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
4-(4-amino-3-chlorophenoxy)-7-methoxyquinoline-6-carboxylic acid 4-(4-amino-3-chlorophenoxy)-7-methoxyquinoline-6-carboxylic acid C17H13ClN2O4
Ornidazole Impurity 26 Ornidazole Impurity 26
Pitavastatin Impurity 73 Pitavastatin Impurity 73
Furosemide Impurity 24 Furosemide Impurity 24
Brivaracetam Impurity 34 Brivaracetam Impurity 34
1-((2R,3R)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(hydroxymethyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium chloride 1-((2R,3R)-3-(4-(4-cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(((3-(hydroxymethyl)pyridin-2-yl)(methyl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium chloride
1H-1,2,4-Triazole-1-propanol, α-(2,4-difluorophenyl)-α-(1H-1,2,4-triazol-1-ylmethyl)- 1H-1,2,4-Triazole-1-propanol, α-(2,4-difluorophenyl)-α-(1H-1,2,4-triazol-1-ylmethyl)- 1222655-38-0 C14H14F2N6O
3-Pyrrolidinepropanoic acid, α-[[(1,1-dimethylethoxy)carbonyl]amino]-2-oxo-, (αS,3S)- 3-Pyrrolidinepropanoic acid, α-[[(1,1-dimethylethoxy)carbonyl]amino]-2-oxo-, (αS,3S)- 741267-75-4 C12H20N2O5
Topiroxostat Impurity 44 Topiroxostat Impurity 44 1824131-48-7 C7H6N4O
Fexofenadine Impurity 12 Fexofenadine Impurity 12 1010812-98-2 C32H37NO4
2,2'-(oxybis((2-chloro-5-iodophenyl)methylene))diphenol 2,2'-(oxybis((2-chloro-5-iodophenyl)methylene))diphenol C26H18Cl2I2O3
Gliclazide Impurity 6 Gliclazide Impurity 6 1207714-41-7 C8H10N2O3S
Phenol, 4,4'-(4-pyridinylmethylene)bis- Phenol, 4,4'-(4-pyridinylmethylene)bis- 109810-81-3 C18H15NO2
Ropivacaine Impurity 50 Ropivacaine Impurity 50
Glycine, N-[(4,7-dihydroxy-1-methyl-3-isoquinolinyl)carbonyl]- Glycine, N-[(4,7-dihydroxy-1-methyl-3-isoquinolinyl)carbonyl]- 2173338-12-8 C13H12N2O5
5-Thiazolecarboxylic acid, 2-[3,5-diformyl-4-(2-methylpropoxy)phenyl]-4-methyl-, ethyl ester 5-Thiazolecarboxylic acid, 2-[3,5-diformyl-4-(2-methylpropoxy)phenyl]-4-methyl-, ethyl ester 2375033-26-2 C19H21NO5S
Furosemide Impurity 6 Furosemide Impurity 6 74793-12-7 C12H10ClNO3
Lumateperone Impurity 3 Lumateperone Impurity 3 313544-76-2 C17H21N3O3
Butanoic acid, L-2-aminobutanoyl-L-2-amino-, methyl ester (9CI) Butanoic acid, L-2-aminobutanoyl-L-2-amino-, methyl ester (9CI) 772292-30-5 C9H18N2O3
Hexanoic acid, 3-(hydroxymethyl)-, (3R)- Hexanoic acid, 3-(hydroxymethyl)-, (3R)- 2096999-79-8 C7H14O3
2-(((Z)-(1-(2-aminothiazol-4-yl)-2-(((2S,3S)-1-(ethoxysulfonyl)-2-methyl-4-oxoazetidin-3-yl)amino)-2-oxoethylidene)amino)oxy)-2-methylpropanoic acid 2-(((Z)-(1-(2-aminothiazol-4-yl)-2-(((2S,3S)-1-(ethoxysulfonyl)-2-methyl-4-oxoazetidin-3-yl)amino)-2-oxoethylidene)amino)oxy)-2-methylpropanoic acid
3-Thiophenecarboxylic acid, 4-formyl-2,5-dihydro-2-(4-hydroxybutylidene)-5-methyl-, (2Z)- 3-Thiophenecarboxylic acid, 4-formyl-2,5-dihydro-2-(4-hydroxybutylidene)-5-methyl-, (2Z)- 1025974-23-5 C11H14O4S
1H-Pyrrole-3-methanamine, 1-[(1,4-dihydro-3-pyridinyl)sulfonyl]-5-(2-fluorophenyl)-N-methyl- 1H-Pyrrole-3-methanamine, 1-[(1,4-dihydro-3-pyridinyl)sulfonyl]-5-(2-fluorophenyl)-N-methyl- 2416241-98-8 C17H18FN3O2S
impurity 44 impurity 44
3-((2-acetamido-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy)propane- 1,2-diyl diacetate 3-((2-acetamido-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy)propane- 1,2-diyl diacetate 96429-68-4
L-erythro-Pentonic acid, 2-deoxy-2-fluoro-2-methyl-, γ-lactone, 3,5-dibenzoate, (2S)- L-erythro-Pentonic acid, 2-deoxy-2-fluoro-2-methyl-, γ-lactone, 3,5-dibenzoate, (2S)- 1946820-91-2 C20H17FO6
5,5'-Bi-1H-benzimidazole, 6,6'-bis(difluoromethoxy)-2,2'-bis[[(3,4-dimethoxy-2-pyridinyl)methyl]thio]- 5,5'-Bi-1H-benzimidazole, 6,6'-bis(difluoromethoxy)-2,2'-bis[[(3,4-dimethoxy-2-pyridinyl)methyl]thio]- 2251784-93-5 C32H28F4N6O6S2
1,4,7,10-Tetraazacyclododecane-1,7-diacetic acid, 4,10-bis[2,3-dihydroxy-1-(hydroxymethyl)propyl]- 1,4,7,10-Tetraazacyclododecane-1,7-diacetic acid, 4,10-bis[2,3-dihydroxy-1-(hydroxymethyl)propyl]- 2514736-58-2 C20H40N4O10
Valsartan Methyl Ester N2-Trityl Analog Valsartan Methyl Ester N2-Trityl Analog 883223-10-7 C44H45N5O3
Ampicillin Impurity G Ampicillin Impurity G
N-(5-((diphenylphosphoryl)methyl)-4-(3-fluorophenyl)-6-isopropylpyrimidin-2-yl)-N-methylmethanesulfonamide N-(5-((diphenylphosphoryl)methyl)-4-(3-fluorophenyl)-6-isopropylpyrimidin-2-yl)-N-methylmethanesulfonamide
Budesonide Impurity 28 Budesonide Impurity 28
Ethanol, 2-[2-(2-methyl-4-nitro-1H-imidazol-1-yl)ethoxy]- Ethanol, 2-[2-(2-methyl-4-nitro-1H-imidazol-1-yl)ethoxy]- 19765-12-9 C8H13N3O4
Empagliflozin ortho isomer Empagliflozin ortho isomer 2452301-30-1 C23H27ClO7
(5R,6S)-6-((R)-1-hydroxyethyl)-7-oxo-3-((S)-tetrahydrofuran-2-yl)-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4,4-dioxide (5R,6S)-6-((R)-1-hydroxyethyl)-7-oxo-3-((S)-tetrahydrofuran-2-yl)-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4,4-dioxide
(3S,5R,6E) Rosuvastatin Calcium Salt (2:1) (3S,5R,6E) Rosuvastatin Calcium Salt (2:1) 2414245-11-5 C22H30CaFN3O6S
Englejing impurity 17 Englejing impurity 17 2452301-42-5 C23H27ClO7
2-Amino-2'-fluorbenzophenon 2-Amino-2'-fluorbenzophenon 1581-13-1 C13H10FNO
(R)-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2,2-dimethyl-1,2,3,4-tetrahydroisoquinolin-2-ium (R)-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2,2-dimethyl-1,2,3,4-tetrahydroisoquinolin-2-ium 2480467-84-1 C28H35NO7S
4-METHYL-6-PYRIDIN-3-YLPYRIMIDIN-2-AMINE 4-METHYL-6-PYRIDIN-3-YLPYRIMIDIN-2-AMINE 90916-52-2 C10H10N4
1-Benzyl-4-(5,6-dimethoxy-1-oxoindan-2-ylindenemethyl)piperidine 1-Benzyl-4-(5,6-dimethoxy-1-oxoindan-2-ylindenemethyl)piperidine 120014-07-5 C24H27NO3
Crisaborole Impurity 16 Crisaborole Impurity 16 2268785-42-6 C14H10BNO3
guanidine guanidine 113-00-8 CH5N3
tert-Butyl (E)-3,5-Dihydroxy-7-[3'-(4 tert-Butyl (E)-3,5-Dihydroxy-7-[3'-(4"-fluorophenyl)-1'-methylethylindol-2'-yl)hept-6-enoate 194934-96-8 C28H34FNO4
Brivaracetam Impurity 55 Brivaracetam Impurity 55
α-(4-Chlorphenyl)-α-[2-(dimethylamino)ethyl]pyridin-2-acetonitril α-(4-Chlorphenyl)-α-[2-(dimethylamino)ethyl]pyridin-2-acetonitril 65676-21-3 C17H18ClN3
Baloxavir Impurity ABCDEFGHJKL Baloxavir Impurity ABCDEFGHJKL
1H-Pyrrole-3-methanamine, 5-(2-fluorophenyl)-N-[[5-(2-fluorophenyl)-1H-pyrrol-3-yl]methyl]- 1H-Pyrrole-3-methanamine, 5-(2-fluorophenyl)-N-[[5-(2-fluorophenyl)-1H-pyrrol-3-yl]methyl]- 2514724-36-6 C22H19F2N3
Scopolin Scopolin 487-27-4 C8H13NO2
N-(1-Benzylpiperidin-4-yl)-N-phenylpropionamid N-(1-Benzylpiperidin-4-yl)-N-phenylpropionamid 1474-02-8 C21H26N2O
Oseltamivir Impurity 106 Oseltamivir Impurity 106
Oseltamivir  Impurity 85 Oseltamivir Impurity 85
Oseltamivir  Impurity 83 Oseltamivir Impurity 83
Oseltamivir  Impurity 75 Oseltamivir Impurity 75
[1,1'-Bicyclohexyl]-1-carbonsure [1,1'-Bicyclohexyl]-1-carbonsure 60263-54-9 C13H22O2
Dapagliflozin Impurity 49 Dapagliflozin Impurity 49
11-[3-(Dimethylamino)propyl]-6,11-dihydrodibenz[b,e]oxepin-11-ol 11-[3-(Dimethylamino)propyl]-6,11-dihydrodibenz[b,e]oxepin-11-ol 4504-88-5 C19H23NO2
1-(2-Chlorethyl)-3-(dicyclopropylmethyl)harnstoff 1-(2-Chlorethyl)-3-(dicyclopropylmethyl)harnstoff 54187-03-0 C10H17ClN2O
3-Hydroxy-2,4-dimethoxybenzaldehyd 3-Hydroxy-2,4-dimethoxybenzaldehyd 32246-34-7 C9H10O4
Butyl-3-aminosulfonyl-5-butylamino-4-phenoxybenzoat Butyl-3-aminosulfonyl-5-butylamino-4-phenoxybenzoat 32643-00-8 C21H28N2O5S
11β,16α,17,21-Tetrahydroxypregn-4-en-3,20-dion 11β,16α,17,21-Tetrahydroxypregn-4-en-3,20-dion 1171-81-9 C21H30O6
trans-2-Amino-N-(4-hydroxycyclohexyl)benzamid trans-2-Amino-N-(4-hydroxycyclohexyl)benzamid 15942-11-7 C13H18N2O2
Rifamycin, 4-O-(Carboxymethyl)- Rifamycin, 4-O-(Carboxymethyl)- 13929-35-6 C39H49NO14
Ethyl-3,5-bis(benzyloxy)benzoat Ethyl-3,5-bis(benzyloxy)benzoat 50841-46-8 C23H22O4
Ethyl-(R)-thiazolidin-4-carboxylat Ethyl-(R)-thiazolidin-4-carboxylat 60664-15-5 C6H11NO2S
3-((3R,4R)-3-(7H-[4,7'-bipyrrolo[2,3-d]pyrimidin]-4'-yl(methyl) amino)-4-methylpiperidin-1-yl)-3-oxopropanenitrile		3-((3R,4R)-3-(7H-[4,7'-bipyrrolo[2,3-d]pyrimidin]-4'-yl(methyl) amino)-4-methylpiperidin-1-yl)-3-oxopropanenitrile 2504210-48-2 C22H23N9O
Faropenem Impurity D Faropenem Impurity D
[2S-(2α,5α,6α)]-6-Brom-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-2-carbonsure [2S-(2α,5α,6α)]-6-Brom-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptan-2-carbonsure 24138-28-1 C8H10BrNO3S
5-Nitro-2-furaldehyd-(5-nitrofurfurylen)hydrazon 5-Nitro-2-furaldehyd-(5-nitrofurfurylen)hydrazon 736-53-8 C10H6N4O6
4-(benzo[b]thiophen-4-yl)-1,1-bis(4-((2-oxo-1,2-dihydroquinolin-7-yl)oxy)butyl)piperazin-1-ium chloride 4-(benzo[b]thiophen-4-yl)-1,1-bis(4-((2-oxo-1,2-dihydroquinolin-7-yl)oxy)butyl)piperazin-1-ium chloride 2454317-16-7 C38H41N4O4S
Methyl-(R)-thiazolidin-4-carboxylat Methyl-(R)-thiazolidin-4-carboxylat 42258-90-2 C5H9NO2S
Revefenacin Impurity 7 Revefenacin Impurity 7 1158777-54-8 C14H19ClN2O3
(R)-8-(3-aminopiperidin-1-yl)-3-methyl-1,7-bis((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione (R)-8-(3-aminopiperidin-1-yl)-3-methyl-1,7-bis((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione
Oxytocin Impurity 8 Trifluoroacetate Oxytocin Impurity 8 Trifluoroacetate
Peramivir Dehydrated Impurity Peramivir Dehydrated Impurity
Formoterol Impurity 32 Formoterol Impurity 32
(1S,2S,3R,4R)-2-((R)-1-acetamido-2-ethylbutyl)-4-guanidino-3-hydroxycyclopentane-1-carboxylic acid (1S,2S,3R,4R)-2-((R)-1-acetamido-2-ethylbutyl)-4-guanidino-3-hydroxycyclopentane-1-carboxylic acid
Desloratadine EP impurity A hcl Desloratadine EP impurity A hcl 2250242-44-3 C19H21Cl2FN2
(R)-6-(2-((1S,2S)-2,6-dimethyl-1,2,3,4-tetrahydronaphthalen-1-yl) ethyl)-5,6-dihydro-2H-pyran-2-one and (R)-6-(2-((R)-2,6-dimethyl- 5,6,7,8-tetrahydronaphthalen-1-yl)ethyl)-5,6-dihydro-2H-pyran-2-one (R)-6-(2-((1S,2S)-2,6-dimethyl-1,2,3,4-tetrahydronaphthalen-1-yl) ethyl)-5,6-dihydro-2H-pyran-2-one and (R)-6-(2-((R)-2,6-dimethyl- 5,6,7,8-tetrahydronaphthalen-1-yl)ethyl)-5,6-dihydro-2H-pyran-2-one
(3S,4S)-Tofacitinib (3S,4S)-Tofacitinib 1092578-47-6 C16H20N6O
Rosuvastatin Impurity 145 Rosuvastatin Impurity 145
Peramivir Intermediate impurity 1 Peramivir Intermediate impurity 1
Rosuvastatin EP Impurity G Rosuvastatin EP Impurity G
Peramivir Intermediate Impurity 43 Peramivir Intermediate Impurity 43
Peramivir Deacetylated Impurity Peramivir Deacetylated Impurity
Linagliptin Impurity 49 Linagliptin Impurity 49
Loxoprofen Sodium Impurity 35 Loxoprofen Sodium Impurity 35
Dashatinib impurity 46 Dashatinib impurity 46
(R,S)-N-Acetyl-3,4-dimethoxy phenylalanine (R,S)-N-Acetyl-3,4-dimethoxy phenylalanine 27313-65-1 C13H17NO5
Oxytocin oxide impurity reference substance Oxytocin oxide impurity reference substance
Troxipide Impurity 7 Troxipide Impurity 7
Bendamustine Impurity 37A Bendamustine Impurity 37A
Brivaracetam Impurity 50 Brivaracetam Impurity 50
6-Hydroxymoxifloxacin Impurities 6-Hydroxymoxifloxacin Impurities
(S)-4-(((R)-1-carboxy-2-((3-hydroxypropyl)thio)ethyl)amino)-3-hydroxy-4-oxobutanoic acid (S)-4-(((R)-1-carboxy-2-((3-hydroxypropyl)thio)ethyl)amino)-3-hydroxy-4-oxobutanoic acid
(S)-dimethyl 2-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzamido)pentanedioate (S)-dimethyl 2-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzamido)pentanedioate 67676-60-2 C22H27ClN8O5
Furoxine GSK Open Ring Impurity Furoxine GSK Open Ring Impurity
Isavuconazole Impurity 48 Isavuconazole Impurity 48
5,5'-((1R,1'R)-((5,6-diethyl-2,3-dihydro-1H-inden-2-yl)azanediyl)bis(1-hydroxyethane-2,1-diyl))bis(8-hydroxyquinolin-2(1H)-one) 5,5'-((1R,1'R)-((5,6-diethyl-2,3-dihydro-1H-inden-2-yl)azanediyl)bis(1-hydroxyethane-2,1-diyl))bis(8-hydroxyquinolin-2(1H)-one)
2-(4-(2-(4-(1-(2-methoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoic acid 2-(4-(2-(4-(1-(2-methoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoic acid C27H35N3O3
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