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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:Oxacillin Sodium Impurity D(EP)
- CAS:1642559-63-4
- MF:C18H21N3O4S
- Chemical Name:Oxacillin Sodium Impurity J(EP)
- CAS:
- MF:
- Chemical Name:Spectinomycin Impurity A
- CAS:
- MF:
- Structure:
- Chemical Name:Eriodictyol-6-glucoside
- CAS:118040-45-2
- MF:C21H22O11
- Structure:
- Chemical Name:Rubrofusarin triglucoside
- CAS:245724-07-6
- MF:C33H42O20
- Structure:
- Chemical Name:Gabapentin EP Impurity G
- CAS:1500558-49-5
- MF:C10H19NO2
- Structure:
- Chemical Name:2-butyrylbenzoic acid
- CAS:19666-03-6
- MF:C11H12O3
- Chemical Name:Cefminox sodium impurities D
- CAS:
- MF:
- Structure:
- Chemical Name:(R)-5-chloro-N-(4-(3-oxomorpholino)phenyl)-N- ((2-oxooxazolidin-5-yl)methyl)thiophene-2-carboxamide
- CAS:1879903-65-7
- MF:C19H18ClN3O5S
- Structure:
- Chemical Name:Cefmetazole impurity
- CAS:56796-19-1
- MF:C28H27N7O5S3
- Structure:
- Chemical Name:3-ethylisobenzofuran-1(3H)-one
- CAS:17475-41-1
- MF:C10H10O2
- Structure:
- Chemical Name:Ivabradine Impurity 21 HCl
- CAS:304465-03-0
- MF:C26H34N2O5
- Chemical Name:Moxifloxacin EP Impurity C HCl
- CAS:
- MF:
- Structure:
- Chemical Name:Moxifloxacin Impurity 23
- CAS:855661-74-4
- MF:C21H24FN3O4
- Structure:
- Chemical Name:Solifenacin Related Compound 18
- CAS:1225338-27-1
- MF:C23H26N2O2
- Structure:
- Chemical Name:N-(2-hydroxy-3-(4-((2-isopropoxyethoxy)methyl)phenoxy)propyl) -N-isopropylformamide
- CAS:1447715-45-8
- MF:C19H31NO5
- Structure:
- Chemical Name:Tofacitinib Related Compound
- CAS:1206824-85-2
- MF:C10H18ClN3O
- Structure:
- Chemical Name:Fluvastatin EP impurity A -G
- CAS:93957-58-5
- MF:C24H26FNO4
- Structure:
- Chemical Name:DESVENLAFAXINE SUCCINATE
- CAS:448904-47-0
- MF:C20H31NO6
- Structure:
- Chemical Name:Desloratadine IMpurity B
- CAS:117796-50-6
- MF:C19H19BrN2
- Chemical Name:Itraconazole IMpurity B
- CAS:
- MF:
- Structure:
- Chemical Name:Benzene, 1-(3-chloropropyl)-3-(trifluoroMethyl)-
- CAS:82258-76-2
- MF:C10H10ClF3
- Structure:
- Chemical Name:N-Methyl-N-((3S,4S)-4-Methylpiperidin-3-yl)-7H-pyrrolo[2,3-d]pyriMidin-4-aMine
- CAS:1260614-73-0
- MF:C13H19N5
- Structure:
- Chemical Name:2-(5-oxo-5H-chroMeno[2,3-b]pyridin-7-yl)propanoic acid
- CAS:52549-19-6
- MF:C15H11NO4
- Structure:
- Chemical Name:1H-BenziMidazole, 2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]Methyl]sulfinyl]-1-(2,2,2-trifluoroethyl)-
- CAS:1187926-84-6
- MF:C18H15F6N3O2S
- Structure:
- Chemical Name:4,5-dihydro-a-(hydroxyMethyl)-a,3-diMethyl-5-oxo-1-phenyl-1H-Pyrazole-4-Methanesulfonic acid
- CAS:1242471-40-4
- MF:C13H16N2O5S
- Structure:
- Chemical Name:16α,17-[(1RS)-Butylidenebis(oxy)]-11β-hydroxy-17-(hydroxyMethyl)-D-hoMoandrosta-1,4-diene-3,17a-dione (Mixture of DiastereoMers)
- CAS:1040085-99-1
- MF:C25H34O6
- Structure:
- Chemical Name:2-BroMo-1-cyclopropyl-2-(3-fluorophenyl)ethanone
- CAS:1359829-72-3
- MF:C11H10BrFO
- Structure:
- Chemical Name:N-((4-(5-Methyl-3-phenylisoxazol-4-yl)phenyl)sulfonyl)acetaMide
- CAS:198471-06-6
- MF:C18H16N2O4S
- Structure:
- Chemical Name:N-((S)-1-(((S)-1-Hydroxy-3-Methylbutyl)aMino)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxaMide
- CAS:289472-81-7
- MF:C19H24N4O3
- Structure:
- Chemical Name:(Z)-N-(2-nitrovinyl)acetaMide
- CAS:1238305-24-2
- MF:C4H6N2O3
- Structure:
- Chemical Name:Azilsartan iMpurity
- CAS:1604812-35-2
- MF:C35H28N4O11
- Structure:
- Chemical Name:Azilsartan iMpurity N
- CAS:2244031-86-3
- MF:C22H17N3O4
- Chemical Name:cefoxitin iMpurity B
- CAS:
- MF:
- Chemical Name:pidotiMod iMpurity A
- CAS:
- MF:
- Structure:
- Chemical Name:Rivaroxaban iMpurity A
- CAS:931204-39-6
- MF:C19H20ClN3O6S
- Structure:
- Chemical Name:R-7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 9-fluoro-2,3-dihydro-3-Methyl-10-(4-Methyl-1-piperazinyl)-7-oxo- Methyl ester
- CAS:1268719-66-9
- MF:C19H22FN3O4
- Structure:
- Chemical Name:Ticagrelor Sulfone
- CAS:274693-39-9
- MF:C23H28F2N6O6S
- Structure:
- Chemical Name:2-(((3aR,4S,6R,6aS)-6-(7-aMino-5-(propylthio)-3H-[1,2,3]triazolo[4,5-d]pyriMidin-3-yl)-2,2-diMethyltetrahydro-3aH-cyclopenta[d][1,3]dioxol-4-yl)oxy)ethanol
- CAS:1858267-99-8
- MF:C17H26N6O4S
- Structure:
- Chemical Name:(2R,3R)-2-[(1R)-1-[3,5-Bis(trifluoroMethyl)phenyl]ethoxy]-3-(4-fluorophenyl)Morpholine
- CAS:380499-06-9
- MF:C20H18F7NO2
- Structure:
- Chemical Name:Adefovir iMpurity
- CAS:1875153-79-9
- MF:C15H24N5O6P
- Chemical Name:Anastrozole iMpurity
- CAS:
- MF:
- Chemical Name:Anastrozole iMpurity
- CAS:
- MF:
- Chemical Name:LevosiMendan iMpurity
- CAS:139052-02-1
- MF:
- Structure:
- Chemical Name:(Z)-3-((2'-(N'-hydroxycarbaMiMidoyl)biphenyl-4-yl)Methyl)-2-oxo-2,3-dihydro-1H-benzo[d]iMidazole-4-carboxylic acid
- CAS:1174733-90-4
- MF:C10H14N4O6
- Structure:
- Chemical Name:rac Cinacalcet HCl
- CAS:1025064-33-8
- MF:C22H22F3N
- Chemical Name:Acyclovir IMpurity I
- CAS:
- MF:
- Chemical Name:AtracuriuM Besylate IMpurity D Iodide (Mixture of DiastereoMers)
- CAS:
- MF:
- Chemical Name:AzithroMycin IMpurity D
- CAS:
- MF:
- Chemical Name:AztreonaM IMpurity E
- CAS:
- MF:
- Structure:
- Chemical Name:PWKRNMKZGWGSDV-UHFFFAOYSA-N
- CAS:1422960-88-0
- MF:C33H34ClN4+
- Structure:
- Chemical Name:sodium:(2S)-2-[12-ethyl-8-(hydroxymethyl)-9-oxo-2-(4-piperidin-1-ylpiperidine-1-carbonyl)oxy-11H-indolizino[1,2-b]quinolin-7-yl]-2-hydroxybutanoate
- CAS:1329502-92-2
- MF:C33H41N4NaO7
- Structure:
- Chemical Name:QFJAHHNMKTWTGZ-DZAPPIOQSA-N
- CAS:2045402-27-3
- MF:C35H36ClNO4S
- Structure:
- Chemical Name:N-(3R)-1-Azabicyclo[2.2.2]oct-3-yl-5,6,7,8-tetrahydro-1-naphthalenecarboxamide
- CAS:1374226-74-0
- MF:C18H24N2O
- Chemical Name:Dasatinib IMpurity 1
- CAS:
- MF:
- Chemical Name:Deferasirox IMpurity 1
- CAS:
- MF:
- Structure:
- Chemical Name:Doxycycline Hyclate IMpurity F
- CAS:122861-53-4
- MF:C23H25NO8
- Structure:
- Chemical Name:IpratropiuM BroMide IMpurity E
- CAS:183626-76-8
- MF:C19H27NO3
- Structure:
- Chemical Name:Minoxidil IMpurity D
- CAS:75105-16-7
- MF:C11H12N4O4S
- Chemical Name:Ribavirin IMp. D (EP)
- CAS:
- MF:
- Structure:
- Chemical Name:SalMeterol IMpurity C
- CAS:
- MF:C25H37NO4
- Chemical Name:SulbactaM IMpurity F
- CAS:
- MF:
- Structure:
- Chemical Name:N-(4-(2-Methyl-1,4,5,6-tetrahydrobenzo[b]iMidazo[4,5-d]azepine-1-carbonyl)phenyl)-[1,1'-biphenyl]-2-carboxaMide
- CAS:
- MF:C32H26N4O2
- Structure:
- Chemical Name:1-(4-Methoxyphenyl)-6-(4-(2-Methyl-6-oxopiperidin-1-yl)phenyl)-7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxaMide
- CAS:2098457-92-0
- MF:C26H27N5O4
- Structure:
- Chemical Name:1-(4-Methoxyphenyl)-6-(4-(2-Methyl-6-oxopiperidin-1-yl)phenyl)-7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxaMide
- CAS:2098457-92-0
- MF:C26H27N5O4
- Structure:
- Chemical Name:1-(chloromethyl)-2-trifluoromethyl-4-methylbenzene
- CAS:1261456-37-4
- MF:C9H8ClF3
- Structure:
- Chemical Name:Epalrestat iMpurity
- CAS:109801-00-5
- MF:C13H18O
- Structure:
- Chemical Name:5-Oxo Pitavastatin
- CAS:222306-15-2
- MF:C25H22FNO4
- Structure:
- Chemical Name:(3R)-2,3-Dihydro-3-(2-propyn-1-ylaMino)-1H-inden-1-one
- CAS:1312077-05-6
- MF:C12H11NO
- Structure:
- Chemical Name:1-[[2'-(AMinoiMinoMethyl)[1,1'-biphenyl]-4-yl]Methyl]-2-ethoxy-1H-benziMidazole-7-carboxylic Acid
- CAS:1442400-65-8
- MF:C24H22N4O3
- Structure:
- Chemical Name:2-Hydroxy Cephalexin
- CAS:215172-75-1
- MF:C16H17N3O5S
- Structure:
- Chemical Name:3-(9H-Carbazol-4-yloxy)-1,2-propanediol
- CAS:123119-89-1
- MF:C15H15NO3
- Structure:
- Chemical Name:4-(2-Methylpropoxy)-1,3-benzenedicarbothioaMide
- CAS:1330632-46-6
- MF:C12H16N2OS2
- Structure:
- Chemical Name:8-(2,3-Dichlorophenyl)-8-aza-5-azoniaspiro[4.5]decane BroMide
- CAS:795313-24-5
- MF:C14H19BrCl2N2
- Structure:
- Chemical Name:8-(2,3-Dichlorophenyl)-8-aza-5-azoniaspiro[4.5]decane BroMide
- CAS:795313-24-5
- MF:C14H19BrCl2N2
- Structure:
- Chemical Name:9-MethoxyMethyl Guanine
- CAS:1202645-50-8
- MF:C7H9N5O2
- Structure:
- Chemical Name:ClindaMycin 3-PalMitate
- CAS:68225-59-2
- MF:C34H63ClN2O6S
- Structure:
- Chemical Name:EltroMbopag Methyl Ester
- CAS:1246929-01-0
- MF:C26H24N4O4
- Structure:
- Chemical Name:ErythroMycin A 6,9-IMino Ether
- CAS:99290-97-8
- MF:C37H66N2O12
- Structure:
- Chemical Name:α,α'-Bis[(2-Methoxyphenoxy)Methyl]-1,4-piperazinediethanol
- CAS:333749-57-8
- MF:C24H34N2O6
- Structure:
- Chemical Name:Ticagrelor IMpurity E
- CAS:1402150-34-8
- MF:C26H30F2N6O5S
- Structure:
- Chemical Name:Benzenebutanoicacid,b-[[(1,1-diMethylethoxy)carbonyl]aMino]-2,4,5-trifluoro-,Methylester,(bR)-
- CAS:881995-73-9
- MF:C16H20F3NO4
- Structure:
- Chemical Name:Bosutinib Impurity 1
- CAS:1460227-29-5
- MF:C18H13Cl2N3O3
- Structure:
- Chemical Name:tert-butyl 4-cyclohexylpiperazine-1-carboxylate
- CAS:1224935-95-8
- MF:C15H28N2O2
- Structure:
- Chemical Name:2-Debenzoyl-2-pentenoyl Docetaxel
- CAS:1412898-66-8
- MF:C41H55NO14
- Chemical Name:Afatinib IMpurity D
- CAS:
- MF:
- Chemical Name:Afatinib IMpurity D
- CAS:
- MF:
- Structure:
- Chemical Name:Avanafil iMpurity 1
- CAS:372117-54-9
- MF:C18H22ClN5O3
- Structure:
- Chemical Name:Bisoprolol EP IMpurity B HeMifuMarate (Bisoprolol n-Propyl Derivative HeMifuMarate)
- CAS:1447715-44-7
- MF:C18H31NO4
- Structure:
- Chemical Name:Dabigatran iMpurity F
- CAS:1642853-67-5
- MF:C19H20N4O4
- Structure:
- Chemical Name:Decitabine iMpurity 4
- CAS:863396-35-4
- MF:C6H12O4
- Structure:
- Chemical Name:Gliclazide iMpurity D
- CAS:1136426-19-1
- MF:C15H20N2O3S
- Structure:
- Chemical Name:Losartan IMpurity C (Isolosartan)
- CAS:114799-13-2
- MF:C22H23ClN6O
- Structure:
- Chemical Name:Posaconazole DiastereoisoMer interMediate 2
- CAS:166583-12-6
- MF:C21H21F2N3O4S
- Structure:
- Chemical Name:Quetiapine IMpurity P (11-(4-Ethylpiperazin-1-yl)dibenzo[b,f][1,4]thiazepine fuMarate))
- CAS:1011758-03-4
- MF:C19H21N3S
- Structure:
- Chemical Name:TaMsulosin IMpurity B
- CAS:
- MF:C20H28N2O5S
- Chemical Name:Ticagrelor iMpurity N
- CAS:
- MF:
- Structure:
- Chemical Name:Tirofiban IMpurity (4,4'-Dipyridyl-1,5-Pentane)
- CAS:25382-33-6
- MF:C15H18N2
- Structure:
- Chemical Name:3-Quinolinecarbonitrile,4-chloro-6-Methoxy-7-[3-(4-Methyl-1-piperazinyl)propoxy]-
- CAS:492444-39-0
- MF:C19H23ClN4O2
- Structure:
- Chemical Name:Vardenafil Oxopiperazine (IMpurity)
- CAS:448184-58-5
- MF:C21H26N6O5S