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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
Pramipexole Impurity Reference Pramipexole Impurity Reference
2,2'-(4,10-bis((trans)-1,3,4-trihydroxybutan-2-yl)-1,4,7,10-tetraazacyclododecane-1,7-diyl)diacetic acid Gd3+ 2,2'-(4,10-bis((trans)-1,3,4-trihydroxybutan-2-yl)-1,4,7,10-tetraazacyclododecane-1,7-diyl)diacetic acid Gd3+
3-[4-(acetyloxymethyl)phenyl]-2-propenoic acid methyl ester 3-[4-(acetyloxymethyl)phenyl]-2-propenoic acid methyl ester 100688-45-7 C13H14O4
Acetaminophen Impurity 14 Acetaminophen Impurity 14 1991204-56-8 C16H18N2O2
Ketoconazole Impurity 7 Ketoconazole Impurity 7 172032-21-2 C11H12Cl2O3
Rosuvastatin Impurity 59 Rosuvastatin Impurity 59
Losartan Impurity 12 Losartan Impurity 12 727718-93-6 C22H22ClN9
benzyl (2S)-2-amino-3-(4-methanesulfonylphenyl)propanoate hydrochloride benzyl (2S)-2-amino-3-(4-methanesulfonylphenyl)propanoate hydrochloride 1865726-28-8 C17H19NO4S
Glycopyrrolate Impurity 12 Glycopyrrolate Impurity 12 857353-41-4 C13H14O3
(4S,4aR,5R,12aS)-4-(dimethylamino)-3,5,10,11,12a-pentahydroxy-6-methyl-1,12-dioxo-1,4,4a,5,12,12a-hexahydrotetracene-2-carboxamide (4S,4aR,5R,12aS)-4-(dimethylamino)-3,5,10,11,12a-pentahydroxy-6-methyl-1,12-dioxo-1,4,4a,5,12,12a-hexahydrotetracene-2-carboxamide 4660-26-8 C22H22N2O8
Regorafenib Impurity 38 Regorafenib Impurity 38
Cefazolin Impurity 28 Cefazolin Impurity 28
Vonoprazan Impurity 57 Vonoprazan Impurity 57
Tafluprost Impurity 9 Tafluprost Impurity 9 2099033-66-4 C27H41NO8
2H-3-Benzazepin-2-one, 3-[3-[[[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl]methylamino]propyl]-1,3,4,5-tetrahydro-5-hydroxy-7,8-dimethoxy- 2H-3-Benzazepin-2-one, 3-[3-[[[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl]methylamino]propyl]-1,3,4,5-tetrahydro-5-hydroxy-7,8-dimethoxy- 2253977-80-7 C27H36N2O6
Benzeneacetic acid, 3-[1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]butyl]-α,α-dimethyl-, methyl ester Benzeneacetic acid, 3-[1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]butyl]-α,α-dimethyl-, methyl ester 1187954-56-8 C33H41NO4
N-[2-(methylthio)ethyl]-2-[(3,3,3-trifluoropropyl)thio]-Adenosine 5''-(hydrogen P-1H-imidazol-1-ylphosphonate) N-[2-(methylthio)ethyl]-2-[(3,3,3-trifluoropropyl)thio]-Adenosine 5''-(hydrogen P-1H-imidazol-1-ylphosphonate) 1054332-15-8 C19H25F3N7O6PS2
N-[5-(4-Bromophenyl)-6-[2-(2-pyrimidinyloxy)ethoxy]-4-pyrimidinyl]-N''-propyl-sulfamide N-[5-(4-Bromophenyl)-6-[2-(2-pyrimidinyloxy)ethoxy]-4-pyrimidinyl]-N''-propyl-sulfamide 2211059-00-4 C19H21BrN6O4S
8-cyclopentyl-6-(1-hydroxyethyl)-5-methyl-2-((5-(piperazin-1-yl)pyridin-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one 8-cyclopentyl-6-(1-hydroxyethyl)-5-methyl-2-((5-(piperazin-1-yl)pyridin-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one 1376615-91-6 C24H31N7O2
Plerixafor Impurity A Plerixafor Impurity A
Ceftazidime Impurity G Ceftazidime Impurity G 138829-73-9 C11H14N4O5S
Vonoprazan Impurity 6 Vonoprazan Impurity 6
Umeclidinium Bromide Impurity 4 Umeclidinium Bromide Impurity 4 869112-31-2 C22H28BrNO2
Deschloro Etoricoxib Deschloro Etoricoxib
Cefazolin impurity B Cefazolin impurity B 1798004-55-3 C16H20N4O4S3.Na
5-chloro-N-(4-((S)-5-((5-chlorothiophene-2-carboxamido)methyl)-2-oxooxazolidin-3-yl)phenyl)-N-(2-(2-oxo-2-((((S)-2-oxo-3-(4-(3-oxomorpholino)phenyl)oxazolidin-5-yl)methyl)amino)ethoxy)ethyl)thiophene-2-carboxamide 5-chloro-N-(4-((S)-5-((5-chlorothiophene-2-carboxamido)methyl)-2-oxooxazolidin-3-yl)phenyl)-N-(2-(2-oxo-2-((((S)-2-oxo-3-(4-(3-oxomorpholino)phenyl)oxazolidin-5-yl)methyl)amino)ethoxy)ethyl)thiophene-2-carboxamide 1632463-24-1 C38H36Cl2N6O10S2
Rivaroxaban Impurity 16 Rivaroxaban Impurity 16
Topiroxostat Impurity 3 Topiroxostat Impurity 3
Isomer 1 of Tazobactam Impurity 3 Isomer 1 of Tazobactam Impurity 3
Ceftiofur USP Impurity I Ceftiofur USP Impurity I
Cephalexin Degradation Impurity A Cephalexin Degradation Impurity A
Pregabalin-8687(mixture of 4 isomers) Pregabalin-8687(mixture of 4 isomers)
7-(2-chloropropanoyl)-5H-chromeno[2,3-b]pyridin-5-one 7-(2-chloropropanoyl)-5H-chromeno[2,3-b]pyridin-5-one
1-(5H-chromeno[2,3-b]pyridin-7-yl)-2-methoxypropan-1-one 1-(5H-chromeno[2,3-b]pyridin-7-yl)-2-methoxypropan-1-one
(E)-4-chloro-6-(3-(2,4-difluorophenyl)-4-(1H-1,2,4-triazol-1-yl)but-3-en-2-yl)-5-fluoropyrimidine (E)-4-chloro-6-(3-(2,4-difluorophenyl)-4-(1H-1,2,4-triazol-1-yl)but-3-en-2-yl)-5-fluoropyrimidine
Dolutegravir Impurity C Dolutegravir Impurity C 1802141-49-6 C22H23F2N3O5
Dapoxetine Impurity 68 Dapoxetine Impurity 68 119357-48-1 C19H18O
Tobramycin Impurity Tobramycin Impurity 74501-86-3 C18H35N5O8
Peramivir Impurity 24 Peramivir Impurity 24
2-CHLORO-6-AMINO-9-(2',3',5'-TRI-O-ACETYL--D-RIBOFURANOSYL)PURINE 2-CHLORO-6-AMINO-9-(2',3',5'-TRI-O-ACETYL--D-RIBOFURANOSYL)PURINE 79999-39-6 C16H18ClN5O7
Sugammadex sodium Impurity 46 Sugammadex sodium Impurity 46
Tenofovir Impurity 103 Tenofovir Impurity 103
Cabozantinib impurity 44 Cabozantinib impurity 44
Cabozantinib impurity 40 Cabozantinib impurity 40
Cabozantinib impurity 74 Cabozantinib impurity 74
Doxofylline Impurity 25 Doxofylline Impurity 25
Dapoxetine impurity 62 Dapoxetine impurity 62
Dapoxetine impurity 56 Dapoxetine impurity 56
D-(-)-N-(2,4-diamino-6-pteridinyl(dimethylamino)benzoyl)glutaminsure D-(-)-N-(2,4-diamino-6-pteridinyl(dimethylamino)benzoyl)glutaminsure 51865-79-3 C20H22N8O5
Bimatoprost Impurity 11 Bimatoprost Impurity 11
Bimatoprost Impurity 9 Bimatoprost Impurity 9
Dolutegravir Impurity 18 Dolutegravir Impurity 18
PeraMpanel PeraMpanel 380918-53-6 C23H15N3O
Lenvatinib Impurity 33 Lenvatinib Impurity 33
Diroxide Impurity 4 Diroxide Impurity 4
(R,E)-4-((3-(3-(diisopropylamino)-1-phenylpropyl)-4-hydroxybenzyl)oxy)-4-oxobut-2-enoic acid (R,E)-4-((3-(3-(diisopropylamino)-1-phenylpropyl)-4-hydroxybenzyl)oxy)-4-oxobut-2-enoic acid C26H33NO5
Flomoxef Impurity 2 Flomoxef Impurity 2 1208982-59-5 C32H30N6O7S
Lincomycin  impurity B Lincomycin impurity B
Valsartan Impurity 1 Valsartan Impurity 1 914465-68-2 C19H21N5O
Ethanone, 1-[3,5-bis(phenylmethoxy)phenyl]-2-[(1,1-dimethylethyl)(phenylmethyl)amino]-, sulfate (1:1) Ethanone, 1-[3,5-bis(phenylmethoxy)phenyl]-2-[(1,1-dimethylethyl)(phenylmethyl)amino]-, sulfate (1:1) 52144-93-1 C33H37NO7S
2-(((3aS,4R,6S,6aR)-6-((5-amino-6-chloro-2-(propylthio)pyrimidin-4-yl)amino)-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-yl)oxy)ethan-1-ol 2-(((3aS,4R,6S,6aR)-6-((5-amino-6-chloro-2-(propylthio)pyrimidin-4-yl)amino)-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-yl)oxy)ethan-1-ol C17H27ClN4O4S
Clindamycin  impurity Clindamycin impurity 198080-64-7 C18H32N2O5S
Digoxin impurity Digoxin impurity
Lamivudine impurity Lamivudine impurity
Levothyroxine Sodium  impurity Levothyroxine Sodium impurity 27566-09-2 C14H21NO4
Dexchlorpheniramine impurity Dexchlorpheniramine impurity 73775-50-5 C12H15ClN2
6-benzyloxy-8-((R)-2-chloro-1-hydroxy-ethyl)-4H-benzo[1,4]-oxazin-3-one 6-benzyloxy-8-((R)-2-chloro-1-hydroxy-ethyl)-4H-benzo[1,4]-oxazin-3-one 869478-11-5 C17H16ClNO4
ethyl (41R,13aS)-13a-ethyl-2,3,41,5,6,13a-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate ethyl (41R,13aS)-13a-ethyl-2,3,41,5,6,13a-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate 77549-94-1 C22H26N2O2
Dolutegravir Impurity 2 Dolutegravir Impurity 2
Lesinurad Impurity J Lesinurad Impurity J 1210330-64-5 C14H10BrN3O2S
Neratinib Impurity 4 Neratinib Impurity 4 1144516-18-6 C31H32ClN6O3+
Linagliptin Impurity C Linagliptin Impurity C 1791405-13-4 C15H20N6O2
1,1-Cyclopropanedicarboxamide,N-[4-[(6,7-dimethoxy-4-quinolinyl)oxy]phenyl]-N'-phenyl- 1,1-Cyclopropanedicarboxamide,N-[4-[(6,7-dimethoxy-4-quinolinyl)oxy]phenyl]-N'-phenyl- 849221-94-9 C28H25N3O5
methyl (41S,12S,13aS)-13a-ethyl-12-hydroxy-8-methoxy-2,3,41,5,6,12,13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate methyl (41S,12S,13aS)-13a-ethyl-12-hydroxy-8-methoxy-2,3,41,5,6,12,13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate 57430-34-9 C22H28N2O4
(R)-1-[3-[4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]piperidin-1-yl]ethanone (R)-1-[3-[4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]piperidin-1-yl]ethanone 1288338-95-3 C24H24N6O2
Amlodipine Impurity 17 Amlodipine Impurity 17 C26H31ClN2O8S
Edoxaban Impurity 12 (1R,2R,4S) Edoxaban Impurity 12 (1R,2R,4S)
Rivaroxaban Impurity 26 Rivaroxaban Impurity 26 1838133-00-8 C23H21Cl2N3O5S2
Erlotinib Erlotinib 938185-06-9 C16H11N3O2
methyl (41R,12S,13aS)-13a-ethyl-12-hydroxy-2,3,41,5,6,12,13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate methyl (41R,12S,13aS)-13a-ethyl-12-hydroxy-2,3,41,5,6,12,13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate 18374-18-0 C21H26N2O3
Brexpiprazole sulfoxide impurity Brexpiprazole sulfoxide impurity 1191900-51-2 C25H27N3O3S
Cabozantinib Impurity H Cabozantinib Impurity H
Clopidogrel Impurity 11 Clopidogrel Impurity 11 C15H14ClNO2S
Medetomidine Impurity 3 Medetomidine Impurity 3 104245-83-2 C10H13Cl
Tofacitinib Impurity 35 Tofacitinib Impurity 35
ethyl 4-(5-methyl-3-phenylisoxazol-4-yl)benzenesulfonate ethyl 4-(5-methyl-3-phenylisoxazol-4-yl)benzenesulfonate 1884279-18-8 C18H17NO4S
N-methyl-1-(5-phenyl-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)methanamine fumarate N-methyl-1-(5-phenyl-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)methanamine fumarate 928325-82-0 C21H21N3O6S
Phenol, 2,4-dibromo-3-methyl- Phenol, 2,4-dibromo-3-methyl- 13321-75-0 C7H6Br2O
N-((4-FLUOROPHENYL)METHYL)ETHANAMIDE N-((4-FLUOROPHENYL)METHYL)ETHANAMIDE 86010-68-6 C9H10FNO
Benzenediazonium, 4-(ethoxycarbonyl)-, chloride Benzenediazonium, 4-(ethoxycarbonyl)-, chloride 2028-79-7 C9H9ClN2O2
2,4-Pteridinediamine,6-(methoxymethyl)- 2,4-Pteridinediamine,6-(methoxymethyl)- 40110-13-2 C8H10N6O
Fingolimod EP Impurity D Fingolimod EP Impurity D 780729-32-0 C21H37NO2
Pentanedioic acid, 2,4-diacetyl-3-(3-nitrophenyl)-, dimethyl ester Pentanedioic acid, 2,4-diacetyl-3-(3-nitrophenyl)-, dimethyl ester 89080-61-5 C17H19NO8
2-Thiazoleacetic acid,4-carboxy-2,5-dihydro-5-(4-hydroxybutylidene)-a-[(1R)-1-hydroxyethyl]-, disodium salt, (aS,2R,5Z)- (9CI) 2-Thiazoleacetic acid,4-carboxy-2,5-dihydro-5-(4-hydroxybutylidene)-a-[(1R)-1-hydroxyethyl]-, disodium salt, (aS,2R,5Z)- (9CI) 130609-10-8 C12H18NNaO6S
4,4'-Iminodiphenol hydrochloride 4,4'-Iminodiphenol hydrochloride 1965310-24-0 C12H12ClNO2
Cefradine Impurity D Cefradine Impurity D
Donepezil  Impurity Donepezil Impurity 896134-06-8 C17H15NO4
1-(2-chloro-5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)-N-methylmethanamine 1-(2-chloro-5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)-N-methylmethanamine 928325-68-2 C17H15ClFN3O2S
N-methyl-N-(4-nitrophenyl)-2-(piperazin-1-yl)acetamide N-methyl-N-(4-nitrophenyl)-2-(piperazin-1-yl)acetamide 2037385-84-3 C13H19ClN4O3
N-(3,5-dimethylphenyl)picolinamide N-(3,5-dimethylphenyl)picolinamide 439591-67-0 C14H14N2O
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