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Pharmaceutical Impurity Reference Standards
Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:
- 4-aMino-5-chloro-2,3-dihydro-N-4-piperidinyl-7-BenzofurancarboxaMide
- CAS:
- 137211-64-4
- MF:
- C14H18ClN3O2
- Structure:
- Chemical Name:
- (1S,3S,4R)-Entecavir
- CAS:
- 1367369-79-6
- MF:
- C12H15N5O3
- Structure:
- Chemical Name:
- Prasugrel Impurity III
- CAS:
- 1391194-50-5
- MF:
- C20H20FNO3S
- Structure:
- Chemical Name:
- 2-(4-(6-((5-((2-chloro-6-Methylphenyl)carbaMoyl)thiazol-2-yl)aMino)-2-MethylpyriMidin-4-yl)piperazin-1-yl)ethyl acetate
- CAS:
- 1245157-85-0
- MF:
- C24H28ClN7O3S
- Structure:
- Chemical Name:
- Ebastine IMpurity F
- CAS:
- 1429071-63-5
- MF:
- C32H39NO3
- Structure:
- Chemical Name:
- N-((S)-1-(((R)-1-Hydroxy-3-Methylbutyl)aMino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxaMide
- CAS:
- 289472-78-2
- MF:
- C19H24N4O3
- Structure:
- Chemical Name:
- Azilsartan iMpurity O
- CAS:
- 2171316-29-1
- MF:
- C23H19N3O4
- Chemical Name:
- cefoxitin iMpurity C
- Structure:
- Chemical Name:
- 3-((3R,4R)-3-((2-chloro-7H-pyrrolo[2,3-d]pyriMidin-4-yl)(Methyl)aMino)-4-Methylpiperidin-1-yl)-3-oxopropanenitrile
- CAS:
- 1616761-00-2
- MF:
- C16H19ClN6O
- Structure:
- Chemical Name:
- Aprepitant iMpurity
- CAS:
- 96730-04-0
- MF:
- C13H22NO4P
- Structure:
- Chemical Name:
- Doxofylline iMpurity
- CAS:
- 254760-82-2
- MF:
- C11H16N4O4
- Chemical Name:
- forMoterol iMpurity
- Structure:
- Chemical Name:
- LevetiracetaM IMpurity 4
- CAS:
- 1342229-32-6
- MF:
- C10H19NO4
- Structure:
- Chemical Name:
- cinacalcet iMpurity 4
- CAS:
- 955373-56-5
- MF:
- C22H20F3N
- Chemical Name:
- Acyclovir IMpurity J
- Chemical Name:
- AzithroMycin IMpurity K
- Structure:
- Chemical Name:
- AztreonaM IMpurity F
- CAS:
- 102579-57-7
- MF:
- C15H21N5O8S2
- Chemical Name:
- BendaMustine Dideschloroethyl IMpurity
- Structure:
- Chemical Name:
- BroMocriptine IMpurity F
- CAS:
- 82773-21-5
- MF:
- C32H40BrN5O5
- Structure:
- Chemical Name:
- Cephalexin IMpurity J
- MF:
- C16H17N3O4S
- Structure:
- Chemical Name:
- Cetirizine IMpurity (4-Chlorobenzophenone)
- CAS:
- 2724877-99-8
- MF:
- C21H25ClN2O3
- Chemical Name:
- Dasatinib IMpurity 3
- Chemical Name:
- Deferasirox IMpurity 2
- Structure:
- Chemical Name:
- Desvenlafaxine (O-DesMethyl Venlafaxine) FuMarate
- CAS:
- 93414-04-1
- MF:
- C20H29NO6
- Structure:
- Chemical Name:
- EzetiMibe Dehydoxy IMpurity
- CAS:
- 204589-58-2
- MF:
- C24H21F2NO2
- Chemical Name:
- Flurbiprofen IMpurity E
- Chemical Name:
- Levocarnitine IMpurity D
- Structure:
- Chemical Name:
- Montelukast EP IMpurity E
- CAS:
- 1187586-58-8
- MF:
- C41H46ClNO5S2
- Chemical Name:
- Prasugrel IMpurity 6
- Structure:
- Chemical Name:
- RebaMipide 2-Chloro IMpurity
- CAS:
- 90098-06-9
- MF:
- C19H15ClN2O4
- Chemical Name:
- Ribavirin IMp. F (EP)
- Chemical Name:
- RocuroniuM BroMide IMpurity 17
- Structure:
- Chemical Name:
- SalMeterol IMpurity D
- MF:
- C25H37NO4
- Chemical Name:
- SulbactaM IMpurity A
- Structure:
- Chemical Name:
- Tigecycline Metabolite M6 (9-AniMoMinocycline)
- CAS:
- 149934-19-0
- MF:
- C23H28N4O7
- Structure:
- Chemical Name:
- VerapaMil IMpurity G
- MF:
- C27H38N2O4
- Structure:
- Chemical Name:
- EthanediaMide iMpurity D
- CAS:
- 480452-36-6
- MF:
- C21H30ClN5O5
- Structure:
- Chemical Name:
- N-(4-(2-Methyl-5,6-dihydro-4H-benzo[b]oxazolo[5,4-d]azepine-6-carbonyl)phenyl)-[1,1'-biphenyl]-2-carboxaMide
- CAS:
- 168626-93-5
- MF:
- C32H25N3O3
- Structure:
- Chemical Name:
- 1-(4-chlorophenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxaMide
- MF:
- C24H22ClN5O3
- Structure:
- Chemical Name:
- Methyl (4-Methylpiperidin-3-yl)carbaMate
- CAS:
- 1204176-45-3
- MF:
- C8H16N2O2
- Structure:
- Chemical Name:
- (R)-3-(4-(5-broMo-2-chlorobenzyl)phenoxy)tetrahydrofuran
- CAS:
- 915095-90-8
- MF:
- C17H16BrClO2
- Structure:
- Chemical Name:
- (2S,3R,4S,5S,6R)-2-(3-((5-(4-fluorophenyl)thiophen-2-yl)Methyl)-4-Methylphenyl)-tetrahydro-6-(hydroxyMethyl)-2-Methoxy-2H-pyran-3,4,5-triol
- CAS:
- 1358581-37-9
- MF:
- C25H27FO6S
- Structure:
- Chemical Name:
- Levocarnitine iMpurity
- CAS:
- 6490-20-6
- MF:
- C7H17ClN2O2
- Structure:
- Chemical Name:
- 3-Hydroxy-4-Methyl-2(5H)-thiophenone
- CAS:
- 34876-35-2
- MF:
- C5H6O2S
- Structure:
- Chemical Name:
- (1S,3R,7S,8S,8aR)-1,2,3,7,8,8a-Hexahydro-3,7-diMethyl-8-[2-[(2R,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethyl]-1-naphthalenyl Ester (2Z)-2-Methyl-2-butenoic Acid
- CAS:
- 1048973-04-1
- MF:
- C24H34O5
- Structure:
- Chemical Name:
- (6α)-17,21-Dihydroxy-6-Methylpregna-1,4,9(11)-triene-3,20-dione
- CAS:
- 93269-35-3
- MF:
- C22H28O4
- Structure:
- Chemical Name:
- [N(Z)]-N-(3,5-DiMethyl-2(3H)-thiazolylidene)-4-hydroxy-2-Methyl-2H-1,2-benzothiazine-3-carboxaMide 1,1-Dioxide
- CAS:
- 1262333-25-4
- MF:
- C15H15N3O4S2
- Structure:
- Chemical Name:
- Quetiapine Impurity E
- CAS:
- 1371638-05-9
- MF:
- C40H44N6O2S2
- Structure:
- Chemical Name:
- (41S,12S,13aS)-13a-ethyl-12-hydroxy-2,3,41,5,6,12,13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylic acid
- CAS:
- 59413-21-7
- MF:
- C20H25N2NaO3
- Structure:
- Chemical Name:
- BDJS-SH 1
- CAS:
- 36588-45-1
- MF:
- C12H18N2O2
- Chemical Name:
- Acyclovir Impurity O
- Chemical Name:
- Alogliptin Impurity 19
- Structure:
- Chemical Name:
- Aprepitant Impurity 17
- CAS:
- 1333998-27-8
- MF:
- C20H19ClF7NO2
- Chemical Name:
- Blonanserin impurity A
- Chemical Name:
- Captopril impurity 2
- Structure:
- Chemical Name:
- Ciprofloxacin Impurity D HCl
- CAS:
- 526204-10-4
- MF:
- C17H18FN3O3
- Chemical Name:
- Clindamycin Impurity 6
- Chemical Name:
- Dabigatran Impurity 5
- Chemical Name:
- DecitaBine Impurity 10
- Structure:
- Chemical Name:
- Empagliflozin Impurity 17
- CAS:
- 2452301-27-6
- MF:
- C23H28O7
- Chemical Name:
- Erlotinib Impurity 31
- Chemical Name:
- Everolimus impurity C
- Chemical Name:
- Ezetimibe Impurity 28
- Chemical Name:
- FeBuxostat Impurity 30
- Structure:
- Chemical Name:
- Fluconazole Impurity 5
- CAS:
- 94952-36-0
- MF:
- C13H12F2N6O
- Chemical Name:
- Fosaprepitant Impurity 2
- Structure:
- Chemical Name:
- Imidafenacin Impurity 4
- CAS:
- 503598-78-5
- MF:
- C16H18N2O
- Chemical Name:
- Intedanib Impurity H
- Chemical Name:
- Isavuconazole Impurity 16
- Chemical Name:
- Isavuconazole Impurity 4
- Structure:
- Chemical Name:
- Lenvatinib Impurity 4
- MF:
- C28H22ClN5O5
- Chemical Name:
- Linagliptin Impurity 45
- Chemical Name:
- MiraBegron Impurity F
- Chemical Name:
- Moxifloxacin Impurity 19
- Structure:
- Chemical Name:
- Moxifloxacin Impurity 34
- CAS:
- 1824286-08-9
- MF:
- C9H7ClF2O3
- Structure:
- Chemical Name:
- Nifedipine Impurity J
- CAS:
- 114709-68-1
- MF:
- C16H17N3O5
- Structure:
- Chemical Name:
- Oxiracetam Impurity I
- CAS:
- 142274-07-5
- MF:
- C7H9NO4
- Chemical Name:
- PalBociclib Impurity 4
- Chemical Name:
- Plerixafor Impurity 4
- Chemical Name:
- Posaconazole Impurity 29
- Chemical Name:
- Posaconazole Impurity 34
- Chemical Name:
- Posaconazole Impurity 58
- Structure:
- Chemical Name:
- Pregabalin Impurity 4
- CAS:
- 1955498-14-2
- MF:
- C10H22ClNO2
- Chemical Name:
- Rabeprazole Impurity 17
- Chemical Name:
- SofosBuvir Impurity 14
- Chemical Name:
- sofosBuvir Impurity 34
- Chemical Name:
- SofosBuvir Impurity 50
- Chemical Name:
- SofosBuvir Impurity 56
- Structure:
- Chemical Name:
- Tofacitinib impurity T
- CAS:
- 1092578-43-2
- MF:
- C16H20N6O
- Structure:
- Chemical Name:
- Valsartan Impurity 39
- MF:
- C24H29N5O3
- Structure:
- Chemical Name:
- Donepezil Impurity
- CAS:
- 844694-84-4
- MF:
- C24H31NO2
- Structure:
- Chemical Name:
- imp.E
- CAS:
- 950781-89-2
- MF:
- C13H12F3N3O3
- Structure:
- Chemical Name:
- Lidocaine EP Impurity
- CAS:
- 31785-64-5
- MF:
- C12H18N2O.ClH
- Structure:
- Chemical Name:
- Prucalopride Impurity 1
- CAS:
- 1900715-96-9
- MF:
- C18H24ClN3O3
- Structure:
- Chemical Name:
- 3-(5-CHLOROPYRID-2-YL)CARBAMOYLPYRAZINE-2-CARBOXYLIC ACID(WXG01564)
- CAS:
- 43200-83-5
- MF:
- C11H7ClN4O3
- Chemical Name:
- Ampicillin Impurity Q
- Chemical Name:
- Cefdinir Impurity PQ(CP)
- Chemical Name:
- Cefdinir Impurity IJKL
- Chemical Name:
- Ceftazidime Impurity A (EP)
- Chemical Name:
- Oxacillin Sodium Impurity E(EP)