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Pharmazeutische Referenzstandards und Verunreinigungsreferenzstandards

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Structure Chemical Name CAS MF
Itropopa Impurity 17 Itropopa Impurity 17
rac 4-Desmethoxy-4-nitro Omeprazole rac 4-Desmethoxy-4-nitro Omeprazole 317807-10-6 C16H16N4O4S
DesMethyl Erlotinib Carboxylate Acid DesMethyl Erlotinib Carboxylate Acid 882172-60-3 C21H19N3O5
Acyclovir IMpurity J Acyclovir IMpurity J
Acyclovir Impurity O Acyclovir Impurity O
Eltrombopag Impurity 3 Eltrombopag Impurity 3
Azacitidine Impurity EJ Azacitidine Impurity EJ
5-METHOXY-2-(METHYLTHIO)BENZIMIDAZOLE 5-METHOXY-2-(METHYLTHIO)BENZIMIDAZOLE 91168-31-9 C9H10N2OS
2-Pyrazinecarboxylic acid, 6-methyl-, 4-oxide 2-Pyrazinecarboxylic acid, 6-methyl-, 4-oxide 51037-31-1 C6H6N2O3
2-[[(5-hydroxy-1H-benziMidazol-2-yl)sulfinyl]Methyl]-3,5-diMethyl-1-4(1H)-pyridone 2-[[(5-hydroxy-1H-benziMidazol-2-yl)sulfinyl]Methyl]-3,5-diMethyl-1-4(1H)-pyridone C15H15N3O3S
EsoMeprazole iMpurity EsoMeprazole iMpurity 1424857-86-2 C11H15NO3
Eltrombopag Impurity 4 Eltrombopag Impurity 4
Atazanavir Impurity 6 Atazanavir Impurity 6 1006868-81-0 C32H42N4O5
Edoxaban Impurity 20 (1R,2R,4S) Edoxaban Impurity 20 (1R,2R,4S) 1928729-31-0 C16H29N3O7
Acyclovir Impurity 11 Acyclovir Impurity 11
Esomeprazole Impurity 43 Esomeprazole Impurity 43
Azacitidine Impurity 1 Azacitidine Impurity 1
4'-hydroxy-3'-nitro-[1,1'-biphenyl]-3-carboxylic acid 4'-hydroxy-3'-nitro-[1,1'-biphenyl]-3-carboxylic acid 1097777-60-0 C13H9NO5
Edoxaban impurity ABCDEFGHJKL Edoxaban impurity ABCDEFGHJKL
N-ForMyl-D-ribofuranosyl-3-guanylurea (α/β-Mixture) N-ForMyl-D-ribofuranosyl-3-guanylurea (α/β-Mixture) 686299-20-7 C8H14N4O6
(3S,8R,9S,12S)-3,12-Bis(1,1-diMethylethyl)-8-hydroxy-4,11-dioxo-9-(phenylMethyl)-6-[[4-(2-pyridinyl)phenyl]Methyl]-,2,5,6,10,13-pentaazatetradecanedioic Acid 1,14-DiMethyl Ester (3S,8R,9S,12S)-3,12-Bis(1,1-diMethylethyl)-8-hydroxy-4,11-dioxo-9-(phenylMethyl)-6-[[4-(2-pyridinyl)phenyl]Methyl]-,2,5,6,10,13-pentaazatetradecanedioic Acid 1,14-DiMethyl Ester 1292296-09-3 C38H52N6O7
6-AMino-5-azacytidine 6-AMino-5-azacytidine 105331-00-8 C8H13N5O5
Esomeprazole Impurity 26 Esomeprazole Impurity 26 704910-88-3 C15H15N3OS
Acyclovir Impurity 1 Acyclovir Impurity 1
Esomeprazole Impurity Esomeprazole Impurity
Esomeprazole Impurity 27 Esomeprazole Impurity 27
Aciclovir EP Impurity N Aciclovir EP Impurity N
1-(diaminomethylidene)-3-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]urea 1-(diaminomethylidene)-3-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]urea 2508-80-7 C7H14N4O5
Acyclovir Impurity Q Acyclovir Impurity Q
Eltrombopag Impurity 6 Eltrombopag Impurity 6
Esomeprazole Impurity 6 Esomeprazole Impurity 6
5-Methoxy-2-Hydroxy Benzimidazole 5-Methoxy-2-Hydroxy Benzimidazole 208-75-3 C13H9N
2-Pyridinemethanol, 4-hydroxy-3,5-dimethyl- (9CI) 2-Pyridinemethanol, 4-hydroxy-3,5-dimethyl- (9CI) 727375-13-5 C8H11NO2
135270-13-2 135270-13-2 135270-13-2 C12H11F2N3O
Eltrombopag Impurity 5 Eltrombopag Impurity 5
Axitinib Impurity 27 Axitinib Impurity 27 1639137-80-6 C24H20N4O2S
(2R,3R,4R,5R)-2-(4-amino-2-oxo-1,3,5-triazin-1(2H)-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl acetate (2R,3R,4R,5R)-2-(4-amino-2-oxo-1,3,5-triazin-1(2H)-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl acetate C10H14N4O6
Azacitidine Impurity 31 Azacitidine Impurity 31 65024-85-3 C11H16O8
Efinaconazole Impurity 13 Efinaconazole Impurity 13 2055038-61-2 C18H22F2N4O
Acyclovir Impurity 12 Acyclovir Impurity 12
(E)-3'-(2-(1-(3,4-dimethylphenyl) (E)-3'-(2-(1-(3,4-dimethylphenyl)
sodium 5-methoxy-2-sulfinatobenzo[d]imidazol-1-id sodium 5-methoxy-2-sulfinatobenzo[d]imidazol-1-id
Eribulin Impurity 2 Eribulin Impurity 2
2-[(5-CARBOXY-4-METHOXY-3-METHYLPYRID-2-YL)-METHYLSULFO]-5-METHOXYBENZIMIDAZOLE 2-[(5-CARBOXY-4-METHOXY-3-METHYLPYRID-2-YL)-METHYLSULFO]-5-METHOXYBENZIMIDAZOLE 120003-72-7 C17H17N3O5S
5-Methoxy-2-[[(4-Methoxy-3,5-diMethyl-2-pyridinyl)Methyl]thio]-1H-benziMidazole N-Oxide 5-Methoxy-2-[[(4-Methoxy-3,5-diMethyl-2-pyridinyl)Methyl]thio]-1H-benziMidazole N-Oxide 142885-92-5 C17H19N3O3S
Iguratimod Impurity 5 Iguratimod Impurity 5 84594-95-6 C13H11NO4
Pyridine, 4-chloro-2-(chloromethyl)-3,5-dimethyl-, hydrochloride Pyridine, 4-chloro-2-(chloromethyl)-3,5-dimethyl-, hydrochloride 143016-68-6 C8H10Cl3N
2-METHYLPYRAZINE 1,4-DIOXIDE 2-METHYLPYRAZINE 1,4-DIOXIDE 32046-26-7 C5H6N2O2
Esomeprazole Impurity 28 Esomeprazole Impurity 28
Iguratimod Iguratimod 123663-50-3 C18H16N2O6S
Idebenone Impurity 5 Idebenone Impurity 5 88543-33-3 C18H28O5
Esomeprazole Impurity 41 Esomeprazole Impurity 41
Esomeprazole Impurity 34 Esomeprazole Impurity 34
ACICLOVIR, Impurity J ACICLOVIR, Impurity J
Benzylpenicillin EP Impurity Benzylpenicillin EP Impurity 5985-13-7 C16H19N2NaO5S
4,4,4-TRIFLUORO-1-(3-METHYLPHENYL)-1,3-BUTANEDIONE 4,4,4-TRIFLUORO-1-(3-METHYLPHENYL)-1,3-BUTANEDIONE 53764-99-1 C11H9F3O2
DU 6856 DU 6856 127254-11-9 C19H18ClF2N3O3
(3S,5R,6E)-7-[2-Cyclopropyl-4-(4-fluorophenyl)-3-quinolinyl]-3,5-dihydroxy-6-heptenoic acid (3S,5R,6E)-7-[2-Cyclopropyl-4-(4-fluorophenyl)-3-quinolinyl]-3,5-dihydroxy-6-heptenoic acid 254452-86-3 C25H24FNO4
(E)-4-Acetoxy Tamoxifen (E)-4-Acetoxy Tamoxifen 76117-70-9 C28H31NO3
O-Acetyl Losartan O-Acetyl Losartan 1006062-27-6 C24H25ClN6O2
(2-Chloro-5-iodophenyl)(4-ethoxyphenyl)methanone (2-Chloro-5-iodophenyl)(4-ethoxyphenyl)methanone 1103738-26-6 C15H12ClIO2
3-Dechloro-4-chloro Lamotrigine 3-Dechloro-4-chloro Lamotrigine 38943-76-9 C9H7Cl2N5
D-2’-Deoxyribofuranosyl-3-guanylurea (α/β-Mixture) D-2’-Deoxyribofuranosyl-3-guanylurea (α/β-Mixture) 570410-72-9 C7H14N4O4
rac 5-Keto Fluvastatin rac 5-Keto Fluvastatin 1160169-39-0 C24H24FNO4
9-Piperazino Ofloxacin 9-Piperazino Ofloxacin 197291-75-1 C18H20FN3O4
Thyroxine-4-hydroxy-3,5-diiodophenyl Ether DISCONTINUED Thyroxine-4-hydroxy-3,5-diiodophenyl Ether DISCONTINUED 911661-90-0 C21H13I6NO5
(S)-Ethyl 2-((3S,5aS,9aS,10aS)-3-methyl-1,4-dioxodecahydropyrazino[1,2-a]indol-2(1H)-yl)pentanoate ,95% (S)-Ethyl 2-((3S,5aS,9aS,10aS)-3-methyl-1,4-dioxodecahydropyrazino[1,2-a]indol-2(1H)-yl)pentanoate ,95% 129970-98-5 C19H30N2O4
Exemestane Impurity A Exemestane Impurity A
(1R,3S)-1-(1,3-Benzodioxol-5-yl)-2-(2-chloroacetyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic Acid Methyl Ester (1R,3S)-1-(1,3-Benzodioxol-5-yl)-2-(2-chloroacetyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic Acid Methyl Ester 629652-44-4 C22H19ClN2O5
3-DesMorpholinyl-3-hydroxyethylaMino Gefitinib 3-DesMorpholinyl-3-hydroxyethylaMino Gefitinib 847949-56-8 C20H22ClFN4O3
4-Deschloro-4-(2-furanylMethyl)aMino FuroseMide 4-Deschloro-4-(2-furanylMethyl)aMino FuroseMide 5046-19-5 C17H17N3O6S
Cephalexin Sulfoxide Cephalexin Sulfoxide 56193-21-6 C16H17N3O5S
N-Butyl Nor ScopolaMine Hydrochloride N-Butyl Nor ScopolaMine Hydrochloride 22235-98-9 C20H28ClNO4
11β-Hydroxy Dienogest 11β-Hydroxy Dienogest 86153-39-1 C20H25NO3
2H,5H-Pyrano[4,3-b]pyranyl Mupirocin SodiuM IMpurity 2H,5H-Pyrano[4,3-b]pyranyl Mupirocin SodiuM IMpurity 116182-44-6 C26H43NaO9
3-Hydroxy CitalopraM 3-Hydroxy CitalopraM 411221-53-9 C20H21FN2O2
5-(OxiranylMethoxy)-2,3,4,9-tetrahydrocarbazole 5-(OxiranylMethoxy)-2,3,4,9-tetrahydrocarbazole 58457-32-2 C15H17NO2
6α-Methyl Hydrocortisone 21-HeMisuccinate 6α-Methyl Hydrocortisone 21-HeMisuccinate 119657-85-1 C26H36O8
nicergoline impurity E nicergoline impurity E
Tacrolimus Impurity C Tacrolimus Impurity C
Levodopa impurity 5 Levodopa impurity 5
(R)-N-(5-((R)-2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxypyrrolidine-1-carboxamide (R)-N-(5-((R)-2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxypyrrolidine-1-carboxamide 1223404-68-9 C21H22F2N6O2
Ivabradine Impurity 1 Hydrochloride Ivabradine Impurity 1 Hydrochloride 85175-52-6 C16H25ClN2O3
SofosBuvir Impurity 3 SofosBuvir Impurity 3
Canagliflozin Impurity 10 Canagliflozin Impurity 10 1672658-93-3 C24H25FO6S
Canagliflozin Impurity F Canagliflozin Impurity F
Empagliflozin impurity E Empagliflozin impurity E
Eribulin Impurity 3 Eribulin Impurity 3
Erlotinib IMpurity A Erlotinib IMpurity A 1058132-82-3 C22H25N3O4
O-[(Guanin-9-yl)Methyl] Acyclovir O-[(Guanin-9-yl)Methyl] Acyclovir 166762-90-9 C14H16N10O4
Dehydro Azelnidipine Dehydro Azelnidipine 918659-10-6 C33H32N4O6
Ilaprazole Impurity 1 Ilaprazole Impurity 1
Ilaprazole Impurity 2 Ilaprazole Impurity 2
Esomeprazole Impurity 24 Esomeprazole Impurity 24
Eltrombopag Impurity 7 Eltrombopag Impurity 7
Azacitidine Impurity 37 Azacitidine Impurity 37 206269-46-7 C8H12N4O5
Acetic acid, 2-[[(1S,2R,4S)-4-[(dimethylamino)carbonyl]-2-[[(4,5,6,7-tetrahydro-5-methylthiazolo[5,4-c]pyridin-2-yl)carbonyl]amino]cyclohexyl]amino]-2-oxo-, ethyl ester Acetic acid, 2-[[(1S,2R,4S)-4-[(dimethylamino)carbonyl]-2-[[(4,5,6,7-tetrahydro-5-methylthiazolo[5,4-c]pyridin-2-yl)carbonyl]amino]cyclohexyl]amino]-2-oxo-, ethyl ester 480450-85-9 C21H31N5O5S
4(1H)-Pyridinone, 1-(6-methoxy-1H-benzimidazol-2-yl)-2,3,5-trimethyl- 4(1H)-Pyridinone, 1-(6-methoxy-1H-benzimidazol-2-yl)-2,3,5-trimethyl- 2512216-37-2 C16H17N3O2
6-Chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxanine-8-carboxylic acid 6-Chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxanine-8-carboxylic acid 123040-79-9 C10H8ClNO4
"mixture of 2-amino-9-[[2-(hydroxymethoxy) ethoxy]methyl]-1,9-dihydro-6H-purin-6-one and 2-amino-9-[[2-(hydroxyethoxy)methoxy]methyl]-1,9- dihydro-6H-purin-6-one,"
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