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USP - United States Pharmacopeia Pharmaceutical Analytical Impurities

1028 products found

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USP-1A00040

Hydroxythiadiazol Sulfoxide Derivative (4-morpholino-1,2,5-thiadiazol-3(2H)-one 1-oxide)

Item no.

USP-1A00040

CAS Number

[75202-36-7]

Unit

25 mg

Molecular formula

C6H9N3O3S

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USP-1A00070

3'-(N,N-Didemethyl)azithromycin (Aminoazithromycin)

Item no.

USP-1A00070

CAS Number

[612069-27-9]

Unit

25 mg

Molecular formula

C36H68N2O12

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USP-1A00110

6Beta-Hydroxy Ethinyl Estradiol ((6R,8R,9S,13S,14S,17R)-17-ethynyl-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,6,17-triol)

Item no.

USP-1A00110

CAS Number

[56324-28-8]

Unit

25 mg

Molecular formula

C20H24O3

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USP-1A00120

Fluoroandrostadiene Carboxylic Acid ((8S,9R,10S,11S,13S,14S,16R,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid)

Item no.

USP-1A00120

CAS Number

[37927-01-8]

Unit

25 mg

Molecular formula

C21H27FO5

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USP-1A00130

Quetiapine Tetraethylene Glycol Fumarate Salt (COLD SHIPMENT REQUIRED) (2-(2-(2-(2-(4-(dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)ethoxy)ethoxy)ethoxy)ethan-1-ol-fumarate)

Item no.

USP-1A00130

CAS Number

[2470243-24-2]

Unit

25 mg

Molecular formula

C25H33N3O4S ? C4H4O4

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USP-1A00140

R,R,S-Ezetimibe ((3R,4S)-1-(4-fluorophenyl)-3-((R)-3-(4-fluorophenyl)-3-hydroxypropyl)-4-(4-hydroxyphenyl)azetidin-2-one)

Item no.

USP-1A00140

CAS Number

[163380-16-3]

Unit

25 mg

Molecular formula

C24H21F2NO3

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USP-1A00150

Bis(dibenzothiazepinyl) Piperazine (1,4-Bis(dibenzo[b,f][1,4]thiazepin-11-yl)piperazine)

Item no.

USP-1A00150

CAS Number

[945668-94-0]

Unit

25 mg

Molecular formula

C30H24N4S2

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USP-1A00160

Decarboxy Levofloxacin ((S)-9-fluoro-3-methyl-7-oxo-10-(4-methylpiperazine-1-yl)-2,3-dihydro-7H-pyrido [1,2,3-de] -1,4-benzoxazine)

Item no.

USP-1A00160

CAS Number

[178964-53-9]

Unit

25 mg

Molecular formula

C17H20FN3O2

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USP-1A00180

N-Ethyl Quetiapine (11-(4-Ethylpiperazin-1-yl)dibenzo[b,f][1,4]thiazepine hydrochloride)

Item no.

USP-1A00180

CAS Number

[1011758-03-4] (free base)

Unit

25 mg

Molecular formula

C19H21N3S. C4H4O4

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USP-1A00210

3'-(N,N-Didemethyl)-3'-N-formylazithromycin

Item no.

USP-1A00210

CAS Number

[765927-71-7]

Unit

25 mg

Molecular formula

NA

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USP-1A00230

N-Isopropyl Carvedilol (1-(9H-Carbazol-4-yloxy)-3-[[2-(2-methoxyphenoxy)ethyl](1-methylethyl)amino]-2-propanol)

Item no.

USP-1A00230

CAS Number

[1246819-01-1]

Unit

25 mg

Molecular formula

C27H32N2O4

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USP-1A00240

o-Celecoxib (4-(5-(o-tolyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl)benzenesulfonamide)

Item no.

USP-1A00240

CAS Number

[170569-99-0]

Unit

25 mg

Molecular formula

C17H14F3N3O2S

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USP-1A00250

Donepezil quaternary salt (donepezilbenzyl Bromide) (1,1-dibenzyl-4-((5,6-dimethoxy-1-oxo-2,3-dihydro-1H-inden-2-yl)methyl)piperidin-1-ium, bromide)

Item no.

USP-1A00250

CAS Number

[844694-85-5]

Unit

25 mg

Molecular formula

C31H36BrNO3

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USP-1A00260

Azacitidine Formyl Amidine Analog (N-(Formyl amidino)-N'-Beta-D-ribofuranosylurea) (INTERNATIONAL COLD CHAIN SHIPMENT REQUIRED)

Item no.

USP-1A00260

CAS Number

[65126-88-7]

Unit

25 mg

Molecular formula

C8H14N4O6

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USP-1A00270

Azacitidine Isomer -3 (1-Beta-D-Ribofuranosyl-3-aminocarbonyl guanidine acetate)

Item no.

USP-1A00270

CAS Number

[n/a]

Unit

25 mg

Molecular formula

C9H18N4O7

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USP-1A00290

Isopropyl 4-acetylbenzoate (COLD SHIPMENT REQUIRED) (Isopropyl 4-acetylbenzoate)

Item no.

USP-1A00290

CAS Number

[220089-22-5]

Unit

25 mg

Molecular formula

C12H14O3

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USP-1A00300

Dexamethasone Formate (COLD SHIPMENT REQUIRED) ((8S,9R,10S,11S,13S,14S,16R,17R)-9-fluoro-17-(formyloxy)-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid)

Item no.

USP-1A00300

CAS Number

[473273-04-0]

Unit

25 mg

Molecular formula

C22H27FO6

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USP-1A00321

Clindamycin 3-Phosphate (COLD SHIPMENT REQUIRED) (Methyl 7-chloro-6,7,8-trideoxy-6-[(2S,4R)-1-methyl-4-propylpyrrolidine-2-carboxamido]-1-thio-L-threo-alpha-D-galacto-octopyranoside 3-phosphate)

Item no.

USP-1A00321

CAS Number

[28708-34-1]

Unit

10 mg

Molecular formula

C18H34ClN2O8PS

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USP-1A00340

Dexamethasone Ethyl Ester (COLD SHIPMENT REQUIRED) (Ethyl 11Beta,17alpha-dihydroxy-9-fluoro-16alpha-methylandrostane-1,4-diene-3-one-17-ylcarboxylate)

Item no.

USP-1A00340

CAS Number

[37926-77-5]

Unit

25 mg

Molecular formula

C23H31FO5

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USP-1A00360

Ethylpyrazinediethanol (2,2'-(3-ethylpyrazine-2,5-diyl)bis(ethan-1-ol))

Item no.

USP-1A00360

CAS Number

[86917-74-0]

Unit

10 mg

Molecular formula

C10H16N2O2

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USP-1A00380

Pyrazinediethanol Propionic Acid (3-(3,6-bis(2-hydroxyethyl)pyrazin-2-yl)propanoate, sodium salt)

Item no.

USP-1A00380

CAS Number

[96681-85-5] (free acid)

Unit

5 mg

Molecular formula

C11H15NaN2O4

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USP-1A00410

Budesonide Sulfate Triethylamine Salt

Item no.

USP-1A00410

CAS Number

[1436872-65-9]

Unit

10 mg

Molecular formula

C25H34O9S·C6H15N

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USP-1A00450

Pyrazinediethanol (2,2'-(pyrazine-2,5-diyl)bis(ethan-1-ol))

Item no.

USP-1A00450

CAS Number

[4744-51-8]

Unit

10 mg

Molecular formula

C8H12N2O2

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USP-1A00460

Pyrrolic acid Derivative (4-(2-hydroxyethyl)-1H-pyrrole-3-carboxylic acid)

Item no.

USP-1A00460

CAS Number

[404839-11-8]

Unit

10 mg

Molecular formula

C7H9NO3

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USP-1A00470

17-Oxo Dexamethasone ((8S,9R,10S,11S,13S,14S,16R)-9-fluoro-11-hydroxy-10,13,16-trimethyl-7,8,9,10,11,12,13,14,15,16-decahydro-3H-cyclopenta[a]phenanthrene-3,17(6H)-dione)

Item no.

USP-1A00470

CAS Number

[1880-61-1]

Unit

10 mg

Molecular formula

C20H25FO3

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USP-1A00480

Ibuprofen Tetraethylene Glycol Diester (((oxybis(ethane-2,1-diyl))bis(oxy))bis(ethane-2,1-diyl) bis(2-(4-isobutylphenyl)propanoate)))

Item no.

USP-1A00480

CAS Number

[1161014-75-0]

Unit

25 mg

Molecular formula

C34H50O7

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USP-1A00500

Budesonide D-homo Analog ((4aR,4bS,5S,6aS,7aR,10aR,11aS,11bS)-5-hydroxy-7a-(hydroxymethyl)-4a,6a-dimethyl-9-propyl-4b,6,6a,7a,10a,11,11a,11b,12,13-decahydrochryseno[2,3-d][1,3]dioxole-2,7(4aH,5H)-dione)

Item no.

USP-1A00500

CAS Number

[1040085-99-1]

Unit

10 mg

Molecular formula

C25H34O6

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USP-1A00510

Budesonide Acetaldehyde Acetal (16alpha,17-[(1RS)-ethylidenebis(oxy)]-11beta,21-dihydroxypregna-1,4-diene-3,20-dione)

Item no.

USP-1A00510

CAS Number

[1040085-98-0]

Unit

25 mg

Molecular formula

C23H30O6

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USP-1A00530

N6-(1-Iminoethyl)-D-lysine ((2R)-2-[(2S)-2-Aminobutanamido]butanamide)

Item no.

USP-1A00530

CAS Number

[1844123-52-9]

Unit

10 mg

Molecular formula

C8H17N3O2

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USP-1A00540

Bis((R)-butyramide) ((R)-2-amino-N-((R)-1-amino-1-oxobutan-2-yl)butanamide)

Item no.

USP-1A00540

CAS Number

[1867585-44-1]

Unit

10 mg

Molecular formula

C8H17N3O2

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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-1A00560

2-Oxo Clopidogrel (Mixture of Diastereomers) (methyl 2-(2-chlorophenyl)-2-(2-oxo-2,6,7,7a-tetrahydrothieno[3,2-c]pyridin-5(4H)-yl)acetate)

Item no.

USP-1A00560

CAS Number

[109904-27-0]

Unit

10 mg

Molecular formula

C16H16ClNO3S

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USP-1A00570

2-Oxo R-Clopidogrel (methyl (2R)-2-(2-chlorophenyl)-2-(2-oxo-2,6,7,7a-tetrahydrothieno[3,2-c]pyridin-5(4H)-yl)acetate)

Item no.

USP-1A00570

CAS Number

[1360923-54-1]

Unit

10 mg

Molecular formula

C16H16ClNO3S

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USP-1A00590

7-Fluoro Risperidone (COLD SHIPMENT REQUIRED) (3-(2-(4-(7-fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)ethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one)

Item no.

USP-1A00590

CAS Number

[n/a]

Unit

10 mg

Molecular formula

C23H27FN4O2

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USP-1A00600

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

Item no.

USP-1A00600

CAS Number

[158697-67-7]

Unit

10 mg

Molecular formula

C23H27F2N3O2

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USP-1A00610

Pemetrexed Glutamide Trisodium Salt (((S)-4-(4-(2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl)benzamido)-4-carboxybutanoyl)-L-glutamic acid, sodium salt)

Item no.

USP-1A00610

CAS Number

[1265908-59-5]

Unit

25 mg

Molecular formula

C25H25N6O9·3Na

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USP-1A00620

Pemetrexed Disodium Enantiomer ((2R)-2-[[4-[2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]amino]pentanedioic acid, sodium salt)

Item no.

USP-1A00620

CAS Number

[937370-10-0]

Unit

25 mg

Molecular formula

C20H19N5O6·2Na

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USP-1A00630

Pemetrexed Acid N-Hydroxysuccinimide Ester (2,5-dioxopyrrolidin-1-yl 4-(2-(2-amino-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl)benzoate)

Item no.

USP-1A00630

CAS Number

[204257-65-8]

Unit

25 mg

Molecular formula

C19H17N5O5

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USP-1A00640

Pemetrexed Dimethyl Ester (dimethyl (4-(2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl)benzoyl)-L-glutamate)

Item no.

USP-1A00640

CAS Number

[155405-81-5]

Unit

25 mg

Molecular formula

C22H25N5O6

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USP-1A00670

Rivaroxaban Open Ring ((R)-5-chloro-N-(2-hydroxy-3-((4-(3-oxomorpholino)phenyl)amino)propyl)thiophene-2-carboxamide)

Item no.

USP-1A00670

CAS Number

[721401-53-2]

Unit

10 mg

Molecular formula

C18H20ClN3O4S

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USP-1A00680

Budesonide 9(11)-ene ((6aS,8aS,8bS,11aR,12aS,12bS)-8b-(2-hydroxyacetyl)-6a,8a-dimethyl-10-propyl-1,2,6a,8,8a,8b,11a,12,12a,12b-decahydro-4H-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-4-one)

Item no.

USP-1A00680

CAS Number

[313474-58-7]

Unit

25 mg

Molecular formula

C25H32O5

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USP-1A00700

Fluticasone Propionate Acid ((6S,8S,9R,10S,11S,13S,14S,16R,17R)-6,9-difluoro-11-hydroxy-10,13,16-trimethyl-3-oxo-17-(propionyloxy)-6,7,8,9,10,11,12,13,14,15, 16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid)

Item no.

USP-1A00700

CAS Number

[65429-42-7]

Unit

25 mg

Molecular formula

C24H30F2O6

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USP-1A00720

Desiodoamiodarone ((2-butylbenzofuran-3-yl)(4-(2-(diethylamino)ethoxy)phenyl)methanone)

Item no.

USP-1A00720

CAS Number

[23551-25-9]

Unit

25 mg

Molecular formula

C25H31NO3

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USP-1A00731

Fexofenadine Olefin (2-(4-(4-(4-(diphenylmethylene)piperidin-1-yl)-1-hydroxybutyl)phenyl)-2-methylpropanoic acid)

Item no.

USP-1A00731

CAS Number

[1187954-57-9]

Unit

25 mg

Molecular formula

C32H37NO3

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USP-1A00750

Tolyloyl Bromopropionamide (3-bromo-N,N-dimethyl-4-oxo-4-(p-tolyl)butanamide)

Item no.

USP-1A00750

CAS Number

[836627-56-6]

Unit

25 mg

Molecular formula

C13H16BrNO2

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USP-1A00810

Atorvastatin Sodium Pyrrolidone Analog ((3R,5R)-5-(4-Fluorophenyl)-2,3-dihydro-3,5-dihydroxy-3-(1-methylethyl)-2-oxo-4-phenyl-3-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic Acid Sodium Salt)

Item no.

USP-1A00810

CAS Number

[148217-40-7]

Unit

25 mg

Molecular formula

C33H34FN2NaO6

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USP-1A00820

Atorvastatin Pyrrolidone Lactone (5-(4-Fluorophenyl)-1-{2-[(2R,4R)-4-hydroxy-6-oxotetrahydro-2H-pyran-2-yl]ethyl}-3-isopropyl-2-oxo-N,4-diphenyl-2,3-dihydro-1H-pyrrole-3-carboxamide)

Item no.

USP-1A00820

CAS Number

[906552-19-0]

Unit

25 mg

Molecular formula

C33H33FN2O5

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USP-1A00900

4-Methylacetophenone (1-(4-Methylphenyl)-1-ethanone (4'-Methylacetophenone))

Item no.

USP-1A00900

CAS Number

[122-00-9]

Unit

25 mg

Molecular formula

C9H10O

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USP-1A00910

Celecoxib Open Ring (4-((1,1,1-trifluoro-4-hydroxy-4-(p-tolyl)but-3-en-2-ylidene)amino)benzenesulfonamide)

Item no.

USP-1A00910

CAS Number

[n/a]

Unit

25 mg

Molecular formula

C17H15F3N2O3S

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USP-1A00920

Desaryl Celecoxib (5-(p-tolyl)-3-(trifluoromethyl)-1H-pyrazole)

Item no.

USP-1A00920

CAS Number

[948293-46-7]

Unit

25 mg

Molecular formula

C11H9F3N2

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