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USP - United States Pharmacopeia Pharmaceutical Analytical Impurities

1028 products found

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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-1A00330

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

Item no.

USP-1A00330

Unit

5 mg

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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-1A00420

Clopidogrel Diester Analog (R)-1-(2-chlorophenyl)-2-methoxy-2-oxoethyl (S)-2-(2-chlorophenyl)-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)acetate, sulfate

Item no.

USP-1A00420

CAS Number

[1421283-60-4] (free base)

Unit

10 mg

Molecular formula

C24H21Cl2NO4S·H2SO4

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USP-1A00430

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

Item no.

USP-1A00430

CAS Number

[141109-18-4]

Unit

10 mg

Molecular formula

C15H16ClNO2S·HCl

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USP-1A00440

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

Item no.

USP-1A00440

CAS Number

[1868118-63-1]

Unit

10 mg

Molecular formula

C8H16N2O3

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USP-1A00490

Amoxicilloic Acid Dimers 1 and 2

Item no.

USP-1A00490

CAS Number

[2088961-38-8]

Unit

10 mg

Molecular formula

C32H40N6O11S2

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USP-1A00520

5-Fluoro Risperidone (3-(2-(4-(5-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-1A00520

CAS Number

[1199589-74-6]

Unit

25 mg

Molecular formula

C23H27FN4O2

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USP-1A00580

4-Fluoro Risperidone (COLD SHIPMENT REQUIRED) (3-(2-(4-(4-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-1A00580

CAS Number

[n/a]

Unit

10 mg

Molecular formula

C23H27FN4O2

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USP-1A00660

Rivaroxaban Phthalamide (N1,N2-bis(((S)-2-oxo-3-(4-(3-oxomorpholino)phenyl)oxazolidin-5-yl)methyl)phthalamide)

Item no.

USP-1A00660

CAS Number

[1365267-36-2]

Unit

25 mg

Molecular formula

C36H36N6O10

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USP-1A00690

Bromobudesonide ((6aS,6bR,7S,8aS,8bS,11aR,12aS,12bS)-6b-bromo-7-hydroxy-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-1A00690

CAS Number

[313474-59-8]

Unit

25 mg

Molecular formula

C25H33BrO6

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USP-1A00760

Atorvastatin 3-deoxyhept-2-enoic Acid ((S,E)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-5-hydroxyhept-2-enoic acid)

Item no.

USP-1A00760

CAS Number

[1105067-93-3]

Unit

25 mg

Molecular formula

C33H33FN2O4

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USP-1A00770

Diamino Atorvastatin Calcium (Calcium (3R,5R)-7-[[(3R,5R)-7-[2-(4-fluorophenyl)-5-(1-methylethyl)-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoyl]amino]-3,5-dihydroxyheptanoate)

Item no.

USP-1A00770

CAS Number

[1105067-87-5]

Unit

25 mg

Molecular formula

C40H47FN3O8 . 1/2Ca

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USP-1A00790

Atorvastatin Calcium Epoxy Pyrrolooxazin 7-Hydroxy Analog (Calcium 4-(1b-(4-fluorophenyl)-7-hydroxy-7-isopropyl-1a-phenyl-7a-(phenylcarbamoyl)hexahydro-3H-oxireno[2',3':3,4]pyrrolo[2,1-b][1,3]oxazin-3-yl)-3-hydroxybutanoate)

Item no.

USP-1A00790

CAS Number

[n/a]

Unit

25 mg

Molecular formula

C66H68CaF2N4O14 (2C33H34CFN2O7.Ca)

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USP-1A00800

Atorvastatin Epoxy Tetrahydrofuran Analog (4-(4-Fluorophenyl)-2,4-dihydroxy-2-(1-methylethyl)-N,5-diphenyl-3,6-dioxabicyclo[3.1.0]hexane-1-carboxamide)

Item no.

USP-1A00800

CAS Number

[873950-19-7]

Unit

25 mg

Molecular formula

C26H24FNO5

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USP-1A00830

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

Item no.

USP-1A00830

CAS Number

[134395-00-9]

Unit

25 mg

Molecular formula

C37H43FN2O5

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USP-1A00840

3'-Demethyl-3'-N-[(4-methylphenyl)sulfonyl]azithromycin

Item no.

USP-1A00840

CAS Number

[612069-31-5]

Unit

25 mg

Molecular formula

C44H76N2O14S

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USP-1A00850

Azithromycin B (3-deoxyazithromycin) (COLD SHIPMENT REQUIRED)

Item no.

USP-1A00850

CAS Number

[307974-61-4]

Unit

25 mg

Molecular formula

C38H72N2O11

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USP-1A00860

Azithromycin C (3''-O-demethylazithromycin)

Item no.

USP-1A00860

CAS Number

[620169-47-3]

Unit

25 mg

Molecular formula

C37H70N2O12

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USP-1A00880

16alpha-Hydroxyprednisolone ((8S,9S,10R,11S,13S,14S,16R,17S)-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one)

Item no.

USP-1A00880

CAS Number

[13951-70-7]

Unit

25 mg

Molecular formula

C21H28O6

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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-1A00930

Methyl p-Toluate (Methyl 4-methylbenzoate)

Item no.

USP-1A00930

CAS Number

[99-75-2]

Unit

25 mg

Molecular formula

C9H10O2

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USP-1A00950

Duloxetine beta-Naphthol-1-yl Isomer (2-(3-(Methylamino)-1-(thiophen-2-yl)propyl)naphthalen-1-ol)

Item no.

USP-1A00950

CAS Number

[1033803-59-6]

Unit

50 mg

Molecular formula

C18H19NOS

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USP-1A00970

N-Methyl Duloxetine Oxalate ((S)-N,N-dimethyl-3-(naphthalen-1-yloxy)-3-(thiophen-2-yl)propan-1-amine, oxalate)

Item no.

USP-1A00970

CAS Number

[132335-47-8]

Unit

25 mg

Molecular formula

C19H21NOS·C2H2O4 (C21H23NO5S)

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USP-1A00980

Fexofenadine Chloro Analog (Methyl 4-(4-Chloro-1-oxobutyl)-alpha,alpha-dimethylphenylacetate)

Item no.

USP-1A00980

CAS Number

[154477-54-0]

Unit

25 mg

Molecular formula

C15H19ClO3

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USP-1A00990

Decarboxy Moxifloxacin (1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline) (COLD SHIPMENT REQUIRED)

Item no.

USP-1A00990

CAS Number

[1322062-57-6]

Unit

25 mg

Molecular formula

C20H24FN3O2

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USP-1A01000

Floxacin Amine (7-amino-1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid)

Item no.

USP-1A01000

CAS Number

[172426-88-9]

Unit

25 mg

Molecular formula

C14H13FN2O4

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USP-1A01010

Olanzapine lactam ((Z)-4-(4-methylpiperazin-1-yl)-3-(2-oxopropylidene)-1,3-dihydro-2H-benzo[b][1,4]diazepin-2-one)

Item no.

USP-1A01010

CAS Number

[1017241-34-7]

Unit

25 mg

Molecular formula

C17H20N4O2

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USP-1A01020

Olanzapine thiolactam ((Z)-1-(4-(4-Methylpiperazin-1-yl)-2-thioxo-1,2-dihydro-3H-benzo[b][1,4]diazepin-3-ylidene)propan-2-one)

Item no.

USP-1A01020

CAS Number

[1017241-36-9]

Unit

25 mg

Molecular formula

C17H20N4OS

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USP-1A01030

1,2-Dihydro Fluticasone Propionate

Item no.

USP-1A01030

CAS Number

[105613-90-9]

Unit

25 mg

Molecular formula

C25H33F3O5S

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USP-1A01040

11-Ketofluticasone Propionate ((6S,8S,9R,10S,13S,14S,16R,17R)-6,9-Difluoro-17-(((fluoromethyl)thio)carbonyl)-10,13,16-trimethyl-3,11-dioxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl propionate)

Item no.

USP-1A01040

CAS Number

[1219174-94-3]

Unit

25 mg

Molecular formula

C25H29F3O5S

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USP-1A01050

6-Methyl-4-phenylchromanol (6-Methyl-4-phenylchroman-2-ol)

Item no.

USP-1A01050

CAS Number

[209747-04-6]

Unit

25 mg

Molecular formula

C16H16O2

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USP-1A01060

6-Methyl-4-phenylchromanone (6-Methyl-4-phenylchroman-2-one)

Item no.

USP-1A01060

CAS Number

[40546-94-9]

Unit

25 mg

Molecular formula

C16H14O2

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USP-1A01080

Desethylamiodarone (2-Butyl-3-benzofuranyl-4-[2-(ethylamino)ethoxy]-3,5-diiodophenyl Ketone Hydrochloride)

Item no.

USP-1A01080

CAS Number

[96027-74-6]

Unit

25 mg

Molecular formula

C23H25I2NO3 · HCl

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USP-1A01090

Monoiodoamiodarone ((2-Butylbenzofuran-3-yl){4-[2-(diethylamino)ethoxy]-3-iodophenyl}methanone)

Item no.

USP-1A01090

CAS Number

[85642-08-6]

Unit

50 mg

Molecular formula

C25H30INO3

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USP-1A01100

Deoxystreptamine Kanosaminide (6-O-(3-Amino-3-deoxy-alpha-D-glucopyranosyl)-2-deoxy-D-streptamine)

Item no.

USP-1A01100

CAS Number

[20744-51-8]

Unit

25 mg

Molecular formula

C12H25N3O7

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USP-1A01110

Dehydro Desloratadine (8-chloro-11-(piperidin-4-ylidene)-11H-benzo[5,6]cyclohepta[1,2-b]pyridine)

Item no.

USP-1A01110

CAS Number

[117811-20-8]

Unit

25 mg

Molecular formula

C19H17ClN2

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USP-1A01120

Fluticasone sulfenic 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-carbo(thioperoxoic )O-acid)

Item no.

USP-1A01120

CAS Number

[948566-12-9]

Unit

25 mg

Molecular formula

C24H30F2O6S

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USP-1A01140

Pemetrexed Acid (4-(2-(2-amino-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl)benzoic acid)

Item no.

USP-1A01140

CAS Number

[137281-39-1]

Unit

25 mg

Molecular formula

C15H14N4O3

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USP-1A01150

Pemetrexed Glutamide Sodium ((S)-4-((S)-4-(4-(2-(2-amino-4-oxo-4,7-dihydro-3H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl)benzamido)-4-carboxybutanamido)-4-carboxybutanoate, sodium salt)

Item no.

USP-1A01150

CAS Number

[144051-68-3] (free acid)

Unit

25 mg

Molecular formula

C25H27N6O9. Na

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USP-1A01180

Chlorothiophene carboxylic acid (5-chlorothiophene-2-carboxylic acid)

Item no.

USP-1A01180

CAS Number

[24065-33-6]

Unit

25 mg

Molecular formula

C5H3ClO2S

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USP-1A01190

Rivaroxaban N-acyl glycolic acid ((S)-2-(2-(5-chloro-N-(4-(5-((5-chlorothiophene-2-carboxamido)methyl)-2-oxooxazolidin-3-yl)phenyl)thiophene-2-carboxamido)ethoxy)acetic acid)

Item no.

USP-1A01190

CAS Number

[1151893-81-0]

Unit

25 mg

Molecular formula

C24H21Cl2N3O7S2

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USP-1A01210

Deoxyprednisolone-16-ene Acetate (2-((8S,9S,10R,11S,13S,14S)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate)

Item no.

USP-1A01210

CAS Number

[3044-42-6]

Unit

25 mg

Molecular formula

C23H28O

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USP-1A01220

16Alpha-Hydroxy Prednisolone-14-ene Acetate (2-Oxo-2-((8R,9S,10R,11S,13S,16R,17S)-11,16,17-trihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,16,17-decahydro-3H-cyclopenta[a]phenanthren-17-yl)ethyl acetate)

Item no.

USP-1A01220

CAS Number

[131918-72-4]

Unit

25 mg

Molecular formula

C23H28O7

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USP-1A01240

16Alpha-Hydroxy-11-keto Prednisolone Acetate (2-((8S,9S,10R,13S,14S,16R,17S)-16,17-dihydroxy-10,13-dimethyl-3,11-dioxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate)

Item no.

USP-1A01240

CAS Number

[3949-79-9]

Unit

25 mg

Molecular formula

C23H28O7

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USP-1A01250

16Alpha-Hydroxy-11-keto Prednisolone (8S,9S,10R,13S,14S,16R,17S)-16,17-dihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-7,8,9,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthrene-3,11(6H)-dione)

Item no.

USP-1A01250

CAS Number

[3754-05-0]

Unit

25 mg

Molecular formula

C21H26O6

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USP-1A01280

16Alpha-Hydroxy Prednisolone-9(11)-ene Diacetate (2-((8S,10S,13S,14S,16R,17S)-16-acetoxy-17-hydroxy-10,13-dimethyl-3-oxo-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate)

Item no.

USP-1A01280

CAS Number

[95943-95-6]

Unit

25 mg

Molecular formula

C25H30O7

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USP-1A01330

Bis(2-methylaminoethyl) Ether Hydrochloride (2,2'-oxybis(N-methylethan-1-amine), hydrochloride)

Item no.

USP-1A01330

CAS Number

[295796-12-2]

Unit

25 mg

Molecular formula

C6H16N2O·2HCl

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USP-1A01370

Budesonide 21-butyrate (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-oxoethyl butyrate)

Item no.

USP-1A01370

CAS Number

[2408495-96-3]

Unit

25 mg

Molecular formula

C29H40O7

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USP-1A01420

Desonide 21-Acetate (2-((6aR,6bS,7S,8aS,8bS,11aR,12aS,12bS)-7-Hydroxy-6a,8a,10,10-tetramethyl-4-oxo-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-oxoethyl acetate)

Item no.

USP-1A01420

CAS Number

[25092-25-5]

Unit

25 mg

Molecular formula

C26H34O7

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