Impurities

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

Butamirate Impurity A

CAS Number

140-82-9

Alternate CAS Number

Butamirate

Butamirate N-Oxide

CAS Number

Butamirate

Pantoprazole Standard

CAS Number

102625-70-7(free base)

Alternate CAS Number

138786-67-1(Na salt); 164579-32-2 (Sesquihydrate); 1022083-88-0(Hemi-magnesium salt)

Pantoprazole

Pantoprazole Related Compounds D & F Mixture

CAS Number

Pantoprazole

3,4-Dimethoxy-2-pyridinemethanol

CAS Number

72830-08-1

Alternate CAS Number

Pantoprazole

2-(Chloromethyl)-3,4-dimethoxypyridine

CAS Number

169905-10-6(base)

Alternate CAS Number

72830-09-2(HCl Salt)

Pantoprazole

4-Chloro-3-methoxy-2-methylpyridine N-oxide

CAS Number

122307-41-9

Pantoprazole

5-(Difluoromethoxy)-1-((3,4-dimethoxypyridin-2-yl)methyl)-1,3-dihydro-2H-benzo[d]imidazole-2-thione

CAS Number

2641897-00-7

Pantoprazole

4-Chloro-2-(chloromethyl)-3-methoxypyridine

CAS Number

409098-85-7 (free base)

Alternate CAS Number

503058-51-3(HCl salt)

Pantoprazole

2-(((4-Chloro-3-methoxypyridin-2-yl)methyl)thio)-6-(difluoromethoxy)-1H-benzo[d]imidazole

CAS Number

368890-20-4 (free base)

Alternate CAS Number

1802402-61-4 (hydrate) ; 1250376-59-0 (HCl salt)

Pantoprazole

4-(Difluoromethoxy)-2-nitroaniline

CAS Number

C7H6F2N2O3

Alternate CAS Number

Pantoprazole

5-Methoxy-1-methyl-1,3-dihydro-2H-benzo[d]imidazole-2-thione

CAS Number

58764-00-4

Alternate CAS Number

Pantoprazole

Pantoprazole Related Compound F

CAS Number

721924-06-7

Alternate CAS Number

Pantoprazole

Ornidazole Isomer

CAS Number

14419-11-5

Alternate CAS Number

Ornidazole

2-Methyl-5-nitroimidazole

CAS Number

696-23-1

Alternate CAS Number

Ornidazole

2-Methyl-5-nitro-1-(2-oxiranylmethyl)-1H-imidazole

CAS Number

16773-52-7

Alternate CAS Number

Ornidazole

Bosentan Sodium

CAS Number

150726-52-6

Bosentan

Bosentan Potassium

CAS Number

1174918-31-0

Bosentan

Hydroxyethoxyethyl bosentan

CAS Number

1257099-43-6

Bosentan

Trityl candesartan cilexetil

CAS Number

170791-09-0

Candesartan Cilexetil

Candesartan Cilexetil Related Compound - B

CAS Number

869631-11-8

Candesartan Cilexetil

Candesartan Cilexetil Related Compound - D

CAS Number

1185256-03-4

Candesartan Cilexetil

Candesartan Cilexetil Related Compound - F

CAS Number

914613-36-8

Candesartan Cilexetil

Candesartan Cilexetil EP Impurity - I

CAS Number

139481-69-9

Candesartan Cilexetil

N-Cilexetil Candesartan Ethyl Ester

CAS Number

1391054-45-7

Candesartan Cilexetil

1-Chloroethyl Cyclohexyl Carbonate

CAS Number

99464-83-2

Candesartan Cilexetil

Candesartan Bromo N2-Trityl Impurity

CAS Number

133051-88-4

Candesartan Cilexetil

Candesartan Cilexetil Impurity - C

CAS Number

1185255-99-5

Candesartan Cilexetil

Candesartan Cilexetil Impurity - E

CAS Number

914613-35-7

Candesartan Cilexetil

Ibrutinib Dimer Impurity

CAS Number

2031255-23-7

Ibrutinib

Ibrutinib N1-Oxide

CAS Number

2437254-47-0

Ibrutinib

(R)-N-Desacryloyl N-Propionyl Ibrutinib

CAS Number

1839099-22-7

Ibrutinib

Ibrutinib-N-Acetyl Analog

CAS Number

1288338-95-3

Ibrutinib

1,3-bis((R)-3-(4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)propan-1-one

CAS Number

1987905-93-0

Ibrutinib

(R)-1-(3-(4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)-3-chloropropan-1-one

CAS Number

1288338-96-4

Ibrutinib

(S)-1-Boc-3-Hydroxypiperidine

CAS Number

143900-44-1

Ibrutinib

1-Methyl-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine

CAS Number

2213398-75-3

Ibrutinib

(R)-8-(1-Acryloylpiperidin-3-yl)-10-(4-phenoxyphenyl)-3,4-dihydropyrazolo[4,3-e]pyrimido[1,2-c]pyrimidin-2(8H)-one

CAS Number

1917333-91-5

Ibrutinib

Irbesartan Nitroso Impurity

CAS Number

2768787-11-5

Irbesartan

5-Phenyl-1H-tetrazole

CAS Number

18039-42-4

Irbesartan

4'-(Azidomethyl)-[1,1'-biphenyl]-2-methanoic acid

CAS Number

2758005-15-9

Irbesartan

4'-(Azidomethyl)-[1,1'-biphenyl]-2-carbonitrile

CAS Number

133690-91-2

Irbesartan

1,3-Dioxolane-4-methanol, 2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-, 4-methanesulfonate, (2R,4S)-rel-

CAS Number

854372-78-4

Itraconazole

4-(4-(4-Methoxyphenyl)piperazin-1-yl)aniline

CAS Number

74852-62-3

Itraconazole

Itraconazole Hydroxy Isopropyltriazolone Impurity

CAS Number

89848-19-1

Itraconazole

Phenyl (4-(4-(4-methoxyphenyl)piperazin-1-yl)phenyl)carbamate

CAS Number

74853-06-8

Itraconazole

Itraconazole Hydroxy Propyltriazolone Impurity

CAS Number

79538-91-3

Itraconazole

Impurities

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