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Structure Chemical Name CAS MF
Febuxostat Impurity 70 Febuxostat Impurity 70 2418591-43-0 C16H16N2O3S
Febuxostat Impurity 92 Febuxostat Impurity 92
Fluconazole Impurity N Fluconazole Impurity N C13H12F2N6O
Ibrutinib Impurity 25 Ibrutinib Impurity 25 2052279-48-6 C28H28N6O4
(2R,3R)-3-amino-2-methyl-4-oxoazetidine-1-sulfonic acid (2R,3R)-3-amino-2-methyl-4-oxoazetidine-1-sulfonic acid
Osimertinib impurity01 Osimertinib impurity01
Hexanoic acid, 6-chloro-3,5-dihydroxy-, (3R,5S)- Hexanoic acid, 6-chloro-3,5-dihydroxy-, (3R,5S)- 958358-67-3 C6H11ClO4
Oseltamivir  Impurity 78 Oseltamivir Impurity 78
Oseltamivir  Impurity 67 Oseltamivir Impurity 67
Ixazomib Impurity ABCDEFGHJKL Ixazomib Impurity ABCDEFGHJKL
2-[[[4-(2,2-dimethyl-1-oxopropoxy)phenyl]sulfonyl]amino]-Benzoic acid 2-[[[4-(2,2-dimethyl-1-oxopropoxy)phenyl]sulfonyl]amino]-Benzoic acid 188114-98-9 C18H19NO6S
2-Pyrazinecarboxamide, N-[(1S)-2-[[(1Z)-3-methyl-1-buten-1-yl]amino]-2-oxo-1-(phenylmethyl)ethyl]- 2-Pyrazinecarboxamide, N-[(1S)-2-[[(1Z)-3-methyl-1-buten-1-yl]amino]-2-oxo-1-(phenylmethyl)ethyl]- 2276538-67-9 C19H22N4O2
INDEX NAME NOT YET ASSIGNED INDEX NAME NOT YET ASSIGNED 2365474-06-0 C24H27N8O9+
(S)-2-(pentylsulfonamido)-3-(4-(4-(piperidin-4-yl)butoxy)phenyl)propanoic acid (S)-2-(pentylsulfonamido)-3-(4-(4-(piperidin-4-yl)butoxy)phenyl)propanoic acid 1332692-49-5 C23H38N2O5S
O-Demethyl elagolix sodium O-Demethyl elagolix sodium 832720-51-1 C31H28F5N3O5
Pitavastatin Impurity 81 Pitavastatin Impurity 81
Carbazochrome Sodium Sulfonate Impurity IV (Carbazochrome Sodium Sulfonate Impurity 4) Carbazochrome Sodium Sulfonate Impurity IV (Carbazochrome Sodium Sulfonate Impurity 4)
Telmisartan EP Impurity B Complete Set Telmisartan EP Impurity B Complete Set
Cetrorelix Impurity 12 Cetrorelix Impurity 12
Cetrorelix Impurity 5 (6-D-Orn) Cetrorelix Impurity 5 (6-D-Orn)
Tenofovir impurity EE Tenofovir impurity EE
Peramivir Intermediate Impurity 35 Peramivir Intermediate Impurity 35
Peramivir Intermediate Impurity 40 Peramivir Intermediate Impurity 40
Canagliflozin impurities 16 drops Canagliflozin impurities 16 drops
Palonosetron impurity 30XH Palonosetron impurity 30XH
Pazopanib ImpurityABCDEFGHJKL Pazopanib ImpurityABCDEFGHJKL
1-(4-(2-Dimethylamino)-2-ethoxyphenyl butanone 1-(4-(2-Dimethylamino)-2-ethoxyphenyl butanone 68047-07-4 C20H25NO2
Vonoprazan-050-C4H4O4 Vonoprazan-050-C4H4O4 928325-69-3 C21H19ClFN3O6S
Crisaborole Impurity 45 Crisaborole Impurity 45 1785498-37-4 C7H6Br2O
Sugammadex Impurity 26(Org199129-1) Sugammadex Impurity 26(Org199129-1) 2412953-06-9
Gadobutrol Impurity A Gadobutrol Impurity A
Levocarnitine EP Impurity A(Z) Levocarnitine EP Impurity A(Z)
Penicillin impurity E Penicillin impurity E
2-bromo-6-(6'-oxo-1'-phenyl-1',6'-dihydro-[2,3'-bipyridin]-5'-yl)benzonitrile 2-bromo-6-(6'-oxo-1'-phenyl-1',6'-dihydro-[2,3'-bipyridin]-5'-yl)benzonitrile
tert-butyl 2-((4R,6S)-6-((E)-2-(4-(2-fluorophenyl)-6-isopropyl-2-(N-methylmethylsulfonamido)pyrimidin-5-yl)vinyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate tert-butyl 2-((4R,6S)-6-((E)-2-(4-(2-fluorophenyl)-6-isopropyl-2-(N-methylmethylsulfonamido)pyrimidin-5-yl)vinyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate
methyl (3aR,4S,6R,6aS)-4-((tert-butoxycarbonyl)amino)-3-(pentan-3- yl)-3a,5,6,6a-tetrahydro-4H-cyclopenta[d]isoxazole-6-carboxylate methyl (3aR,4S,6R,6aS)-4-((tert-butoxycarbonyl)amino)-3-(pentan-3- yl)-3a,5,6,6a-tetrahydro-4H-cyclopenta[d]isoxazole-6-carboxylate
2-(4-(2-(4-(1-(2-hydroxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoic acid 2-(4-(2-(4-(1-(2-hydroxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoic acid C26H33N3O3
2-(4-ethylpiperazin-1-yl)-4-(4-methoxyphenyl)-5,6,7,8,9,10-hexahydrocycloocta[b]pyridine 2-(4-ethylpiperazin-1-yl)-4-(4-methoxyphenyl)-5,6,7,8,9,10-hexahydrocycloocta[b]pyridine C24H33N3O
Rosuvastatin Impurity 163 Rosuvastatin Impurity 163
Rosuvastatin Impurity 150 Rosuvastatin Impurity 150
1-[2-(2,4-difluorophenyl)-2,3-epoxypropyl]-1h-1,2,4-triazole 1-[2-(2,4-difluorophenyl)-2,3-epoxypropyl]-1h-1,2,4-triazole 86386-76-7 C11H9F2N3O
1-(3-Cyanopyridyl-2)-2-Phenyl-4-Methylpyperazine 1-(3-Cyanopyridyl-2)-2-Phenyl-4-Methylpyperazine 61337-88-0 C17H18N4
Ertapenem Impurity E(USP) Ertapenem Impurity E(USP)
Pyrazinecarboxaldehyde, trimethyl- (9CI) Pyrazinecarboxaldehyde, trimethyl- (9CI) 186534-02-1 C8H10N2O
Acetamide, N-[4-[(2R)-3-cyano-2-methyl-1-oxopropyl]phenyl]- Acetamide, N-[4-[(2R)-3-cyano-2-methyl-1-oxopropyl]phenyl]- 2428573-45-7 C13H14N2O2
4-[6-(2-Chloroethyl)-3,6,7,8-tetrahydro-3-methylimidazo[4,5-h][1,4]benzothiazin-2-yl]butanoic acid 4-[6-(2-Chloroethyl)-3,6,7,8-tetrahydro-3-methylimidazo[4,5-h][1,4]benzothiazin-2-yl]butanoic acid 2469039-29-8 C16H21Cl2N3O2S
1-(2-Methoxyphenyl)-4-{3-[4-(2-methoxyphenyl)piperazin-1-yl] propyl}piperazine 1-(2-Methoxyphenyl)-4-{3-[4-(2-methoxyphenyl)piperazin-1-yl] propyl}piperazine
D-erythro-Pent-4-enose, 4,5-dideoxy-2,3-O-(1-methylethylidene)- (9CI) D-erythro-Pent-4-enose, 4,5-dideoxy-2,3-O-(1-methylethylidene)- (9CI) 155934-55-7 C8H12O3
Isavuconazole Impurity 41 Isavuconazole Impurity 41
Carbamic acid, N-benzoyl-N-(2-phenylethyl)-, (2R)-1-azabicyclo[2.2.2]oct-2-yl ester Carbamic acid, N-benzoyl-N-(2-phenylethyl)-, (2R)-1-azabicyclo[2.2.2]oct-2-yl ester 1798817-91-0 C23H26N2O3
4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1,1-bis((5-methylpyridin-3-yl)methyl)piperidin-1-ium 4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1,1-bis((5-methylpyridin-3-yl)methyl)piperidin-1-ium
Bisoprolol Impurity 34 Bisoprolol Impurity 34
Flomoxef Impurity I Flomoxef Impurity I
Ampicillin Impurity C2 Ampicillin Impurity C2
Tegoprazan Impurity 13 Tegoprazan Impurity 13
Nirmatrelvir Impurity 6 Nirmatrelvir Impurity 6
Bumetanide Impurity 25 Bumetanide Impurity 25
Rocuronium Bromide Impurity 16 、17、18 Rocuronium Bromide Impurity 16 、17、18
Roxadustat Impurity 15 Roxadustat Impurity 15
(1S,3S,7S,8S,8aR)-8-(2-((2R,4R)-4-hydroxy-6-oxotetrahydro-2H- pyran-2-yl)ethyl)-3,7-dimethyl-1,2,3,4,6,7,8,8a-octahydronaphthalen- 1-yl 2,2-dimethylbutanoate (1S,3S,7S,8S,8aR)-8-(2-((2R,4R)-4-hydroxy-6-oxotetrahydro-2H- pyran-2-yl)ethyl)-3,7-dimethyl-1,2,3,4,6,7,8,8a-octahydronaphthalen- 1-yl 2,2-dimethylbutanoate 132487-01-5 C25H40O5
3-(hydroxy(2-methyl-1H-imidazol-1-yl)methyl)-9-(hydroxymethyl)-1,2,3,9-tetrahydro-4H-carbazol-4-one 3-(hydroxy(2-methyl-1H-imidazol-1-yl)methyl)-9-(hydroxymethyl)-1,2,3,9-tetrahydro-4H-carbazol-4-one
Perospirone Impurity 18 Perospirone Impurity 18
Perospirone Impurity 3 Perospirone Impurity 3 1002359-81-0 C8H11NO2
Dolutegravir Impurity 13(Sodium Salt) Dolutegravir Impurity 13(Sodium Salt)
Paxlovid Impurity 10 Paxlovid Impurity 10
Fondaparinux sodium impurity 4 Fondaparinux sodium impurity 4
Ampicillin Impurity W Ampicillin Impurity W
Lasmiditan Impurity 5 Lasmiditan Impurity 5
Olodaterol Impurity 18 Olodaterol Impurity 18 2727170-18-3
Febuxostat impurity DAC Febuxostat impurity DAC
ETHYL1-METHYL-2-OXOCYCLOPENTANECARBOXYLATE ETHYL1-METHYL-2-OXOCYCLOPENTANECARBOXYLATE 5453-88-3 C9H14O3
Olodaterol Impurity 27 Olodaterol Impurity 27
Ethacridine Impurity 9 Ethacridine Impurity 9
isopropyl 2-(2-(4-chlorobenzoyl)phenoxy)-2-methylpropanoate isopropyl 2-(2-(4-chlorobenzoyl)phenoxy)-2-methylpropanoate
32,50-Dicarboxy-cyanoco balamin 32,50-Dicarboxy-cyanoco balamin
Olodaterol Impurity 30 Olodaterol Impurity 30
3-(2-Aminoethyl)-N-methyl-1H-indole-5-methanesulfonamide 3-(2-Aminoethyl)-N-methyl-1H-indole-5-methanesulfonamide 88919-22-6 C12H17N3O2S
3'-Epi Gemcitabine 3'-Epi Gemcitabine 103882-85-5 C9H11F2N3O4
4-Chloro-6,7-bis-(2-chloroethoxy)quinazoline 4-Chloro-6,7-bis-(2-chloroethoxy)quinazoline 183322-21-6 C12H11Cl3N2O2
4-Hydroxy Omeprazole 4-Hydroxy Omeprazole 301669-82-9 C16H17N3O3S
2-(3,4-dihydroxyphenyl)-2-hydroxy-acetaldehyde 2-(3,4-dihydroxyphenyl)-2-hydroxy-acetaldehyde 13023-73-9 C8H8O4
BRN 0758154 BRN 0758154 69304-48-9 C11H13IN2O5
NSC4751 NSC4751 5393-61-3 C10H10N2O2
Sts 64 Sts 64 24284-84-2 C21H27NO2
2-hydroxy-N-[3-[3-(1-piperidylmethyl)phenoxy]propyl]acetamide 2-hydroxy-N-[3-[3-(1-piperidylmethyl)phenoxy]propyl]acetamide 97900-88-4 C17H26N2O3
Benazepril Related Compound D Benazepril Related Compound D 1347874-67-2 C22H25ClN2O5
2-Cyclopentene-1-carboxylicacid,4-amino-,methylester,(1R,4S)-(9CI) 2-Cyclopentene-1-carboxylicacid,4-amino-,methylester,(1R,4S)-(9CI) 352226-74-5 C7H11NO2
N-methyl-5,6-dihydroxyindole N-methyl-5,6-dihydroxyindole 4821-00-5 C9H9NO2
4-amino-5-chloro-2-ethoxy-N-((2-morpholinyl)methyl)benzamide 4-amino-5-chloro-2-ethoxy-N-((2-morpholinyl)methyl)benzamide 152013-26-8 C14H20ClN3O3
lumelysergol lumelysergol 7079-87-0 C16H20N2O2
5'-deoxypyridoxine 5'-deoxypyridoxine 4811-03-4 C8H11NO2
10-deazaaminopterin 10-deazaaminopterin 52454-37-2 C20H21N7O5
phosphoric acid phosphoric acid 790712-60-6 C16H18F6N5O5P
4-(4-AMINO-3-FLUOROPHENOXY)-N-METHYLPICOLINAMIDE 4-(4-AMINO-3-FLUOROPHENOXY)-N-METHYLPICOLINAMIDE 757251-39-1 C13H12FN3O2
3-Bromo-5-chloropyrazine-2-carbonitrile 3-Bromo-5-chloropyrazine-2-carbonitrile 440124-25-4 C5HBrClN3
4,8-Dichloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-β]pyridin-11-one (Loratadine Impurity) 4,8-Dichloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-β]pyridin-11-one (Loratadine Impurity) 133330-60-6 C14H9Cl2NO
Hydroxy Varenicline Hydroxy Varenicline 357424-21-6 C13H13N3O
ethyl (2S)-pyrrolidine-2-carboxylate ethyl (2S)-pyrrolidine-2-carboxylate 5817-26-5 C7H13NO2
6-(5-Chlor-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-on 6-(5-Chlor-2-pyridyl)-6,7-dihydro-7-hydroxy-5H-pyrrolo[3,4-b]pyrazin-5-on 43200-81-3 C11H7ClN4O2
7-(4-Chlorobutoxy)-1H-quinolin-2-one 7-(4-Chlorobutoxy)-1H-quinolin-2-one 913613-82-8 C13H14ClNO2
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