| Structure | Chemical Name | CAS | MF | 
|  | Palonosetron Impurity TM1-YA |  |  | 
|  | Pitavastatin Impurity 33 |  |  | 
|  | Pralatrexate Impurity 14 |  |  | 
|  | Pitavastatin Impurity 51 |  |  | 
|  | Pitavastatin Impurity 59 |  |  | 
|  | Lenvatinib Impurity 42 |  |  | 
|  | Tazobactam Impurity 8 |  |  | 
|  | Prednicarbate Impurity B |  |  | 
|  | Doxofylline Impurity 13 |  |  | 
|  | Afatinib impurity 46 |  |  | 
|  | Canagliflozin Impurity 60 |  |  | 
|  | Canagliflozin Impurity 65 |  |  | 
|  | Rosuvastatin Impurity 75 |  |  | 
|  | Acyclovir Impurity 11 |  |  | 
|  | Selexipag Impurity 6 |  |  | 
|  | Cabozantinib impurity N |  |  | 
|  | Barcitinib impurity-09 | 1187594-16-6 | C14H13N7 | 
|  | Rotigotine Impurity 6 |  |  | 
|  | Olprinone Impurity 7 | 2236020-10-1 | C9H10N2 | 
|  | Cilastatin Impurity 2 |  |  | 
|  | Cilastatin Impurity 7 |  |  | 
|  | Dabrafenib Impurity 1 | 1907654-22-1 | C24H21F3N4O3S2 | 
|  | Trelagliptin Impurity SJ | 2087874-94-8 | C40H42F2N10O6 | 
|  | Eliglustat Impurity 2(Eliglustat SR-Isomer) | 1092472-66-6 | C23H36N2O4 | 
|  | Tamsulosin impurity C |  | C20H28N2O5S | 
|  | Umeclidinium Bromide Impurity 9 DiHCl | 494778-36-8 | C18H32N2O4 | 
|  | Flucloxacillin Impurity 4 |  |  | 
|  | Ipratropium bromide Impurity 4 |  | C20H29Br2NO3 | 
|  | Cefminox Impurity 6 |  |  | 
|  | Afatinib Impurity 55 |  |  | 
|  | Apremilast Impurity 30 |  |  | 
|  | Aprepitant Impurity 33 | 502537-39-5 | C20H20F7NO3 | 
|  | Brivaracetam Impurity 9 |  |  | 
|  | Esomeprazole Impurity 43 |  |  | 
|  | Etoricoxib Impurity 40 |  |  | 
|  | Lenvatinib Impurity 31 |  |  | 
|  | Oseltamivir Impurity 35 | 757965-01-8 | C14H22O4 | 
|  | Palbociclib Impurity 39 |  |  | 
|  | Posaconazole Impurity 75 |  |  | 
|  | Rabeprazole Impurity 22 |  |  | 
|  | Sunitinib Impurity 12 |  |  | 
|  | Ticagrelor Impurity 113 |  |  | 
|  | Ticagrelor Impurity 97 |  |  | 
|  | Tofacitinib Impurity 117 |  |  | 
|  | Trelagliptin Impurity 22 |  |  | 
|  | Trelagliptin Impurity 29 |  |  | 
|  | Vildagliptin Impurity 43 |  |  | 
|  | Dexchlorpheniramine impurity F |  |  | 
|  | Irbesartan IMpurity F |  | C25H28N6O | 
|  | Itraconazole iMpurity 2 |  |  | 
|  | Palbociclib Impurity 6 |  |  | 
|  | Azacitidine Impurity 1 |  |  | 
|  | Saxagliptin Impurity 5 |  |  | 
|  | Cinacalcet Impurity 18 |  |  | 
|  | Erlotinib Impurity 23 | 2021249-11-4 | C23H18F6N6O | 
|  | Erlotinib Impurity 36 |  |  | 
|  | Fasudil Impurity 17 |  |  | 
|  | Febuxostat Impurity 50 |  |  | 
|  | Varenicline Impurity 8 |  |  | 
|  | Ticagrelor Impurity 53 |  |  | 
|  | Edoxaban Impurity 5 |  |  | 
|  | Edoxaban Impurity 11 |  |  | 
|  | Empagliflozin Impurity 5 | 1800196-46-6 | C17H16ClIO3 | 
|  | Carfilzomib Impurity 2 |  |  | 
|  | Oseltamivir Impurity 20 | 212504-90-0 | C12H22N2O3 | 
|  | Febuxostat Impurity 61 |  |  | 
|  | Atosiban Impurity G |  |  | 
| ![1-cyclopropyl-6,8-dimethoxy-7-((4aS,7aS)-octahydro-6H-pyrrolo [3,4-b]pyridin-6-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic](../cas/20211123/gif/2252446-68-5.gif) | 1-cyclopropyl-6,8-dimethoxy-7-((4aS,7aS)-octahydro-6H-pyrrolo [3,4-b]pyridin-6-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic | 2252446-68-5 | C22H28ClN3O5 | 
|  | CINACALCET-001-R | 1630761-22-6 | C11H11BF4N4O | 
|  | Cefotiam Impurity D |  |  | 
|  | Atorvastatin Calcium Hydrate impurity 39 | 2243639-97-4 | C33H35FN2O5 | 
|  | Peramivir Impurity B |  |  | 
|  | AztreonaM IMpurity C |  |  | 
|  | Pramipexole Related Impurity 3 | 2166216-34-6 | C10H17N3OS | 
|  | Lincomycin sulfoxide Impurity 5 |  |  | 
|  | Sulpiride Impurity 4 |  |  | 
|  | Tacrolimus Impurity E |  |  | 
|  | Bumetanide iMpurity E |  |  | 
|  | CLOTRIMAZOLE IMP. A (PHARMEUROPA): (2-CHLOROPHENYL)DIPHENYLMETHANOL | 66774-02-5 | C19H15ClO | 
|  | Methyl 2-Acetyl-3-(3-nitrophenyl)-5-oxo-hexanoate | 2469555-30-2 | C15H17NO6 | 
|  | CLONIDINE RELATED COMPOUND A (25 MG) (ACET-YLCLONIDINE) | 54707-71-0 | C11H11Cl2N3O | 
|  | SULPIRIDE IMPURITY A |  |  | 
|  | Androst-2-en-17-one, (5β)- | 82467-84-3 | C19H28O | 
|  | (2Z)-2,3-Dehydroxy Atorvastatin (>90% Z) | 1191901-60-6 | C33H33FN2O4 | 
|  | (6α,11β)-11,21-Dihydroxy-6-methyl-pregna-1,4-diene-3,20-dione | 103744-18-9 | C22H30O4 | 
|  | 2,5-Thiazolylmethyl Diacarbonate | 144142-33-6 | C28H30N4O5S2 | 
|  | 4-(2-Chloroethyl)-N-methoxy-N,α,α-trimethyl-benzeneacetamide | 1638785-17-7 | C14H20ClNO2 | 
|  | Cefuroxime Impurity A Double-Bond Shift Impurity |  |  | 
|  | 4-(difluoromethoxy)-N1-((3,4-dimethoxypyridin-2-yl)methyl)benzene-1,2-diamine | 2641896-99-1 | C15H17F2N3O3 | 
|  | Peramivir Impurity 21 |  |  | 
|  | Dapagliflozin | 639852-30-5 | C19H44O5Si4 | 
|  | Cabozantinib impurity 52 |  |  | 
|  | Canagliflozin Impurity 71 |  |  | 
|  | N-((4-(5-methyl-2-phenyloxazol-4-yl)phenyl)sulfonyl)propionamide | 2242749-02-4 | C19H18N2O4S | 
|  | Dapoxetine impurity 67 |  |  | 
|  | FENOFIBRIC ACID ETHYL ESTER | 42019-08-9 | C19H19ClO4 | 
|  | 7-ADCA Impuirty 1 |  |  | 
| ![2-Pyrazinecarboxamide, N-[(1S)-2-[[(1Z)-3-methyl-1-buten-1-yl]amino]-2-oxo-1-(phenylmethyl)ethyl]-](../cas/20210305/gif/2276538-67-9.gif) | 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 | 2365474-06-0 | C24H27N8O9+ | 
|  | (S)-2-(pentylsulfonamido)-3-(4-(4-(piperidin-4-yl)butoxy)phenyl)propanoic acid | 1332692-49-5 | C23H38N2O5S |