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Pharmaceutical Impurity Reference Standards
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- Chemical Name: Bumetanide Photodegradable Impurity 16
- CAS:
- MF:
- Chemical Name:Bisoprolol Impurity 47
- CAS:
- MF:
- Chemical Name:Gadobutrol Impurity 11(Ammonium salt)
- CAS:
- MF:
- Chemical Name:Flomoxef Impurity F
- CAS:
- MF:
- Chemical Name:Tegoprazan Impurity 15
- CAS:
- MF:
- Chemical Name:Nirmatrelvir Impurity 8
- CAS:
- MF:
- Chemical Name:Nirmatrelvir Impurity 2
- CAS:
- MF:
- Chemical Name:(5-(2-fluorophenyl)-1H-pyrrol-3-yl)methanamine hydrochloride
- CAS:
- MF:
- Chemical Name:Rocuronium Bromide Impurity 24 、25
- CAS:
- MF:
- Structure:
- Chemical Name:decyl D-glucoside
- CAS:54549-25-6
- MF:C16H32O6
- Structure:
- Chemical Name:1-benzyl-4-phenylpiperidin-4-ol
- CAS:63843-83-4
- MF:C18H21NO
- Structure:
- Chemical Name:[(±)-(4-amino-2-hydroxy-4-oxobutyl)trimethylammonium] chloride
- CAS:5261-99-4
- MF:C7H18ClN2O2+
- Structure:
- Chemical Name:(S,R)-Palonosetron N-Oxide
- CAS:
- MF:C19H24N2O2
- Structure:
- Chemical Name:17,21-dihydroxy-16beta-methylpregna-1,4,9(11)-triene-3,20-dione
- CAS:13504-15-9
- MF:C22H28O4
- Structure:
- Chemical Name:Sulfamide, N-[6-[2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy]-5-phenyl-4-pyrimidinyl]-N'-propyl-
- CAS:2300968-87-8
- MF:C19H21BrN6O4S
- Structure:
- Chemical Name:Benzeneacetonitrile, 4-(4-chloro-1-oxobutyl)-α,α-dimethyl-
- CAS:169032-17-1
- MF:C14H16ClNO
- Chemical Name:Oseltamivir Impurity 103
- CAS:
- MF:
- Structure:
- Chemical Name:5-BroModescyano CitalopraM
- CAS:64169-39-7
- MF:C19H21BrFNO
- Structure:
- Chemical Name:Aripiprazole N,N-Dioxide
- CAS:573691-13-1
- MF:C23H27Cl2N3O4
- Structure:
- Chemical Name:Deschloro Cetirizine Dihydrochloride
- CAS:83881-54-3
- MF:C21H26N2O3
- Structure:
- Chemical Name:DesvancosaMinyl VancoMycin
- CAS:101485-50-1
- MF:C59H62Cl2N8O22
- Structure:
- Chemical Name:rac N-Desbutyroyl Acebutolol
- CAS:57898-80-3
- MF:C14H22N2O3
- Structure:
- Chemical Name:rac-Clopidogrel-MP Endo Derivative
- CAS:1346598-12-6
- MF:C25H26ClNO6S
- Structure:
- Chemical Name:1,1'-N-[Methylenebis(sulphanediylethylene)]bis(N'-Methyl-2-nitroethene-1,1-diaMine
- CAS:1331637-48-9
- MF:C11H22N6O4S2
- Structure:
- Chemical Name:ent-LaMivudine
- CAS:134680-32-3
- MF:C8H11N3O3S
- Structure:
- Chemical Name:Formoterol O-β-D-Glucuronide
- CAS:615551-59-2
- MF:C25H32N2O10
- Structure:
- Chemical Name:Mono-POC Tenofovir 6-Isopropyl CarbaMate
- CAS:1244022-56-7
- MF:C18H28N5O9P
- Chemical Name:fenofibrate iMpurity
- CAS:
- MF:
- Structure:
- Chemical Name:6,11-Di-O-Methyl ErythroMycin
- CAS:81103-14-2
- MF:C39H71NO13
- Structure:
- Chemical Name:ent-OseltaMivir Phosphate
- CAS:1035895-89-6
- MF:C16H29N2O8P
- Structure:
- Chemical Name:3,5,3',5'-Tetraiodo Thyrolactic Acid
- CAS:7069-47-8
- MF:C15H10I4O5
- Structure:
- Chemical Name:3-cyano-4-isobutoxybenzaMide
- CAS:161718-85-0
- MF:C12H14N2O2
- Structure:
- Chemical Name:Caffeidinecarboxylic acid
- CAS:54536-15-1
- MF:C8H12N4O3
- Structure:
- Chemical Name:1-Keto BaMbuterol
- CAS:112935-94-1
- MF:C18H27N3O5
- Structure:
- Chemical Name:7-Chloro-4-(4-hydroxyanilino)quinoline
- CAS:81099-86-7
- MF:C15H11ClN2O
- Structure:
- Chemical Name:Desfluoro EzetiMibe
- CAS:302781-98-2
- MF:C24H22FNO3
- Structure:
- Chemical Name:5-(2-Bromo-1-oxobutyl)-8-hydroxy-2(1H)-quinolinone
- CAS:59827-93-9
- MF:C13H12BrNO3
- Chemical Name:Oseltamivir Impurity 101
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 90
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 79
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 73
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 69
- CAS:
- MF:
- Structure:
- Chemical Name:10-methoxy-6-methylergoline-8beta-methanol
- CAS:35121-60-9
- MF:C17H22N2O2
- Chemical Name:INDEX NAME NOT YET ASSIGNED
- CAS:2514957-39-0
- MF:C16H16FN3O4
- Structure:
- Chemical Name:Propanoic acid, 2,2-dimethyl-, 4-[[[2-[[(2-methoxy-2-oxoethyl)amino]carbonyl]phenyl]amino]sulfonyl]phenyl ester
- CAS:127373-95-9
- MF:C21H24N2O7S
- Chemical Name:Fulvestrant Impurity 1
- CAS:
- MF:
- Chemical Name:CefazolinH020-02-I-02
- CAS:
- MF:
- Structure:
- Chemical Name:(E)-3-[cyano(2,3-dichlorophenyl)methylene]carbazamidine
- CAS:94213-24-8
- MF:C9H7Cl2N5
- Structure:
- Chemical Name:5-Pyrimidinecarboxylic acid, 4-amino-6-[1-[(1R)-2-cyano-1-cyclopentylethyl]-1H-pyrazol-4-yl]-
- CAS:2606144-44-7
- MF:C16H18N6O2
- Structure:
- Chemical Name:3-Quinolinecarboxylic acid, 7-[(4aS,7aS)-1-acetyloctahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-
- CAS:1395471-26-7
- MF:C23H26FN3O5
- Structure:
- Chemical Name:N-[3-acetyl-4-(oxiranylmethoxy)phenyl]butyramide
- CAS:28197-66-2
- MF:C15H19NO4
- Structure:
- Chemical Name:8-isopropyl-8-azabicyclo[3.2.1]octan-3-one
- CAS:3423-28-7
- MF:C10H17NO
- Structure:
- Chemical Name:N-Desmethyl Citalopram-d4 Oxalate
- CAS:62498-68-4
- MF:C21H21FN2O5
- Structure:
- Chemical Name:4-(2,3-DIMETHYL-BENZYL)-1H-IMIDAZOLE HCL H2O
- CAS:90038-00-9
- MF:C12H17ClN2O
- Structure:
- Chemical Name:(2S,3S,5S)-2-Hexyl-3,5-dihydroxyhexadecanoic Acid
- CAS:130793-30-5
- MF:C22H44O4
- Structure:
- Chemical Name:(1,2,4-Triazol-4-yl) Itraconazole
- CAS:854372-77-3
- MF:C35H38Cl2N8O4
- Structure:
- Chemical Name:6,7,8,9-Tetrahydro Carvedilol
- CAS:1246820-73-4
- MF:C24H30N2O4
- Structure:
- Chemical Name:Cefdinir Lactone
- CAS:946573-41-7
- MF:C14H13N5O5S2
- Structure:
- Chemical Name:Ozagrel methylester
- CAS:866157-50-8
- MF:C13H12N2O2
- Structure:
- Chemical Name:2-Propanol, 1-[2-(2-methoxyethyl)phenoxy]-3-[(1-methylethyl)amino]-
- CAS:163685-38-9
- MF:C15H25NO3
- Structure:
- Chemical Name:2-aMino-3-Methyl-3-sulfino-4-(1H-1,2,3-triazol-1-yl)butyric acid
- CAS:118175-11-4
- MF:C7H12N4O4S
- Structure:
- Chemical Name:1,4,8,11-Tetraazacy clotetradecance, 1,4,8-tris[(4 Methylphenyl)sufonyl]-
- CAS:104395-69-9
- MF:C31H42N4O6S3
- Structure:
- Chemical Name:(1S)-N-(3S)-1-Azabicyclo[2.2.2]oct-3-yl-1,2,3,4-tetrahydro-1-naphthalenecarboxaMide
- CAS:177793-79-2
- MF:C18H24N2O
- Structure:
- Chemical Name:(E)-Ceftriaxone
- CAS:92143-31-2
- MF:C18H18N8O7S3
- Structure:
- Chemical Name:(Z)-Cinnarizine
- CAS:750512-44-8
- MF:C26H28N2
- Structure:
- Chemical Name:N-Methyl Iso Desloratadine
- CAS:183198-48-3
- MF:C20H21ClN2
- Structure:
- Chemical Name:Tartaric Acid Isopropyl Ester
- CAS:116601-09-3
- MF:C7H12O6
- Structure:
- Chemical Name:Vardenafil Acetyl Analogue
- CAS:1261351-28-3
- MF:C25H34N6O3
- Structure:
- Chemical Name:N1-Methylbenzene-1,2,4-triaMine
- CAS:60651-29-8
- MF:C7H11N3
- Chemical Name:RocuroniuMbroMide iMpurity H
- CAS:
- MF:
- Structure:
- Chemical Name:1-[(2'-carbaMoylbiphenyl-4-yl) Methyl]-2-ethoxybenziMidazole-7-carboxylic acid
- CAS:1696392-11-6
- MF:C24H21N3O4
- Structure:
- Chemical Name:5-chloro-1-(3-diMethylaMinopropyl)-1-(4-fluorophenyl)-phthalan
- CAS:64169-45-5
- MF:C19H21ClFNO
- Chemical Name:dextroMethorphanone
- CAS:
- MF:
- Structure:
- Chemical Name:oxiracetaM related substance ISF3886
- CAS:120428-80-0
- MF:C8H13N3O4
- Structure:
- Chemical Name:Carvedilol IMpurity D
- CAS:1391052-16-6
- MF:C39H39N3O6
- Structure:
- Chemical Name:DL-2-(4-Carboxyphenyl)propionic Acid
- CAS:67381-50-4
- MF:C10H10O4
- Structure:
- Chemical Name:Betamethasone 17-Propionate 21-Mesylate
- CAS:15423-80-0
- MF:C26H35FO8S
- Structure:
- Chemical Name:ClarithroMycin EP IMpurity F
- CAS:128940-83-0
- MF:C39H71NO13
- Structure:
- Chemical Name:3(R)-Hydroperoxy Simvastatin
- CAS:1092716-42-1
- MF:C25H38O7
- Structure:
- Chemical Name:Albendazole EP IMpurity F
- CAS:80983-45-5
- MF:C10H11N3O2S
- Structure:
- Chemical Name:10-Dehydrobaccatin V
- CAS:151636-94-1
- MF:C29H34O10
- Structure:
- Chemical Name:DoxylaMine EP IMpurity A
- CAS:873407-01-3
- MF:C17H22N2O
- Structure:
- Chemical Name:((1R,3R,E)-5-((E)-2-((1R,3aS,7aR)-1-((2R,5R,E)-5,6-diMethylhept-3-en-2-yl)-7a-Methyldihydro-1H-inden-4(2H,5H,6H,7H,7aH)-ylidene)ethylidene)-4-Methylenecyclohexane-1,3-diyl)bis(oxy)bis(tert-butyldiMethylsilane)
- CAS:115540-28-8
- MF:C40H72O2Si2
- Structure:
- Chemical Name:Clopidogrel EP IMpurity D
- CAS:1421283-60-4
- MF:C24H21Cl2NO4S
- Structure:
- Chemical Name:Loratadine IMpurity E
- CAS:
- MF:C22H23ClN2O2
- Structure:
- Chemical Name:Metoprolol IMpurity E
- CAS:
- MF:C15H25NO3
- Chemical Name:IMp. A (EP): 4-Methyl-6-(1-Methyl-1H-benziMidazol-2-yl)-2-propyl-1H-benziMidazole
- CAS:
- MF:
- Structure:
- Chemical Name:(2S,4S)-4-[4-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)-1-piperazinyl]-2-(3-thiazolidinylcarbonyl)-1-pyrrolidinecarboxylic acid tert-butyl ester
- CAS:401566-80-1
- MF:C27H38N6O3S
- Structure:
- Chemical Name:4-Methoxy-5-(3-Morpholinopropoxy)-2-nitrobenzaMide
- CAS:861453-16-9
- MF:C15H21N3O6
- Structure:
- Chemical Name:5-chloro-3-sulfo-2-Thiophenecarboxylic acid
- CAS:187746-94-7
- MF:C5H3ClO5S2
- Structure:
- Chemical Name:2,2'-(4,4'-(3,3'-(isopropylazanediyl)bis(2-hydroxypropane-3,1-diyl))bis(oxy)bis(4,1-phenylene))diacetaMide
- CAS:87619-83-8
- MF:C25H35N3O6
- Structure:
- Chemical Name:3,3'-diMethyl-1,1'-diphenyl-1H,1'H-4,4'-bipyrazole-5,5'-diol
- CAS:177415-76-8
- MF:C20H18N4O2
- Structure:
- Chemical Name:5-(2-cyclopropyl-1-(3-fluorophenyl)-2-oxoethyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl acetate
- CAS:1391194-39-0
- MF:C20H20FNO3S
- Structure:
- Chemical Name:(S)-N-(1-(3-MethylbutanaMido)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxaMide
- CAS:862894-96-0
- MF:C19H22N4O3
- Structure:
- Chemical Name:Ticagrelor iMpurity
- CAS:1882095-51-3
- MF:C27H45N5O8S
- Structure:
- Chemical Name:cefaclor iMpurity G
- CAS:67308-21-8
- MF:C16H17N3O4S
- Chemical Name:Rupatadine iMpurity E
- CAS:
- MF:
- Structure:
- Chemical Name:Tadalafil iMpurity D
- CAS:951661-81-7
- MF:C22H20ClN3O4