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USP - United States Pharmacopeia Pharmaceutical Analytical Impurities

788 products found

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USP-1A00010

Atorvastatin Ethyl Ester (ethyl (3R,5R)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate)

Item no.

USP-1A00010

CAS Number

[1146977-93-6]

Unit

25 mg

Molecular formula

C35H39FN2O5

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USP-1A00020

Atorvastatin Methyl Ester (methyl (3R,5R)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate)

Item no.

USP-1A00020

CAS Number

[345891-62-5]

Unit

25 mg

Molecular formula

C34H37FN2O5

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USP-1A00030

Amlodipine Methyl Analog (dimethyl 2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate, maleate)

Item no.

USP-1A00030

CAS Number

[400024-11-5]

Unit

25 mg

Molecular formula

C19H23ClN2O5 · C4H4O4

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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-1A00050

Rosuvastatin Ketone ((R,E)-7-(4-(4-fluorophenyl)-6-isopropyl-2-(N-methylmethylsulfonamido)pyrimidin-5-yl)-3-hydroxy-5-oxohept-6-enoic acid)

Item no.

USP-1A00050

CAS Number

[1422619-13-3]

Unit

25 mg

Molecular formula

C22H26FN3O6S

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USP-1A00060

Desmethoxy Omeprazole (2-(((3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-5-methoxy-1H-benzo[d]imidazole)

Item no.

USP-1A00060

CAS Number

[110374-16-8]

Unit

25 mg

Molecular formula

C16H17N3O2S

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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-1A00080

3'-De(dimethylamino)-3'-oxoazithromycin

Item no.

USP-1A00080

CAS Number

[612069-25-7]

Unit

25 mg

Molecular formula

C36H65NO13

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USP-1A00100

6alpha-Hydroxy ethinyl estradiol (COLD SHIPMENT REQUIRED) (19-Nor-17alpha-pregna-1,3,5(10)-trien-20-yne-3,6alpha,17-triol)

Item no.

USP-1A00100

CAS Number

[27521-34-2]

Unit

25 mg

Molecular formula

C20H24O3

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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-1A00170

Rosuvastatin Isoamyl Ester ((3S,5R,6E)-7-[4-(4-flurophenyl)-6-(1-methylethyl)-2-[N-methyl(methylsulphonyl)amino]-5-pyrimidinyI]-3,5-dihydroxy-6-heptanoic acid, methyl butyl ester)

Item no.

USP-1A00170

CAS Number

[1197348-98-3]

Unit

25 mg

Molecular formula

C27H38FN3O6S

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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-1A00190

Quetiapine Desethoxy (COLD SHIPMENT REQUIRED) (2-[4-(dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl]ethanol)

Item no.

USP-1A00190

CAS Number

[329216-67-3]

Unit

25 mg

Molecular formula

C19H21N3OS

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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-1A00220

Desoximetasone Acid (COLD SHIPMENT) ((11Beta,16alpha,17Beta)-9-Fluoro-11-hydroxy-16-methyl-3-oxoandrosta-1,4- diene-17-carboxylic acid, 9-Fluoro-11Beta-hydroxy-16alpha-methyl-3-oxoandrosta-1,4-diene-17Beta-carboxylic acid)

Item no.

USP-1A00220

CAS Number

[75262-69-0]

Unit

25 mg

Molecular formula

C21H27FO4

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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-1A00310

Hydroxyisobutyl Acetophenone (COLD SHIPMENT REQUIRED) (1-(4-(1-hydroxy-2-methylpropyl)phenyl)ethan-1-one)

Item no.

USP-1A00310

CAS Number

[1314907-71-5]

Unit

25 mg

Molecular formula

C12H16O2

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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-1A00330

Amoxicilloic amoxilloic acid dimers 1, 2, 3, and 4

Item no.

USP-1A00330

Unit

5 mg

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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-1A00370

R-Levetiracetam Hydroxybutyramide Analog ((R)-N-(1-amino-1-oxobutan-2-yl)-4-hydroxybutanamide)

Item no.

USP-1A00370

CAS Number

[1847568-87-9]

Unit

10 mg

Molecular formula

C8H16N2O3

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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-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-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-1A05190

N-Nitrosodiphenylamine (NDPh) (N,N-Diphenylnitrosoamine)

Item no.

USP-1A05190

Unit

10 mg

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USP-1A06330

7,8-Dihydrofolic Acid ((4-(((2-amino-4-oxo-3,4,7,8-tetrahydropteridin-6-yl)methyl)amino)benzoyl)-L-glutamic acid)

Item no.

USP-1A06330

Unit

25 mg

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USP-1A07740

Clozapine Benzoyl Methylpiperazine Analog (1-[2-[(2-Amino-4-chlorophenyl)amino]benzoyl]-4-methylpiperazine)

Item no.

USP-1A07740

Unit

25 mg

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USP-1A08340

Ceftriaxone Benzothiazolyloxime ((Z)-S-Benzothiazol-2-yl 2-(2-aminothiazol-4-yl)-2-(methoxyimino)thioacetate)

Item no.

USP-1A08340

Unit

25 mg

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