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Structure Chemical Name CAS MF
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
Amoxicillin Impurity ABCDEFGHIJKLM Amoxicillin Impurity ABCDEFGHIJKLM
β-D-Glucopyranoside, [[(3R,3aS,6S,6aR)-tetrahydro-3a-hydroxy-1H,3H-furo[3,4-c]furan-3,6-diyl]bis(2-methoxy-4,1-phenylene)]bis β-D-Glucopyranoside, [[(3R,3aS,6S,6aR)-tetrahydro-3a-hydroxy-1H,3H-furo[3,4-c]furan-3,6-diyl]bis(2-methoxy-4,1-phenylene)]bis 112747-99-6 C32H42O17
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-(4-FLUORO-PHENYL)-1-ISOPROPYL-1H-INDOLE-2-CARBALDEHYDE 3-(4-FLUORO-PHENYL)-1-ISOPROPYL-1H-INDOLE-2-CARBALDEHYDE 101125-34-2 C18H16FNO
3,4-DIMETHOXY-2-HYDROXYBENZALDEHYDE 3,4-DIMETHOXY-2-HYDROXYBENZALDEHYDE 19283-70-6 C9H10O4
4-PYRIDIN-4-YL-BUTYRIC ACID 4-PYRIDIN-4-YL-BUTYRIC ACID 102878-73-9 C9H11NO2
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
Azacitidine Impurity EJ Azacitidine Impurity EJ
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
INDEX NAME NOT YET ASSIGNED INDEX NAME NOT YET ASSIGNED 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
INDEX NAME NOT YET ASSIGNED INDEX NAME NOT YET ASSIGNED 2452301-42-5 C23H27ClO7
Avatrombopag Impurity 35 Avatrombopag Impurity 35
2-AMINO-2'-FLUOROBENZOPHENONE 2-AMINO-2'-FLUOROBENZOPHENONE 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
5-METHOXY-2-(METHYLTHIO)BENZIMIDAZOLE 5-METHOXY-2-(METHYLTHIO)BENZIMIDAZOLE 91168-31-9 C9H10N2OS
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
ethyl (R)-thiazolidine-4-carboxylate ethyl (R)-thiazolidine-4-carboxylate 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-(2alpha,5alpha,6alpha)]-6-bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid [2S-(2alpha,5alpha,6alpha)]-6-bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 24138-28-1 C8H10BrNO3S
5-nitro-2-furaldehyde (5-nitrofurfurylene)hydrazone 5-nitro-2-furaldehyde (5-nitrofurfurylene)hydrazone 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)-thiazolidine-4-carboxylate methyl (R)-thiazolidine-4-carboxylate 42258-90-2 C5H9NO2S
Brivaracetam Impurity 55 Brivaracetam Impurity 55
alpha-(4-chlorophenyl)-alpha-[2-(dimethylamino)ethyl]pyridine-2-acetonitrile alpha-(4-chlorophenyl)-alpha-[2-(dimethylamino)ethyl]pyridine-2-acetonitrile 65676-21-3 C17H18ClN3
Baloxavir Impurity ABCDEFGHJKL Baloxavir Impurity ABCDEFGHJKL
INDEX NAME NOT YET ASSIGNED INDEX NAME NOT YET ASSIGNED 2514724-36-6 C22H19F2N3
scopoline scopoline 487-27-4 C8H13NO2
N-(1-benzylpiperidin-4-yl)-N-phenylpropionamide N-(1-benzylpiperidin-4-yl)-N-phenylpropionamide 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-carboxylic acid [1,1'-bicyclohexyl]-1-carboxylic acid 60263-54-9 C13H22O2
3-Pyridinecarboxamide, 5-chloro-N-[4-(4-chloro-2-thienyl)-5-(4-cyclohexyl-1-piperazinyl)-2-thiazolyl]-6-(dimethylamino)- 3-Pyridinecarboxamide, 5-chloro-N-[4-(4-chloro-2-thienyl)-5-(4-cyclohexyl-1-piperazinyl)-2-thiazolyl]-6-(dimethylamino)- 2626934-45-8 C25H30Cl2N6OS2
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
Avatrombopag Impurity ABCDEFGHJKL Avatrombopag Impurity ABCDEFGHJKL
1-(2-chloroethyl)-3-(dicyclopropylmethyl)urea 1-(2-chloroethyl)-3-(dicyclopropylmethyl)urea 54187-03-0 C10H17ClN2O
1,3-Dioxane-4-acetic acid, 6-[2-[3-[[[2-[(4R,6R)-6-[2-(1,1-dimethylethoxy)-2-oxoethyl]-2,2-dimethyl-1,3-dioxan-4-yl]ethyl]amino]carbonyl]-5-(4-fluorophenyl)-2-(1-methylethyl)-4-phenyl-1H-pyrrol-1-yl]ethyl]-2,2-dimethyl-, 1,1-dimethylethyl ester, (4R,6R)- 1,3-Dioxane-4-acetic acid, 6-[2-[3-[[[2-[(4R,6R)-6-[2-(1,1-dimethylethoxy)-2-oxoethyl]-2,2-dimethyl-1,3-dioxan-4-yl]ethyl]amino]carbonyl]-5-(4-fluorophenyl)-2-(1-methylethyl)-4-phenyl-1H-pyrrol-1-yl]ethyl]-2,2-dimethyl-, 1,1-dimethylethyl ester, (4R,6R)- 1229658-18-7 C48H67FN2O9
1H-Pyrrole-1-heptanoic acid, 2-(4-fluorophenyl)-β,δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-, 1,1-dimethylethyl ester, (βS,δR)- 1H-Pyrrole-1-heptanoic acid, 2-(4-fluorophenyl)-β,δ-dihydroxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-, 1,1-dimethylethyl ester, (βS,δR)- 2588261-38-3 C37H43FN2O5
3-hydroxy-2,4-dimethoxybenzaldehyde 3-hydroxy-2,4-dimethoxybenzaldehyde 32246-34-7 C9H10O4
butyl 3-aminosulphonyl-5-butylamino-4-phenoxybenzoate butyl 3-aminosulphonyl-5-butylamino-4-phenoxybenzoate 32643-00-8 C21H28N2O5S
11beta,16alpha,17,21-tetrahydroxypregn-4-ene-3,20-dione 11beta,16alpha,17,21-tetrahydroxypregn-4-ene-3,20-dione 1171-81-9 C21H30O6
trans-2-amino-N-(4-hydroxycyclohexyl)benzamide trans-2-amino-N-(4-hydroxycyclohexyl)benzamide 15942-11-7 C13H18N2O2
4-O-(Carboxymethyl)rifamycin 4-O-(Carboxymethyl)rifamycin 13929-35-6 C39H49NO14
ethyl 3,5-bis(benzyloxy)benzoate ethyl 3,5-bis(benzyloxy)benzoate 50841-46-8 C23H22O4
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
Apixaban Impurity 78 Apixaban Impurity 78
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
NA NA
Peramivir Intermediate impurity 1 Peramivir Intermediate impurity 1
NA NA
Peramivir Intermediate Impurity 43 Peramivir Intermediate Impurity 43
Peramivir Deacetylated Impurity Peramivir Deacetylated Impurity
NA NA
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
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