Impurities are undesirable chemical components that remain in the active pharmaceutical ingredient during formulation. Impurities may reduce a product's efficacy.

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Esketamine EP Impurity B

CAS Number
1823362-29-3
Esketamine
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Esketamine EP Impurity C

CAS Number
90717-17-2
Esketamine
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Estradiol benzoate Standard

CAS Number
50-50-0
Estradiol
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Estradiol Benzoate Standard

CAS Number
50-50-0
Estradiol benzoate
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Estriol Standard

CAS Number
50-27-1
Estriol
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Etacrynic acid Standard

CAS Number
58-54-8
Etacrynic acid
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Ethanone-1,2-di Varenicline

CAS Number
2306217-16-1
Varenicline
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141942-85-0

Ethyl (R)-(-)-4-Cyano-3-hydroxybutyrate

CAS Number
141942-85-0
Atorvastatin
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Ethyl (Z)-2-chloro-2-(2-(2-methoxyphenyl)hydrazono)acetate

CAS Number
2228050-22-2
Apixaban
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Ethyl (Z)-2-chloro-2-(2-phenylhydrazono)acetate

CAS Number
1105636-26-7
Apixaban
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1619934-76-7

Ethyl 1-(4-methoxyphenyl)-7a-morpholino-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-3a,4,5,6,7,7a-hexahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylate

CAS Number
1619934-76-7
Apixaban
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27143-09-5

Ethyl 2-chloro-2-(2- (4-chlorophenyl) hydrazono)acetate

CAS Number
27143-09-5
Apixaban
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27143-07-3

Ethyl 2-chloro-2-(2- (4-methoxyphenyl) hydrazono)acetate

CAS Number
27143-07-3
Apixaban
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39562-16-8

Ethyl 3-Nitrobenzylideneacetoacetate

CAS Number
39562-16-8
Lercanidipine hydrochloride
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317595-60-1

Ethyl 4-(1H-benzo[d]imidazol-2-yl)piperidine-1-carboxylate

CAS Number
317595-60-1
Bilastine
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Ethyl 5-methoxy-1H-indazole-3-carboxylate

CAS Number
865887-16-7
Apixaban
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503615-07-4

Ethyl 6-(4-Aminophenyl)-1-(4-methoxyphenyl)-7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylate

CAS Number
503615-07-4
Apixaban
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Ethyl 6-bromo-2,2-dimethylhexanoate

CAS Number
78712-62-6
Bempedoic Acid
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Ethylenediamine p-Toluenesulfonate

CAS Number
14034-59-4
Clonidine
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Ethylmetrienone

Ethylmetrienone

CAS Number
848-04-4
Levonorgestrel
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Etodolac EP Impurity K

Etodolac EP Impurity K

CAS Number
122188-02-7
Etodolac
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Etodolac Standard

CAS Number
41340-25-4
Etodolac
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Etravirine EP Impurity D

CAS Number
939431-68-2
Etravirine
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Etravirine Impurity 7

CAS Number
1263409-98-8
Etravirine
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Everolimus EP Impurity D

CAS Number
2760174-96-5
Everolimus
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Everolimus EP Impurity E

CAS Number
1237826-25-3
Everolimus
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Ezetimibe Impurity E

CAS Number
190595-66-5
Ezetimibe
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Ezetimibe Impurity F

CAS Number
302781-98-2
Ezetimibe
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Ezetimibe Reference Standard

Ezetimibe Standard

CAS Number
163222-33-1
Ezetimibe
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Famotidine EP Impurity G

CAS Number
76823-97-7
Famotidine
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C5H4ClN3O2

Favipiravir Impurity - 6

CAS Number
259793-90-3
Favipiravir
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Favipiravir Impurity 7

CAS Number
2809442-05-3
Favipiravir
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1079990-21-8

Favipiravir Impurity 8

CAS Number
1079990-21-8
Favipiravir
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259793-96-9

Favipiravir Standard

CAS Number
259793-96-9
Favipiravir
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42019-08-9

Fenofibrate Impurity E

CAS Number
42019-08-9
Fenofibrate
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Fenofibrate Related Compound A

CAS Number
42019-78-3
Fenofibrate
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Fenofibrate Related Compound C

CAS Number
217636-48-1
Fenofibrate
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42017-89-0

Fenofibric Acid

CAS Number
42017-89-0
Fenofibrate
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1797121-54-0

Fenofibric Acid 1-Carboxyl-1-methylethyl Ester

CAS Number
1797121-54-0
Fenofibrate
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42019-07-8

Fenofibric Acid Methyl Ester

CAS Number
42019-07-8
Fenofibrate
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Fenoterol Standard

CAS Number
13392-18-2
Alternate CAS Number
130156-24-0 (R,R relative stereochemistry), 69421-37-0 (R,R Absolute Stereochemistry);1944-12-3(HBr salt)
Fenoterol
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Fingolimod Hydrochloride

Fingolimod Hydrochloride Standard

CAS Number
162359-56-0
Fingolimod
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Fingolimod Impurity VII

CAS Number
162358-62-5
Fingolimod
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Flecainide Impurity D

Flecainide Impurity D

CAS Number
35480-52-5
Flecainide
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Flecainide Impurity E

Flecainide Impurity E

CAS Number
57415-36-8
Flecainide
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Fludarabine Standard

CAS Number
21679-14-1
Fludarabine
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Fludarabine Standard

CAS Number
21679-14-1
Alternate CAS Number
75607-67-9(Phosphate salt)
Fludarabine
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Fluocortolone pivalate Standard

CAS Number
29205-06-9
Fluocortolone pivalate
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