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Analytische Chemie

Die analytische Chemie ist ein Teilgebiet der Chemie mit dem Ziel chemische Substanzen zu identifizieren sowie deren Menge zu bestimmen. Demnach umfasst die analytische Chemie die qualitative Analyse, die quantitative Analyse und die Strukturanalytik. Bei der qualitativen Analyse wird untersucht, ob bestimmte chemische Elemente oder Verbindungen in einer Probe nachweisbar sind. Bei der quantitativen Analyse wird die Menge eines chemischen Elements oder einer Verbindung bestimmte und bei der Strukturanalytik wird die chemische Struktur der Elemente und Verbindungen ermittelt. Die häufigsten Einsatzgebiete der analytischen Chemie sind die Umweltanalytik, die Lebensmittelanalytik sowie die Prozesskontrolle und -regelung. In der Umweltanalytik werden Boden, Luft und Wasser analysiert, um z. B. Schwermetalle, Abgase oder Pestizide zu bestimmen. In der Lebensmittelanalytik werden Lebensmittel z.B. nach Schwermetallen oder Chemikalienrückstände untersucht. Bei der Prozesskontrolle und Prozessregelung wird z. B. die Produktausbeute überwachtet oder die Produktqualität kontrolliert.

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Structure Chemical Name CAS MF
Ilaprazole Impurity Ilaprazole Impurity 1018229-53-2 C11H9N3O
Eltrombopag Impurity 2 Eltrombopag Impurity 2
Acyclovir Impurity 13 Acyclovir Impurity 13
Azacitidine Impurity 3 Azacitidine Impurity 3
Acyclovir IMpurity C Acyclovir IMpurity C 91702-61-3 C8H11N5O3
Axitinib Impurity 4 Axitinib Impurity 4 1443118-73-7 C22H20N4OS
Esomeprazole EP Impurity Esomeprazole EP Impurity
Acyclovir Impurity I: 7,9'-[Ethylene-bis(oxymethylene)] Bis (2-amino-1-9-dihydro-6H-purin-6-one) Acyclovir Impurity I: 7,9'-[Ethylene-bis(oxymethylene)] Bis (2-amino-1-9-dihydro-6H-purin-6-one) 1797832-75-7 C14H16N10O4
2(1H)-Pyridinone, 3,4-dihydro- 2(1H)-Pyridinone, 3,4-dihydro- 57147-25-8 C5H7NO
5-METHOXY-2-BENZIMIDAZOLINONE 5-METHOXY-2-BENZIMIDAZOLINONE 2080-75-3 C8H8N2O2
someprazole Impurity 19 someprazole Impurity 19 358675-51-1 C16H17N3O3S
Azacitidine Impurity 34 Azacitidine Impurity 34 105330-94-7 C9H14N4O5
ammonium 1-(5-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylate ammonium 1-(5-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylate 2227107-89-1 C16H18N4O4
Esomeprazole Impurity 42 Esomeprazole Impurity 42
Efinaconazole Related Impurity 13 Efinaconazole Related Impurity 13 2055912-03-1 C24H32FN5O
Acyclovir impurity R Acyclovir impurity R
(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole compound with 6-methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole (1:1) (((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole compound with 6-methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole (1:1)
Esomeprazole Impurity 3 Esomeprazole Impurity 3 1346599-85-6 C26H30N4O4S
Eltrombopag Impurity 8 Eltrombopag Impurity 8
(2R,3R,4R,5R)-2-(4-amino-2-oxo (2R,3R,4R,5R)-2-(4-amino-2-oxo 1415316-72-1 C12H16N4O7
4-amino-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one compound with (2R,3S,4R,5S)-2-(hydroxymethyl)-5-methyltetrahydrofuran-3,4-diol 4-amino-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one compound with (2R,3S,4R,5S)-2-(hydroxymethyl)-5-methyltetrahydrofuran-3,4-diol
Acyclovir Impurity 15 Acyclovir Impurity 15
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 2826359-93-5
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 3055289-53-4 C13H17N5O6
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
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
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
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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