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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Oseltamivir Impurity 78
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 67
- CAS:
- MF:
- Chemical Name:Ixazomib Impurity ABCDEFGHJKL
- CAS:
- MF:
- Structure:
- Chemical Name:2-[[[4-(2,2-dimethyl-1-oxopropoxy)phenyl]sulfonyl]amino]-Benzoic acid
- CAS:188114-98-9
- MF:C18H19NO6S
- Structure:
- Chemical Name:2-chloromethyl-4-(3-hydroxypropoxy)-3-methylpyridine
- CAS:117976-92-8
- MF:C10H14ClNO2
- Structure:
- Chemical Name:8-Methoxy Entecavir
- CAS:2203740-23-0
- MF:C13H17N5O4
- Structure:
- Chemical Name:Bortezomib Impurity 32
- CAS:1310383-72-2
- MF:C17H31BF3NO5
- Chemical Name:Topiroxostat Impurity 14
- CAS:
- MF:
- Structure:
- Chemical Name:1-Pyrrolidinecarboxylic acid, 4-hydroxy-2-(3-thiazolidinylcarbonyl)-, 1,1-dimethylethyl ester, (2S,4S)-
- CAS:401564-34-9
- MF:C13H22N2O4S
- Chemical Name:Ampicillin Impurity B
- CAS:
- MF:
- Chemical Name:Clindamycin Phosphate EP Impurity K
- CAS:
- MF:
- Structure:
- Chemical Name:7,7'-(butane-1,4-diylbis(oxy))bis(quinolin-2(1H)-one)
- CAS:2116542-19-7
- MF:C22H20N2O4
- Structure:
- Chemical Name:Descyclopropyl Lenvatinib
- CAS:417719-51-8
- MF:C18H15ClN4O4
- Structure:
- Chemical Name:3-Piperidinemethanol, 4-(4-fluorophenyl)-1-methyl-, (3R,4R)-rel-
- CAS:54088-21-0
- MF:C13H18FNO
- Structure:
- Chemical Name:1'-Hydroxy Bilastine
- CAS:1638785-23-5
- MF:C28H37N3O4
- Structure:
- Chemical Name:Brexpiprazole Impurity 4
- CAS:2116542-20-0
- MF:C25H27N3O2S
- Structure:
- Chemical Name:Fosaprepitant Impurity 5
- CAS:327623-35-8
- MF:C21H19F6NO3
- Structure:
- Chemical Name:Moxifloxacin Ethyl Ester
- CAS:1403836-23-6
- MF:C23H28FN3O4
- Structure:
- Chemical Name:4'-Hydroxy TorseMide
- CAS:99300-67-1
- MF:C16H20N4O4S
- Structure:
- Chemical Name:Hydroxyzine Acetic Acid Dihydrochloride
- CAS:83881-56-5
- MF:C23H29ClN2O4
- Structure:
- Chemical Name:(S)-Duloxetine SuccinaMide
- CAS:199191-66-7
- MF:C22H23NO4S
- Structure:
- Chemical Name:4-Acetyl Rhein
- CAS:875535-36-7
- MF:C17H10O7
- Structure:
- Chemical Name:1-(2,6-dichlorophenyl)piperazine
- CAS:63386-61-8
- MF:C10H12Cl2N2
- Structure:
- Chemical Name:1-(2,6-dichlorophenyl)piperazine
- CAS:63386-61-8
- MF:C10H12Cl2N2
- Structure:
- Chemical Name:Ropivacaine N-Oxide
- CAS:1391053-59-0
- MF:C17H26N2O2
- Chemical Name:Ticagrelor IMpurity L (Mixture of DiastereoMers)
- CAS:
- MF:
- Structure:
- Chemical Name:α-Hydroxy-α-3-thienyl-2-thiopheneacetic Acid 9-Methyl-3-oxa-9-azatricyclo[3.3.1.02,4]non-7-yl Ester
- CAS:783273-13-2
- MF:C18H19NO4S2
- Structure:
- Chemical Name:3H-4,7a-Methanocyclohept[3,3a]indeno[5,4-b]oxete Benzenepropanoic Acid Derivative
- CAS:146139-03-9
- MF:C47H51NO14
- Structure:
- Chemical Name:Fluvastatin 3-Hydroxy-4,6-diene
- CAS:1207963-21-0
- MF:C24H24FNO3
- Chemical Name:Cyclosporine iMpurity
- CAS:
- MF:
- Structure:
- Chemical Name:ThiaMine IMpurity
- CAS:
- MF:C12H17ClN4OS
- Chemical Name:CitalopraM IMpurity
- CAS:
- MF:
- Structure:
- Chemical Name:Bupivacaine Impurity
- CAS:780736-98-3
- MF:C14H20N2O
- Structure:
- Chemical Name:rel-(4aR,7aR)-6-Benzyloctahydro-1H-pyrrolo[3,4-b]pyridine
- CAS:161594-54-3
- MF:C14H20N2
- Structure:
- Chemical Name:1,2-bis(4-(3-(trifluoromethyl)phenyl)piperazin-1-yl)ethane
- CAS:51299-16-2
- MF:C24H28F6N4
- Structure:
- Chemical Name:(R)-N-(1-(7,8-dihydronaphthalen-1-yl)ethyl)-3-(3-(trifluoromethyl)phenyl)propan-1-amine
- CAS:802918-35-0
- MF:C22H24F3N
- Structure:
- Chemical Name:Demiditraz racemate
- CAS:944263-08-5
- MF:C13H16N2
- Structure:
- Chemical Name:Ropivacaine-iPr
- CAS:175888-75-2
- MF:C17H26N2O
- Structure:
- Chemical Name:Demiditraz IMpurity
- CAS:944267-48-5
- MF:C19H18N2O
- Structure:
- Chemical Name:Apremilast impurity 18
- CAS:1407140-51-5
- MF:C20H32N2O6S
- Structure:
- Chemical Name:Betamethasone EP Impurity F
- CAS:330157-04-5
- MF:C22H28O4
- Chemical Name:Capecitabine Impurity 8
- CAS:
- MF:
- Chemical Name:Carfilzomib Impurity D
- CAS:
- MF:
- Chemical Name:Cefodizime Impurity 4
- CAS:
- MF:
- Structure:
- Chemical Name:Cefradine impurity 5
- CAS:1379292-16-6
- MF:C10H17NO2
- Structure:
- Chemical Name:Clopidogrel Impurity 13
- CAS:2173294-69-2
- MF:C16H16ClNO5S2
- Chemical Name:DecitaBine Impurity 12
- CAS:
- MF:
- Chemical Name:Erlotinib Impurity 28
- CAS:
- MF:
- Structure:
- Chemical Name:Pantoprazole Impurity 5
- CAS:1806469-15-7
- MF:C8H6F2N2O2
- Structure:
- Chemical Name:Venlafaxine Impurity 5
- CAS:1346600-77-8
- MF:C17H27NO2
- Structure:
- Chemical Name:N-(4-methyl-3-(4-methyl-6-(pyridin-3-yl)pyrimidin-2-ylamino)phenyl)-4-((4-methylpiperazin-1-yl)methyl)benzamide
- CAS:
- MF:C30H33N7O
- Structure:
- Chemical Name:Exemestane impurity B -F
- CAS:184972-09-6
- MF:C20H26O3
- Structure:
- Chemical Name:Fesoterodine Impurity 8
- CAS:1380491-71-3
- MF:C48H66N2O4
- Structure:
- Chemical Name:QBWNUEJPRUVNTD-FOIQADDNSA-N
- CAS:1346602-17-2
- MF:C22H17N3O5
- Structure:
- Chemical Name:Fosaprepitant Impurity 12
- CAS:172673-19-7
- MF:C23H22F7N4O6P
- Structure:
- Chemical Name:Ibuprofen Impurity 2
- CAS:
- MF:C13H18O2
- Chemical Name:Imatinib Impurity 9
- CAS:
- MF:
- Chemical Name:Isavuconazole Impurity 22
- CAS:
- MF:
- Chemical Name:Isavuconazole Impurity 28
- CAS:
- MF:
- Structure:
- Chemical Name:Levothyroxine Impurity 16
- CAS:909279-46-5
- MF:C15H11ClI3NO4
- Chemical Name:Linagliptin Impurity 42
- CAS:
- MF:
- Chemical Name:PalBociclib Impurity 25
- CAS:
- MF:
- Structure:
- Chemical Name:Posaconazole Impurity 13
- CAS:357189-98-1
- MF:C37H40F2N8O6
- Structure:
- Chemical Name:Posaconazole Impurity 25
- CAS:1042398-26-4
- MF:C16H19F2IO3
- Structure:
- Chemical Name:Posaconazole Impurity 42
- CAS:357189-96-9
- MF:C36H40F2N8O5
- Chemical Name:Posaconazole Impurity 65
- CAS:
- MF:
- Structure:
- Chemical Name:Pramipexole Dimer Impurity (Mixture of Diastereomers)
- CAS:1147937-31-2
- MF:C13H23N3S
- Chemical Name:Sitafloxacin Impurity 1
- CAS:
- MF:
- Chemical Name:Sitagliptin Impurity 25
- CAS:
- MF:
- Chemical Name:sofosBuvir impurity 47
- CAS:
- MF:
- Chemical Name:SofosBuvir Impurity 64
- CAS:
- MF:
- Chemical Name:Tofacitinib Impurity W
- CAS:
- MF:
- Chemical Name:Trelagliptin Impurity 21
- CAS:
- MF:
- Structure:
- Chemical Name:Kaempferol-3-rhamnoglucoside-7-glucoside
- CAS:34336-18-0
- MF:C33H40O20
- Structure:
- Chemical Name:Mupirocin iMpurity 2
- CAS:
- MF:C26H44O9
- Structure:
- Chemical Name:Cytarabine Impurity 10
- CAS:32830-01-6
- MF:C9H11N3O4
- Chemical Name:Ceftriaxone Sodium impurity 5
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Org48302 Impurity
- CAS:
- MF:
- Structure:
- Chemical Name:176761-00-5
- CAS:176761-00-5
- MF:C17H15FN2O5
- Chemical Name:Pramipexole Impurity W
- CAS:
- MF:
- Structure:
- Chemical Name:Aprepitant Impurity 44
- CAS:172676-88-9
- MF:C23H21F7N4O3
- Chemical Name:Oseltamivir Impurity 26
- CAS:241465-24-7
- MF:
- Chemical Name:Afatinib Impurity I
- CAS:
- MF:
- Chemical Name:Moxifloxacin Impurity 5
- CAS:
- MF:
- Chemical Name:Moxifloxacin Impurity 24
- CAS:
- MF:
- Chemical Name:Fosaprepitant Impurity 1
- CAS:
- MF:
- Chemical Name:Ticagrelor Impurity 1
- CAS:
- MF:
- Chemical Name:Ezetimibe Impurity 36
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 2
- CAS:
- MF:
- Chemical Name:Fudosteine Impurity 2
- CAS:
- MF:
- Chemical Name:Sugammadex Impurity 18
- CAS:
- MF:
- Chemical Name:Mirabegron Impurity 21
- CAS:
- MF:
- Structure:
- Chemical Name:Apixaban Impurity 18
- CAS:473927-65-0
- MF:C20H17IN4O3
- Structure:
- Chemical Name:Clopidogrel Impurity 12
- CAS:
- MF:C15H14ClNO2S
- Chemical Name:Oseltamivir Impurity 25
- CAS:
- MF:
- Chemical Name:Ritonavir EP Impurity P
- CAS:
- MF:
- Structure:
- Chemical Name:Tacrolimus Impurity 4
- CAS:686773-61-5
- MF:C44H69NO12
- Structure:
- Chemical Name:(2R,4S)-isopropyl5-([1,1'-biphenyl]-4-yl)-4-(2,5-dioxopyrrolidin-1- yl)-2-methylpentanoate
- CAS:
- MF:C25H29NO4
- Structure:
- Chemical Name:methyl 3-(4-(2-hydroxy-3-(isopropylamino)propoxy)phenyl)-3- oxopropanoate hydrochloride
- CAS:
- MF:C16H24ClNO5
- Chemical Name:Aprepitant iMpurity 37
- CAS:
- MF: