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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:(Z)-4-HYDROXYTAMOXIFEN
- CAS:65213-48-1
- MF:C26H29NO2
- Structure:
- Chemical Name:10-Methoxyiminostilbene-5-carbonylchloride
- CAS:28721-08-6
- MF:C16H12ClNO2
- Structure:
- Chemical Name:N-((S)-1-(3-(4-Chloro-3-(N-methylmethylsulfonamido)-1-(2,2,2-trifluoroethyl)-1H-indazol-7-yl)-6-(3-methyl-3-(methylsulfonyl)but-1-yn-1-yl)pyridin-2-yl)-2-(3,5-difluorophenyl)ethyl)-2-((3bS,4aR)-5,5-difluoro-3-(trifluoromethyl)-3b,4,4a,5-tetrahydro-1H-cyclopropa[3,4]cyclopenta[1,2-c]pyrazol-1-yl)acetamide
- CAS:2939763-16-1
- MF:C40H34ClF10N7O5S2
- Structure:
- Chemical Name:PIVALOYLOXYMETHYL 6-AMINOPENICILANATE
- CAS:25031-08-7
- MF:C14H22N2O5S
- Structure:
- Chemical Name:4-PYRIDIN-4-YL-BUTYRIC ACID
- CAS:102878-73-9
- MF:C9H11NO2
- Structure:
- Chemical Name:NSC525120
- CAS:10221-08-6
- MF:C8H7Cl3
- Structure:
- Chemical Name:3-(2-cyanoethyl-(2-hydroxyethyl)amino)propanenitrile
- CAS:6305-56-2
- MF:C8H13N3O
- Structure:
- Chemical Name:TRANS-4-[[(2-AMINOPHENYL)METHYL]AMINO]-CYCLOHEXANOL
- CAS:46727-91-7
- MF:C13H20N2O
- Chemical Name:Citalopram Related Compound F
- CAS:
- MF:
- Structure:
- Chemical Name:(9S)-9-Amino-9-deoxoerythromycin
- CAS:26116-56-3
- MF:C37H70N2O12
- Structure:
- Chemical Name:(1R,3aS,4E,7aR)-4-[(2E)-2-[(3S,5R)-3,5-bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-methylenecyclohexylidene]ethylidene]octahydro-7a-methyl-1-[(1R,4S)-1,4,5-trimethylhexyl]-1H-Indene
- CAS:2229745-37-1
- MF:C40H74O2Si2
- Chemical Name:Bumetanide Impurity 23
- CAS:
- MF:
- Chemical Name:Rocuronium Bromide Impurity 34、35、36
- CAS:
- MF:
- Structure:
- Chemical Name:Vinpocetine impurity C
- CAS:70155-05-4
- MF:C23H28N2O3
- Chemical Name:Cloxacillin Impurity X
- CAS:
- MF:
- Chemical Name:1-(4-((2-(4-hydroxypiperidin-1-yl)ethyl)(methyl)carbamoyl)benzyl)piperidine-4-carboxamide
- CAS:
- MF:
- Chemical Name:Azilsartan Impurity 107
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 25
- CAS:
- MF:
- Chemical Name:Paxlovid Impurity 16
- CAS:
- MF:
- Chemical Name:3-(2-(cyclopent-1-en-1-yl)-2-hydroxy-2-phenylacetoxy)-1,1-dimethylpyrrolidin-1-ium bromide
- CAS:
- MF:
- Chemical Name: Fondaparinux sodium impurity 17
- CAS:
- MF:
- Chemical Name:Fondaparinux sodium impurity 12
- CAS:
- MF:
- Chemical Name:Piperacillin impurity L
- CAS:
- MF:
- Chemical Name:Piperacillin Impurity X
- CAS:
- MF:
- Structure:
- Chemical Name:ETHYLTRITYLETHER
- CAS:968-39-8
- MF:C21H20O
- Chemical Name:Bosutinib Impurity 41
- CAS:
- MF:
- Structure:
- Chemical Name:(S)-3-Dimethylamino-3-phenylpropanol
- CAS:82769-75-3
- MF:C11H17NO
- Chemical Name:Valdecoxib N-Oxide
- CAS:
- MF:
- Chemical Name:Olodaterol Impurity 23
- CAS:
- MF:
- Chemical Name: Miglitol Isomer impurities C
- CAS:
- MF:
- Chemical Name:Alpha-D-Methylglucoside
- CAS:
- MF:
- Structure:
- Chemical Name:4-Desacetyl Vincristine
- CAS:3704-01-6
- MF:C44H54N4O9
- Chemical Name: Relugolix Impurity 91
- CAS:
- MF:
- Structure:
- Chemical Name:D,L N-Desmethylvenlafaxine
- CAS:149289-30-5
- MF:C16H25NO2
- Chemical Name:Orforglipron impurity 33
- CAS:
- MF:
- Chemical Name:Orforglipron Impurity 40
- CAS:
- MF:
- Structure:
- Chemical Name:6-(3-CHLOROPHENYL)-1,3,5-TRIAZINE-2,4-DIAMINE
- CAS:4514-54-9
- MF:C9H8ClN5
- Structure:
- Chemical Name:α-Methyl-3,4-dihydroxy-L-phenylalanine methyl ester
- CAS:18181-08-3
- MF:C11H15NO4
- Structure:
- Chemical Name:(6R,7R)-3-Chloromethyl-7-methoxy-8-oxo-7-(p-toluoylamino)-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid diphenylmethyl ester
- CAS:68314-38-5
- MF:C30H27ClN2O6
- Structure:
- Chemical Name:Methyl a-formylphenylacetate
- CAS:5894-79-1
- MF:C10H10O3
- Structure:
- Chemical Name:1-Butanesulfonic acid methyl ester
- CAS:2374-69-8
- MF:C5H12O3S
- Structure:
- Chemical Name:D-(-)-3-Acetylthio-2-methylpropionic acid
- CAS:76497-39-7
- MF:C6H10O3S
- Structure:
- Chemical Name:OLANEXIDINE
- CAS:146510-36-3
- MF:C17H27Cl2N5
- Structure:
- Chemical Name:1-(2-ETHOXY-ETHYL)-1,3-DIHYDRO-BENZOIMIDAZOL-2-ONE
- CAS:101953-61-1
- MF:C11H14N2O2
- Structure:
- Chemical Name:3-Cyano-4-(2-methylpropoxy)benzenecarbothioamide
- CAS:163597-57-7
- MF:C12H14N2OS
- Structure:
- Chemical Name:1-BOC-4-(2-AMINO-4-PYRIDINYL)-PIPERAZINE
- CAS:571189-23-6
- MF:C14H22N4O2
- Structure:
- Chemical Name:1,3,5,7-Tetranitroadamantane
- CAS:75476-36-7
- MF:C10H12N4O8
- Structure:
- Chemical Name:Fexofenadinone
- CAS:76811-98-8
- MF:C32H37NO4
- Structure:
- Chemical Name:2’-Deschloro-2’-hydroxy Dasatinib
- CAS:1159977-25-9
- MF:C22H27N7O3S
- Structure:
- Chemical Name:rac Benzyl Phenylephrine
- CAS:1159977-09-9
- MF:C16H19NO2
- Structure:
- Chemical Name: Atorvastatin Acetonide
- CAS:581772-29-4
- MF:C36H39FN2O5
- Structure:
- Chemical Name:4H-Imidazo[1,5-a][1,4]benzodiazepine-3-carboxylicacid, 5,6-dihydro-8-hydroxy-5-methyl-6-oxo-, ethyl ester
- CAS:131666-45-0
- MF:C15H15N3O4
- Structure:
- Chemical Name:α,α-Bis[2-(dimethylamino)ethyl]-
- CAS:1246816-57-8
- MF:C16H24ClN3
- Structure:
- Chemical Name:(3R,5R)-6-Cyano-3,5-dihydroxy-hexanoic Acid tert-Butyl Ester
- CAS:125971-93-9
- MF:C11H19NO4
- Structure:
- Chemical Name:2-Desethoxy-2-hydroxy-2H-2-ethyl Candesartan Cilexetil
- CAS:1185256-03-4
- MF:C33H34N6O6
- Structure:
- Chemical Name:N-Desethyl-N-propyl Oxybutynin
- CAS:1215677-72-7
- MF:C23H33NO3
- Structure:
- Chemical Name:(9E)-Erythromycin 9-[O-[[(2-Methoxyethoxy)methoxy]methyl]oxime]
- CAS:425365-64-6
- MF:C42H78N2O16
- Structure:
- Chemical Name:3-Oxo Atorvastatin
- CAS:887196-30-7
- MF:C33H33FN2O5
- Structure:
- Chemical Name:Octyl Orlistat
- CAS:1243011-56-4
- MF:C31H57NO5
- Structure:
- Chemical Name:1,2,3,4-Tetrahydro-4,8-dihydroxy-2-methyl-isoquinoline
- CAS:23824-25-1
- MF:C10H13NO2
- Structure:
- Chemical Name:(E)-Cefetamet Pivoxil
- CAS:1705612-82-3
- MF:C20H25N5O7S2
- Structure:
- Chemical Name:{3-[2-(DiMethylaMino)ethyl]-5-[(pyrrolidine-1-yl)sulfonylMethyl]-1H-indol-1-yl}Methanol
- CAS:1018676-02-2
- MF:C18H27N3O3S
- Structure:
- Chemical Name:{3-[2-(DiMethylaMino)ethyl]-5-[(pyrrolidine-1-yl)sulfonylMethyl]-1H-indol-1-yl}Methanol
- CAS:1018676-02-2
- MF:C18H27N3O3S
- Structure:
- Chemical Name:8-Dechloro-9-chloro Desloratadine
- CAS:117811-13-9
- MF:C19H19ClN2
- Structure:
- Chemical Name:Acyclovir L-Isoleucinate
- CAS:142963-63-1
- MF:C14H22N6O4
- Structure:
- Chemical Name:Carvedilol Bisalkylpyrocatechol IMpurity
- CAS:1346602-98-9
- MF:C40H42N4O6
- Structure:
- Chemical Name:Decarboxyl Ofloxacin
- CAS:123155-82-8
- MF:C17H20FN3O2
- Structure:
- Chemical Name:o-AdaMantylanisole
- CAS:43109-77-9
- MF:C17H22O
- Structure:
- Chemical Name:2-[[(5-hydroxy-1H-benziMidazol-2-yl)sulfinyl]Methyl]-3,5-diMethyl-1-4(1H)-pyridone
- CAS:
- MF:C15H15N3O3S
- Structure:
- Chemical Name:Perindopril Impurity
- CAS:145513-56-0
- MF:C19H32N2O5
- Structure:
- Chemical Name:4-Acetoxyisophthalic Acid
- CAS:5985-26-2
- MF:C10H8O6
- Structure:
- Chemical Name:Ganciclovir Dipropionate
- CAS:86357-20-2
- MF:C15H21N5O6
- Structure:
- Chemical Name:IMp. A (EP): (RS)-2-Chloro-N-(2-Methylphenyl)-PropanaMide
- CAS:39084-88-3
- MF:C10H11Cl2NO
- Structure:
- Chemical Name:1β-Hydroxy-6α-Methyl-1,4-androstadiene-3,17-dione
- CAS:61919-52-6
- MF:C20H26O3
- Structure:
- Chemical Name:5-Fluoro ent-LaMivudine Acid D-Menthol Ester
- CAS:764659-79-2
- MF:C18H26FN3O4S
- Structure:
- Chemical Name:Tricyclo[3.3.1.13,7]decan-1-aMine, 3,5,7-triMethyl-, hydrochloride
- CAS:15210-60-3
- MF:C13H24ClN
- Structure:
- Chemical Name:3-((butyryloxy)Methyl) 5-Methyl 4-(2',3'-dichlorophenyl)-2,6-diMethylpyridine-3,5-dicarboxylate
- CAS:188649-48-1
- MF:C21H21Cl2NO6
- Structure:
- Chemical Name:Bis Valacyclovir (~90%)
- CAS:1356019-51-6
- MF:C27H40N12O8
- Structure:
- Chemical Name:Flupirtine DiMer
- CAS:1417916-52-9
- MF:C30H32F2N8O4
- Structure:
- Chemical Name:(S)-2-((R)-1-(3,5-bis(trifluoroMethyl)phenyl)ethoxy)-4-benzylMorpholin-3-one
- CAS:327623-36-9
- MF:C21H19F6NO3
- Structure:
- Chemical Name:3-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonaMide
- CAS:2304623-36-5
- MF:C16H14N2O3S
- Structure:
- Chemical Name:(S)-2-(3,4-Difluorophenyl)oxirane
- CAS:1006376-63-1
- MF:C8H6F2O
- Structure:
- Chemical Name:EsoMeprazole iMpurity
- CAS:1424857-86-2
- MF:C11H15NO3
- Structure:
- Chemical Name:AMoxicillin iMpurity L
- CAS:
- MF:C16H19N3O5S
- Structure:
- Chemical Name:AMoxicillin iMpurity L
- CAS:
- MF:C16H19N3O5S
- Chemical Name:Azilsartan iMpurity G
- CAS:
- MF:
- Structure:
- Chemical Name:(R)-N-(1-(naphthalen-1-yl)ethyl)-3-(M-tolyl)propan-1-aMine
- CAS:253337-60-9
- MF:C22H25N
- Structure:
- Chemical Name:3-((3R,4R)-4-Methyl-3-(Methyl(7H-pyrrolo[2,3-d]pyriMidin-4-yl)aMino)piperidin-1-yl)-3-oxopropanaMide
- CAS:1675248-19-7
- MF:C16H22N6O2
- Structure:
- Chemical Name:Blonanserin iMpurity
- CAS:132810-83-4
- MF:C23H30FN3
- Structure:
- Chemical Name:Deferasirox iMpurity
- CAS:1688656-83-8
- MF:C42H28N6O8S
- Structure:
- Chemical Name:Lercanidipine iMpurity
- CAS:320750-19-4
- MF:C37H43N3O6
- Structure:
- Chemical Name:AMpicillin EP IMpurity J
- CAS:6489-58-3
- MF:C13H20N2O4S
- Structure:
- Chemical Name:Anastrozole IMpurity (alfa1 , alfa1, alfa3, alfa3-TetraMethyl-5-(1H-1,2,4-triazol-1-ylMethyl)-1,3-BenzenediacetaMide)
- CAS:120512-04-1
- MF:C17H23N5O2
- Structure:
- Chemical Name:Anastrozole IMpurity (alfa1 , alfa1, alfa3, alfa3-TetraMethyl-5-(1H-1,2,4-triazol-1-ylMethyl)-1,3-BenzenediacetaMide)
- CAS:120512-04-1
- MF:C17H23N5O2
- Structure:
- Chemical Name:CefathiaMidine Lactone
- CAS:905712-22-3
- MF:C17H24N4O4S2
- Structure:
- Chemical Name:Cinacalcet IMpurity 9
- CAS:802918-36-1
- MF:C22H24F3N
- Structure:
- Chemical Name:Doxorubicin IMpurity B
- CAS:106401-68-7
- MF:C29H34BrNO11
- Chemical Name:EzetiMibe IMpurity B
- CAS:
- MF:
- Structure:
- Chemical Name:Fluconazole IMpurity [1, 3-Bis(1H-1, 2, 4-Triazole-1-yl)propan-2-one]
- CAS:1449785-88-9
- MF:C10H7F2N3O
- Structure:
- Chemical Name:HydroxyMethylidene thione
- CAS:1320360-86-8
- MF:C15H18N4OS