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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Isavuconazole Impurity 49
- CAS:
- MF:
- Chemical Name:Avatrombopag Impurity 51
- CAS:
- MF:
- Chemical Name:Tafluprost Impurity 18
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 161
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 155
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 146
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 126
- CAS:
- MF:
- Structure:
- Chemical Name:(1R,3r,5S)-8-methyl-8-azabicyclo[3.2.1]octan-3-yl 2-hydroxy-2,2-di(thiophen -2-yl)acetate
- CAS:29461-90-3
- MF:C18H21NO3S2
- Chemical Name:Digoxin Impurity 2
- CAS:
- MF:
- Structure:
- Chemical Name:DUTP, 100MM SOLUTION
- CAS:94736-09-1
- MF:C9H16N2NaO14P3
- Chemical Name:Oxacillin USP Impurity D
- CAS:
- MF:
- Chemical Name:Oxacillin sodium EP impurity B
- CAS:
- MF:
- Chemical Name:Doxylamine Impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:Phenoxymethylpenicillin Potassium EP Impurity F
- CAS:2714805-53-3
- MF:C15H20N2O4S
- Chemical Name:Methylprednisolone EP Impurity D1
- CAS:
- MF:
- Chemical Name:Nirmatrelvir Impurity 13
- CAS:
- MF:
- Structure:
- Chemical Name:γ-Cyclodextrin, 6A,6B,6C,6D,6E,6F,6G-heptabromo-6A,6B,6C,6D,6E,6F,6G-heptadeoxy-
- CAS:2458187-21-6
- MF:C48H73Br7O33
- Structure:
- Chemical Name:2-Pyridinecarboxamide, 4-hydroxy-N-methyl- (9CI)
- CAS:611226-36-9
- MF:C7H8N2O2
- Structure:
- Chemical Name:2-Pyridinemethanol, 4-hydroxy-3,5-dimethyl- (9CI)
- CAS:727375-13-5
- MF:C8H11NO2
- Chemical Name:Bumetanide Impurity 22
- CAS:
- MF:
- Chemical Name:Rocuronium Bromide Impurity 32 、33
- CAS:
- MF:
- Chemical Name:Flucloxacillin Sodium Impurity X
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 98
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 29
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 24
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 7
- CAS:1002359-81-0
- MF:
- Chemical Name:Paxlovid Impurity 17
- CAS:
- MF:
- Chemical Name:Related impurities of fluoxetine sodium 19
- CAS:
- MF:
- Chemical Name:Fondaparinux sodium impurity 16
- CAS:
- MF:
- Chemical Name:Fondaparinux Sodium Impurity 11
- CAS:
- MF:
- Chemical Name:Oxacillin Impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:AZOBENZENE-3-CARBOXYLICACID
- CAS:14474-22-7
- MF:C13H10N2O2
- Chemical Name:Bosutinib Impurity 40
- CAS:
- MF:
- Chemical Name:Ticagrelor Impurity J&K
- CAS:
- MF:
- Chemical Name:Olodaterol Impurity 24
- CAS:
- MF:
- Chemical Name:Miglitol Isomer ImpurityB
- CAS:
- MF:
- Chemical Name:43,50-Dicarboxy-cyanoco balamin
- CAS:
- MF:
- Structure:
- Chemical Name:(1R,4S) Sertraline Hydrochloride
- CAS:79896-32-5
- MF:C17H18Cl3N
- Structure:
- Chemical Name:4-Desmethoxy-4-chloro Omeprazole Sulfide
- CAS:220757-74-4
- MF:C16H16ClN3OS
- Structure:
- Chemical Name:N-[[7-(Aminosulfonyl)-6-chloro-2,3-dihydro-1,1-dioxo-4H-1,2,4-benzothiadiazin-4-yl]methyl]-6-chloro-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-Dioxode
- CAS:402824-96-8
- MF:C15H16Cl2N6O8S4
- Structure:
- Chemical Name:N-Desmethyl Tamoxifen Hydrochloride
- CAS:15917-65-4
- MF:C25H27NO.ClH
- Structure:
- Chemical Name:(3S,5S)-Atorvastatin sodium salt
- CAS:501121-34-2
- MF:C33H35FN2O5
- Structure:
- Chemical Name:2,6-Di(tert-butyl)-4-hydroxy-4-methyl-2,5-cyclohexadien-1-one
- CAS:10396-80-2
- MF:C15H24O2
- Structure:
- Chemical Name:2(1H)-Pyrazinone, 3-phenyl-
- CAS:2882-18-0
- MF:C10H8N2O
- Structure:
- Chemical Name:1H-Thieno[3,4-d]imidazole-4-valeric acid, hexahydro-2-oxo-, stereoisomer (8CI)
- CAS:21788-37-4
- MF:C10H16N2O3S
- Structure:
- Chemical Name:pazufloxacin
- CAS:166665-94-7
- MF:C16H15FN2O4
- Structure:
- Chemical Name:MK 485
- CAS:28875-92-5
- MF:C10H14N2O4
- Structure:
- Chemical Name:1,3-Dioxane-4-aceticacid,6-(cyanomethyl)-2,2-dimethyl-,(4R,6R)-(9CI)
- CAS:807312-27-2
- MF:C10H15NO4
- Structure:
- Chemical Name:bromobenzarone
- CAS:94729-09-6
- MF:C17H13BrO3
- Structure:
- Chemical Name:digoxigenin-bis(digitoxoside)
- CAS:5297-05-2
- MF:C35H54O11
- Structure:
- Chemical Name:17 alpha-cyanomethyl-19-nortestosterone
- CAS:67473-36-3
- MF:C20H27NO2
- Structure:
- Chemical Name:(1R,3S)-1-(1,3-Benzodioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic Acid Methyl Ester
- CAS:171596-44-4
- MF:C20H18N2O4
- Structure:
- Chemical Name:Amlodipine-d4
- CAS:1185246-14-3
- MF:C20H25ClN2O5
- Chemical Name:Cefathiamidine Impurity D
- CAS:
- MF:
- Chemical Name:Cefazolin Impurity C (EP)
- CAS:
- MF:
- Chemical Name:Cefdinir Impurity H (CP)
- CAS:
- MF:
- Chemical Name:Cefdinir Impurity S(CP)
- CAS:
- MF:
- Structure:
- Chemical Name:ICOFQCJKJOISKD-HSZRJFAPSA-N
- CAS:1435768-96-9
- MF:C26H35NO3
- Structure:
- Chemical Name:Moxidectin
- CAS:119718-45-5
- MF:C37H53NO8
- Structure:
- Chemical Name:GDZISNMJFAJFMR-BEQCQUFHSA-M
- CAS:2024603-92-5
- MF:C58H74N2O15S
- Structure:
- Chemical Name:GJXNGCFWGJQETE-UHFFFAOYSA-N
- CAS:1796891-27-4
- MF:C29H34N6O4
- Structure:
- Chemical Name:ethyl N-[(2,5-dichlorophenyl)carbonyl]glycinate
- CAS:328283-61-0
- MF:C11H11Cl2NO3
- Structure:
- Chemical Name:Irbesartan Impurity 4
- CAS:945540-26-1
- MF:C21H20N6O
- Structure:
- Chemical Name:BAUCJPGULMYPTE-UHFFFAOYSA-N
- CAS:2097683-67-3
- MF:C24H29NO4
- Structure:
- Chemical Name:Entecavir Impurity 6
- CAS:1354695-82-1
- MF:C26H27N5O3
- Structure:
- Chemical Name:Bis(L-Valine) Ester Ganciclovir TFA Salt
- CAS:130914-71-5
- MF:C19H31N7O6
- Structure:
- Chemical Name:6-Chloro-6-defluoro Ciprofloxacin
- CAS:93106-58-2
- MF:C17H18ClN3O3
- Structure:
- Chemical Name:5-[(4-amino-2-carboxyphenyl)amino]-2-hydroxybenzoic acid
- CAS:1797983-23-3
- MF:C14H12N2O5
- Structure:
- Chemical Name:4-[1-methoxy-2-(methylamino)ethyl]benzene-1,2-diol:hydrochloride
- CAS:74571-90-7
- MF:C10H15NO3.ClH
- Structure:
- Chemical Name:(1-methylpiperidin-4-yl)(pyridin-2-yl)methanone
- CAS:517875-04-6
- MF:C12H16N2O
- Structure:
- Chemical Name:2-cyano-1,3-bis(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)guanidine
- CAS:55272-86-1
- MF:C16H24N8S2
- Structure:
- Chemical Name:(1R,3R)-1-(benzo[d][1,3]dioxol-5-yl)-2-(dimethylglycyl)-2,3,4,9-tetrahydro-1H-pyrido [3,4-b]indole-3-carboxylate methyl
- CAS:2169996-11-4
- MF:C24H25N3O5
- Chemical Name:Fulvestrant impurity G
- CAS:
- MF:
- Structure:
- Chemical Name:4-tert-Butyl-N-(6-chloro-5-(2-methoxyphenoxy)-2,2'-bipyrimidin-4-yl)benzenesulfonamide
- CAS:150727-06-3
- MF:C25H24ClN5O4S
- Chemical Name:GLICLAZIDE IMPURITY B
- CAS:
- MF:
- Structure:
- Chemical Name:ISOPROMETHAZINE HYDROCHLORIDE
- CAS:5568-90-1
- MF:C17H21ClN2S
- Structure:
- Chemical Name:Benzenepropanoic acid, 4-(2-oxiranylmethoxy)-
- CAS:2167848-51-1
- MF:C12H14O4
- Structure:
- Chemical Name:(S)-(+)-N,N-Dimethyl-3-(1-naphthalenyloxy)-3-(2-thienyl)propanamine
- CAS:132335-46-7
- MF:C19H21NOS
- Structure:
- Chemical Name:D-Tryptophan, N-(trifluoroacetyl)- (9CI)
- CAS:22220-03-7
- MF:C13H11F3N2O3
- Chemical Name:1H-benzo[d][1,2,3]triazol-1-yl 2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoate
- CAS:
- MF:
- Structure:
- Chemical Name:1-Ethyl-3(3-dimethylamino)urea
- CAS:32897-26-0
- MF:C8H19N3O
- Chemical Name:Brivaracetam Impurity 29
- CAS:
- MF:
- Structure:
- Chemical Name:L-erythro-Hexuronic acid, 3,5-dideoxy-, 1,1-dimethylethyl ester
- CAS:1501982-84-8
- MF:C10H18O5
- Chemical Name:(Gly8-OH)-Carbetocin (Impurity B)
- CAS:
- MF:
- Chemical Name:D-Asn4-Carbetocin (Impurity F)
- CAS:
- MF:
- Structure:
- Chemical Name:Benzoic acid, 2-(1',6'-dihydro-6'-oxo-1'-phenyl[2,3'-bipyridin]-5'-yl)-, methyl ester
- CAS:543699-60-1
- MF:C24H18N2O3
- Structure:
- Chemical Name:1,2-bis(2-methoxyphenoxy)ethane
- CAS:553-45-7
- MF:C16H18O4
- Structure:
- Chemical Name:Dispiro[11H-benzo[5,6]cyclohepta[1,2-b]pyridine-11,2'-oxirane-3',4''-piperidine]-1''-carboxylic acid, 8-chloro-5,6-dihydro-, ethyl ester, 1-oxide
- CAS:1432057-93-6
- MF:C22H23ClN2O4
- Chemical Name:Oseltamivir Impurity 109
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 81
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 71
- CAS:
- MF:
- Structure:
- Chemical Name:1-hydrazino-3-(methylthio)propan-2-ol
- CAS:14359-97-8
- MF:C4H12N2OS
- Structure:
- Chemical Name:Benzenemethanol, 4-(3-chloro-2-hydroxypropoxy)-
- CAS:293302-44-0
- MF:C10H13ClO3
- Structure:
- Chemical Name:desmethylazelastine
- CAS:47491-38-3
- MF:C21H22ClN3O