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Keywords: 18162-48-6 , 872-50-4 , Methylene Chloride , naphthalene , THF , Titanium Dioxide

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Pharmaceutical Impurity Reference Standards

ChemicalBookProduct Catalog Analytical Chemistry Standard Pharmaceutical Impurity Reference Standards
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Structure Chemical Name CAS MF
Levetiracetam Impurity 25 Levetiracetam Impurity 25
Levosimendan Impurity 7 Levosimendan Impurity 7
Cabozantinib impurity K Cabozantinib impurity K
Crisaborole Impurity 8 Crisaborole Impurity 8
Trifluridine Impurity B Trifluridine Impurity B
Rotigotine Impurity Rotigotine Impurity
Olprinone Impurity 2 Olprinone Impurity 2 106730-62-5 C14H12N4O2
Nicorandil Impurity F Nicorandil Impurity F
Nicorandil Impurity A Nicorandil Impurity A
Evogliptin Impurity 1 Evogliptin Impurity 1
Ondansetron IMpurity 5 Ondansetron IMpurity 5
Plerixafor Impurity 1 Plerixafor Impurity 1
MeropeneM iMpurity 7 MeropeneM iMpurity 7
Afatinib Impurity 50 Afatinib Impurity 50
Brexpiprazole Impurity 34 Brexpiprazole Impurity 34 2247155-42-4 C25H27N3O4S
Cabozantinib Impurity 5 Cabozantinib Impurity 5 104330-60-1 C11H12FNO3
Dronedarone Impurity 9 Dronedarone Impurity 9
Empagliflozin Impurity 58 Empagliflozin Impurity 58
Exemestane Impurity 6 Exemestane Impurity 6 14895-71-7
Gadobutrol Impurity 10 Gadobutrol Impurity 10
Linagliptin Impurity 55 Linagliptin Impurity 55
Oseltamivir Impurity 52 Oseltamivir Impurity 52
Palbociclib Impurity 65 Palbociclib Impurity 65
Pimecrolimus Impurity 1 Pimecrolimus Impurity 1
Rosuvastatin Impurity 99 Rosuvastatin Impurity 99
Terbutaline Impurity 18 Terbutaline Impurity 18
Ticagrelor Impurity 123 Ticagrelor Impurity 123
Tofacitinib Impurity 112 Tofacitinib Impurity 112 2179757-75-4 C12H19N3O2
Trelagliptin Impurity 42 Trelagliptin Impurity 42
Carbocistein Impurity E Carbocistein Impurity E
Tolvaptan Impurity 35 Tolvaptan Impurity 35 1316312-24-9 C10H10ClN
Erythromycin Impurity F Erythromycin Impurity F
Apixaban Impurity 39 Apixaban Impurity 39
Aztreonam Impurity 1 Aztreonam Impurity 1
Axitinib Impurity 1 Axitinib Impurity 1
Aprepitant Impurity 15 Aprepitant Impurity 15
Trelagliptin Impurity 17 Trelagliptin Impurity 17 865759-02-0 C17H20BrFN4O2
Dapoxetine Impurity 1 Dapoxetine Impurity 1 2825577-69-1
Regorafenib Impurity 15 Regorafenib Impurity 15 3083426-64-3
Flomoxef Impurity 2 Flomoxef Impurity 2
Varenicline Impurity 2 Varenicline Impurity 2
Topiroxostat Impurity 5 Topiroxostat Impurity 5
Everolimus Impurity 5 Everolimus Impurity 5
Ibrutinib Impurity 3 Ibrutinib Impurity 3
Canagliflozin Impurity 9 Canagliflozin Impurity 9
Clopidogrel Impurity 14 Clopidogrel Impurity 14 C15H14ClNO2S
Febuxostat Impurity 53 Febuxostat Impurity 53
Cefodizime Impurity C Cefodizime Impurity C
Riociguat IMpurtiy F Riociguat IMpurtiy F
Acrivastine Impurity 1 Acrivastine Impurity 1
Nifedipine impurity 10 Nifedipine impurity 10 10323-98-5 C13H13NO3
Cefminox Sodium impurity E Cefminox Sodium impurity E
Clindamycin Impurity D Clindamycin Impurity D
Fasudil iMpurity C Fasudil iMpurity C
L-erythro-3-(3,4-Dihydroxyphenyl)serine L-erythro-3-(3,4-Dihydroxyphenyl)serine 34047-62-6 C9H11NO5
N1-Losartanyl-losartan (Losartan IMpurity) N1-Losartanyl-losartan (Losartan IMpurity) 230971-71-8 C44H44Cl2N12O
N2-Losartanyl-losartan (Losartan IMpurity) N2-Losartanyl-losartan (Losartan IMpurity) 230971-72-9 C44H44Cl2N12O
N-Ethoxycarbonyl 7-ADCA N-Ethoxycarbonyl 7-ADCA 72820-16-7 C11H14N2O5S
4-PyridinecarboxaMide, N-(2,6-diMethylphenyl)- 4-PyridinecarboxaMide, N-(2,6-diMethylphenyl)- 68280-05-7 C14H14N2O
4-N-Desacetyl-5-N-acetyl OseltaMivir 4-N-Desacetyl-5-N-acetyl OseltaMivir 956267-10-0 C16H28N2O4
rac N-DesMethyl-N-(4-Methoxyphenethyl) Venlafaxine rac N-DesMethyl-N-(4-Methoxyphenethyl) Venlafaxine 1346601-14-6 C25H35NO3
11-Keto Oxcarbazepine 11-Keto Oxcarbazepine 537693-29-1 C15H10N2O3
Isopropyl 4-(3-AMinophenyl)-1,4-dihydro-5-(2-Methoxyethoxycarbonyl)-2,6-diMethylpyridine-3-carboxylate Isopropyl 4-(3-AMinophenyl)-1,4-dihydro-5-(2-Methoxyethoxycarbonyl)-2,6-diMethylpyridine-3-carboxylate 155861-24-8 C21H28N2O5
(E)-Olopatadine (E)-Olopatadine 113806-06-7 C21H23NO3
NeMadipine B NeMadipine B 79925-38-5 C19H21Cl2NO4
N-[(3,4-DiMethoxy-2-pyridinyl)Methyl] Pantoprazole N-[(3,4-DiMethoxy-2-pyridinyl)Methyl] Pantoprazole 957470-59-6 C24H24F2N4O6S
4-Epi-6-epi Doxycycline 4-Epi-6-epi Doxycycline 97583-08-9 C22H24N2O8
Ethyl 3,4-O-Isopropylidene-5-O-methanesulfonylshikimate Ethyl 3,4-O-Isopropylidene-5-O-methanesulfonylshikimate 204254-84-2 C13H20O7S
2-PyrazinecarboxaMide, N,N',N''-[2,4,6-boroxintriyltris[[(1R)-3-Methylbutylidene]iMino[(1S)-2-oxo-1-(phenylMethyl)-2,1-ethanediyl]]]tris- 2-PyrazinecarboxaMide, N,N',N''-[2,4,6-boroxintriyltris[[(1R)-3-Methylbutylidene]iMino[(1S)-2-oxo-1-(phenylMethyl)-2,1-ethanediyl]]]tris- 390800-88-1 C57H69B3N12O9
D-hydroxyphenylglycylamoxicillin) D-hydroxyphenylglycylamoxicillin) 188112-75-6 C24H26N4O7S
Salmeterol Related Compound B (10 mg) (4-{1-Hydroxy-2-[6-(4-phenylbutan-2-yloxy)hexylamino]ethyl}-2-(hydroxymethyl)phenol) Salmeterol Related Compound B (10 mg) (4-{1-Hydroxy-2-[6-(4-phenylbutan-2-yloxy)hexylamino]ethyl}-2-(hydroxymethyl)phenol) 108928-81-0 C25H37NO4
N-[3-[3-(1-Piperidinylmethyl)phenoxy]propyl]amine N-[3-[3-(1-Piperidinylmethyl)phenoxy]propyl]amine 73278-98-5 C15H24N2O
7,10-Bis-O-(2,2,2-trichloroethoxycarbonyl)-10-deacetylbaccatin III 7,10-Bis-O-(2,2,2-trichloroethoxycarbonyl)-10-deacetylbaccatin III 95603-44-4 C35H38Cl6O14
4-(3-AMino-phenyl)-Morpholin-3-one 4-(3-AMino-phenyl)-Morpholin-3-one 1082495-22-4 C10H12N2O2
(1R)-2-chloro-1-(3,4-difluorophenyl)-1-ethanol (1R)-2-chloro-1-(3,4-difluorophenyl)-1-ethanol 1212376-05-0 C8H7ClF2O
2-[[(3aR,4S,6R,6aS)-6-[7-Chloro-5-(propylthio)-3H-1,2,3-triazolo[4,5-d]pyrimidin-3-yl]tetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]oxy]-ethanol 2-[[(3aR,4S,6R,6aS)-6-[7-Chloro-5-(propylthio)-3H-1,2,3-triazolo[4,5-d]pyrimidin-3-yl]tetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]oxy]-ethanol 376608-75-2 C17H24ClN5O4S
Fluconazole IMpurity F Fluconazole IMpurity F C13H12F2N6O
Erlotinib IMpurity A Erlotinib IMpurity A 1058132-82-3 C22H25N3O4
Apixaban iMpurity 5 Apixaban iMpurity 5
cefaclor iMpurity C cefaclor iMpurity C 143059-69-2 C15H14ClN3O4S
ceftazidiMe iMpurity B ceftazidiMe iMpurity B 1236700-64-3
pidotiMod iMpurity D pidotiMod iMpurity D 162148-15-4 C9H12N2O4S
Irinotecan Hydroxyl Acid Irinotecan Hydroxyl Acid 142677-15-4 C22H22N2O6
CyclopropanaMine, 2-(4-fluorophenyl)-(hydrochloride)(1:1),(1R,2S)- CyclopropanaMine, 2-(4-fluorophenyl)-(hydrochloride)(1:1),(1R,2S)- 1314324-00-9 C9H11ClFN
(1S,2S,3R,5S)-3-(7-(((1R,2S)-2-(3,4-difluorophenyl)cyclopropyl)aMino)-5-(propylsulfinyl)-3H-[1,2,3]triazolo[4,5-d]pyriMidin-3-yl)-5-(2-hydroxyethoxy)cyclopentane-1,2-diol (1S,2S,3R,5S)-3-(7-(((1R,2S)-2-(3,4-difluorophenyl)cyclopropyl)aMino)-5-(propylsulfinyl)-3H-[1,2,3]triazolo[4,5-d]pyriMidin-3-yl)-5-(2-hydroxyethoxy)cyclopentane-1,2-diol 1644461-85-7 C23H28F2N6O5S
AtracuriuM IMpurity C (Mixture of DiastereoMers) AtracuriuM IMpurity C (Mixture of DiastereoMers) 86293-35-8
AtracuriuM IMpurity E (cis-Quaternary Acid) AtracuriuM IMpurity E (cis-Quaternary Acid)
AztreonaM IMpurity B AztreonaM IMpurity B
Ceftriaxone IMpurit E Ceftriaxone IMpurit E
Cetirizine IMpurity-6 Cetirizine IMpurity-6 C21H25ClN2O3
Cinacalcet IMpurity 10 Cinacalcet IMpurity 10 1809324-40-0 C29H28F3NO2S
Dasatinib IMpurity 5 Dasatinib IMpurity 5
AlviMopan iMpurity AlviMopan iMpurity
Caspofungin iMpurity Caspofungin iMpurity 146669-22-9
Saxagliptin iMpurity Saxagliptin iMpurity 2173146-35-3 C18H23N3O2.ClH
Chlorocriptine Chlorocriptine 68944-88-7 C32H40ClN5O5
PD 312237 PD 312237 501666-23-5 C20H35NO11
(1R,5S,6S)-rel-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Methyl Ester (1R,5S,6S)-rel-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Methyl Ester 1234858-94-6 C13H20O4
Cefminox Impurity D Cefminox Impurity D
SORAFENIB N-OXIDE SORAFENIB N-OXIDE 583840-03-3 C21H16ClF3N4O4
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