophenyl)-2-(methyl(2-(thiophen-2-yl)ethyl)amino)acetate, hydrochloride)

Item no.

USP-1A01720

CAS Number

[n/a]

Unit

25 mg

Molecular formula

C16H18ClNO2S.HCl

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USP-1A01730

Clopidogrel Ethyl Ester Sulfate (ethyl (S)-2-(2-chlorophenyl)-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)acetate, sulfate)

Item no.

USP-1A01730

CAS Number

[1332612-57-3]

Unit

25 mg

Molecular formula

C17H18ClNO2S. H2O4S

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USP-1A01740

Desfluorociprofloxacin Hydrochloride (1-cyclopropyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid, hydrochloride)

Item no.

USP-1A01740

CAS Number

[2727369-47-1]

Unit

25 mg

Molecular formula

C17H19N3O3. HCl

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USP-1A01850

Tetrahydrothienopyridine Hydrochloride (4,5,6,7-Tetrahydrothieno[3,2-c]pyridine, hydrochloride)

Item no.

USP-1A01850

CAS Number

[28783-41-7]

Unit

25 mg

Molecular formula

C7H9NS. HCl

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USP-1A02000

Budesonide Pyruvic Acid (2-((6aR,6bS,7S,8aS,8bS,11aR,12aS,12bS)-7-hydroxy-6a,8a-dimethyl-4-oxo-10-propyl-1,2,4,6a,6b,7,8,8a,11a,12,12a,12b-dodecahydro-8bH-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-8b-yl)-2-oxoacetic acid)

Item no.

USP-1A02000

CAS Number

[n/a]

Unit

25 mg

Molecular formula

C25H32O7

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USP-1A02060

trans-Cholecalciferol (COLD SHIPMENT REQUIRED)

Item no.

USP-1A02060

CAS Number

[22350-41-0]

Unit

25 mg

Molecular formula

C27H44O

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USP-1A03330

Orlistat Open Ring Amide (N-Formyl-L-leucine(S)-1-[(2S,3S)-2-hydroxy-3-[1-phenyl-R-ethyl-carbomoyl]nonyl]-dodecyl ester)

Item no.

USP-1A03330

CAS Number

[n/a]

Unit

25 mg

Molecular formula

C37H64N2O5

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USP-1A06180

Atazanavir Sulfate Valine Analog (methyl ((5S,10S,11S,14S)-11-benzyl-5-(tert-butyl)-10-hydroxy-15-methyl-3,6,13-trioxo-8-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,8,12-tetraazahexadecan-14-yl)carbamate sulfate)

Item no.

USP-1A06180

Unit

25 mg

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USP-1A06240

4-Epi Docetaxel

Item no.

USP-1A06240

Unit

25 mg

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USP-1A06670

2'-O-(5-deoxy-Beta-D-ribofuranosyl) Capecitabine ([1-[5-Deoxy-2-O-(5-deoxy-beta-D-ribofuranosyl)-beta-D-ribofuranosyl]-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl]-carbamic acid pentyl ester)

Item no.

USP-1A06670

Unit

25 mg

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USP-1A06850

Z-Mycophenolate Mofetil (2-Morpholinoethyl (Z)-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydroisobenzofuran-5-yl)-4-methylhex-4-enoate)

Item no.

USP-1A06850

Unit

10 mg

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USP-1A06880

Orlistat Open Ring ((2S,3S,5S)-5-[(Formyl-L-leucyl)oxy]-2-hexyl-3-hydroxyhexadecanoic acid)

Item no.

USP-1A06880

Unit

25 mg

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USP-1A07150

Rosuvastatin Sodium Benzoquinazoline Analog (Sodium (3R,5S)-5-((S)-8-fluoro-4-isopropyl-2-(N-methylmethylsulfonamido)-5,6-dihydrobenzo[h]quinazolin-6-yl)-3,5-dihydroxypentanoate)

Item no.

USP-1A07150

Unit

25 mg

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USP-1A07480

Doxylamine Dioxide (N,N-Dimethyl-2-(1-(1-oxidopyridin-2-yl)-1-phenylethoxy)ethan-1-amine N-oxide, N,N-Dimethyl-2-(1-(1-oxidopyridin-2-yl)-1-phenylethoxy)ethan-1-amine oxide) (COLD SHIPMENT REQUIRED)

Item no.

USP-1A07480

Unit

25 mg

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USP-1A07520

Bicyclorisperidone Chloride (3-(4-Fluoro-2-hydroxyphenyl)-1-2-(6,7,8,9-tetrahydro-2-methyl-4-oxo-4H-pyrido- [1,2-a]pyrimidin-3-yl)ethyl-2-aza-1-azoniabicyclo[2.2.2]oct-2-ene Chloride)

Item no.

USP-1A07520

Unit

25 mg

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USP-1A07670

Viquidil (1-(6-Methoxyquinolin-4-yl)-3-[(3R,4R)-3-vinylpiperidin-4-yl]propan-1-one)

Item no.

USP-1A07670

Unit

25 mg

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USP-1A07890

Rosuvastatin Sodium Dehydro Analog (COLD SHIPMENT REQUIRED) ((S,2E,6E)-7-[4-(4-Fluorophenyl)-6-isopropyl-2-(N-methylmethylsulfonamido) pyrimidin-5-yl]-5-hydroxyhepta-2,6-dienoic acid Sodium salt)

Item no.

USP-1A07890

Unit

10 mg

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USP-1A07940

Didesmethyl Venlafaxine Hydrochloride (1-(2-amino-1-(4-methoxyphenyl)ethyl)cyclohexan-1-ol, hydrochloride)

Item no.

USP-1A07940

Unit

25 mg

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USP-1A08290

Desallyl Deacetyl Rocuronium (2beta-(Morpholin-4-yl)-16beta-(pyrrolidin-1-yl)-5alpha-androstane-3alpha,17beta-diol)

Item no.

USP-1A08290

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-1A08520

Fluvoxamine Oxime ((E)-5-Methoxy-1-[4-(trifluoromethyl)phenyl]pentan-1-one oxime)

Item no.

USP-1A08520

Unit

25 mg

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USP-1A08720

Torsemide Ethyl Carbamate (Ethyl {[4-(3-tolylamino)pyridin-3-yl]sulfonyl}carbamate)

Item no.

USP-1A08720

Unit

25 mg

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USP-1A08820

N-Nitroso-(E)-N,6,6-trimethylhept-2-en-4-yn-1-amine Solution (1 mg/mL in Methanol) ((E)-N-(6,6-dimethylhept-2-en-4-yn-1-yl)-N-methylnitrous amide)

Item no.

USP-1A08820

Unit

1 mL

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USP-1A09150

N-Nitroso Sertraline Solution (1 mg/mL in Methanol) (N-((1S,4S)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydronaphthalen-1-yl)-N-methylnitrous amide)

Item no.

USP-1A09150

Unit

1 mL

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USP-1A09170

N-Nitroso Tetracaine Solution (1 mg/mL in Acetonitrile) (2-(dimethylamino)ethyl 4-(butyl(nitroso)amino)benzoate)

Item no.

USP-1A09170

Unit

1 mL

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USP-1A10060

17-Acetyl Norethindrone Acetate (3,20-Dioxo-19-nor-17alpha-pregn-4-en-17-yl acetate)

Item no.

USP-1A10060

Unit

25 mg

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USP-1A10080

Aminofluconazole Quaternary Mesylate (4-Amino-1-(2-(2,4-difluorophenyl)-2-hydroxy-3-(1H-1,2,4-triazol-1-yl)propyl)-4H-1,2,4-triazolium methanesulfonate)

Item no.

USP-1A10080

Unit

25 mg

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USP-1A10100

Guanosine (2-Amino-9-Beta-D-ribofuranosylpurine-6(1H)-one)

Item no.

USP-1A10100

Unit

25 mg

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USP-1A10250

Desethylene Quingestanol Acetate (3-Isopropoxy-19-nor-(17alpha)-pregn-3,5-dien-20-yn-17-yl acetate)

Item no.

USP-1A10250

Unit

25 mg

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USP-1A10290

Anhydroerythromycin A

Item no.

USP-1A10290

Unit

25 mg

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USP-1A10340

(2R)-Vildagliptin ((R)-1-[N-(3-Hydroxyadamantan-1-yl)glycyl]-2-pyrrolidinecarbonitrile)

Item no.

USP-1A10340

Unit

25 mg

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USP-1A10710

9-Bromo Betamethasone Dipropionate (9-Bromo-11beta-hydroxy-16beta-methyl-3,20-dioxopregna-1,4-diene-17,21-diyl dipropionate)

Item no.

USP-1A10710

Unit

25 mg

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USP-1A10730

Beclomethasone Tripropionate (9-Chloro-16beta-methyl-3,20-dioxopregna-1,4-diene-11beta,17,21-triyl tripropionate)

Item no.

USP-1A10730

Unit

25 mg

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USP-1A10760

Caffeidine Hydrochloride (N-1-Dimethyl-4-(methylamino)-1H-imidazole-5-carboxamide hydrochloride)

Item no.

USP-1A10760

Unit

25 mg

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USP-1A10770

Prednisolone Diene (21-Hydroxypregna-1,4,9(11),16-tetraene-3,20-dione)

Item no.

USP-1A10770

Unit

25 mg

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USP-1A11020

Deoxy Chlorthalidone (2-Chloro-5-(3-oxoisoindolin-1-yl)benzenesulfonamide)

Item no.

USP-1A11020

Unit

25 mg

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USP-1A11040

Chlorthalidone Isopropyl Ether (2-Chloro-5-(1-isopropoxy-3-oxoisoindolin-1-yl)benzenesulfonamide)

Item no.

USP-1A11040

Unit

25 mg

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USP-1A11060

Dessulfonamide Chlorthalidone (3-(4-Chlorophenyl)-3-hydroxyisoindolin-1-one)

Item no.

USP-1A11060

Unit

25 mg

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USP-1A11080

Hydrocortisone 17-Acetate (11beta,21-Dihydroxy-3,20-dioxopregna-4-en-17-yl acetate)

Item no.

USP-1A11080

Unit

25 mg

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USP-1A11160

Metronidazole Acid 4-Nitro Isomer ((2-Methyl-4-nitro-1H-imidazol-1-yl)acetic acid)

Item no.

USP-1A11160

Unit

25 mg

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USP-1A11650

Cortodoxone (17,21-Dihydroxypregn-4-ene-3,20-dione)

Item no.

USP-1A11650

Unit

25 mg

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USP-1A11840

Desfluoro Risperidone (3-{2-[4-(Benzisoxazol-3-yl)piperidin-1-yl]ethyl}-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one)

Item no.

USP-1A11840

Unit

25 mg

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USP-1A11970

Sitagliptin Pyrazinone (3-(trifluoromethyl)-6,7-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-8(5H)-one)

Item no.

USP-1A11970

Unit

25 mg

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USP-1A12310

Despiperazinyl Olaparib (2-fluoro-N,N-dimethyl-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzamide)

Item no.

USP-1A12310

Unit

25 mg

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