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Pharmaceutical Impurity Reference Standards
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- Chemical Name:
- Vildagliptin Impurity 9
- Structure:
- Chemical Name:
- Cefathiamidine Impurity 5
- CAS:
- 40818-86-8
- MF:
- C10H11ClN2O4S
- Structure:
- Chemical Name:
- methyl 4-hydroxy-3,5-diisopropylbenzoic acid
- MF:
- C14H20O3
- Chemical Name:
- Apixaban Impurity J
- Chemical Name:
- Avibactam Impurity C
- Chemical Name:
- Brexpiprazole Impurity M
- Chemical Name:
- Cefaclor Impurity 5
- Chemical Name:
- Linagliptin Impurity 39
- Chemical Name:
- Peramivir Impurity 5
- Chemical Name:
- Pidotimod Impurity O
- Chemical Name:
- Pramipexole EP Impurity C
- Structure:
- Chemical Name:
- Imiquimod Impurity 5
- CAS:
- 853793-02-9
- MF:
- C15H18N4
- Structure:
- Chemical Name:
- 9-(1,3-diacetate-2-propoxymethyl)guanine
- CAS:
- 86357-19-9
- MF:
- C13H17N5O6
- Structure:
- Chemical Name:
- Cefadroxil Impurity 6
- CAS:
- 2378158-45-1
- MF:
- C32H32N6O9S2
- Structure:
- Chemical Name:
- Loratadine Impurity 9
- CAS:
- 125743-81-9
- MF:
- C22H23ClN2O2
- Chemical Name:
- Metronidazole Impurity 1
- Structure:
- Chemical Name:
- Parecoxib Impurity 16
- CAS:
- 2235371-89-6
- MF:
- C19H18N2O4S
- Chemical Name:
- Rosuvastatin Impurity 54
- Structure:
- Chemical Name:
- Vonoprazan Fumarate Impurity 6
- CAS:
- 2250243-23-1
- MF:
- C33H27F2N5O4S2
- Structure:
- Chemical Name:
- 3-((3aS,4R,6S,6aR)-6-(2-hydroxyethoxy)-2,2-dimethyltetrahydro- 4H-cyclopenta[d][1,3]dioxol-4-yl)-5-(propylthio)-3H-[1,2,3] triazolo[4,5-d]pyrimidin-7-ol
- CAS:
- 1456538-51-4
- MF:
- C17H25N5O5S
- Chemical Name:
- Esomeprazole Impurity 24
- Chemical Name:
- Prasugrel Impurity 15
- Structure:
- Chemical Name:
- Pregabalin Impurity 18
- CAS:
- 1621171-19-4
- MF:
- C9H15NO2
- Chemical Name:
- Pregabalin Impurity 23
- Structure:
- Chemical Name:
- Butylphthalide impurity
- CAS:
- 16692-58-3
- MF:
- C12H14O2
- Structure:
- Chemical Name:
- ethyl 2,5-dihydroxybenzenesulfonate
- MF:
- C8H10O5S
- Structure:
- Chemical Name:
- 5-ALLYLIDENE-10,11-DIHYDRO-5H-DIBENZO[A,D]CYCLOHEPTENE
- CAS:
- 24755-73-5
- MF:
- C18H16
- Chemical Name:
- Nintedanib Impurity 27
- Structure:
- Chemical Name:
- ethyl 2-(2-formyl-3-hydroxyphenyl)-4-methylthiazole-5- carboxylate
- MF:
- C14H13NO4S
- Structure:
- Chemical Name:
- LUMAT-004
- CAS:
- 313544-31-9
- MF:
- C16H17N3O3
- Structure:
- Chemical Name:
- Varenicline Impurity 3
- CAS:
- 1333145-89-3
- MF:
- C14H15N3
- Chemical Name:
- Econazole Related Compound C (15 mg) (1-(4-Chlorobenzyl)-3-[(2RS)-2-[(4-chlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]imidazolium chloride)
- CAS:
- 57265-33-5
- Structure:
- Chemical Name:
- Amlodipine Impurity 22 (Z-Isomer)
- MF:
- C26H31ClN2O8S
- Structure:
- Chemical Name:
- Amlodipine Impurity 28
- CAS:
- 79781-21-8
- MF:
- C18H20ClNO5
- Chemical Name:
- Axitinib Impurity 16
- Chemical Name:
- Axitinib Impurity 22
- Structure:
- Chemical Name:
- Imidazo[5,1-f][1,2,4]triazin-4(1H)-one, 2-[2-ethoxy-5-[(4-ethyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-5-methyl-7-propyl-
- CAS:
- 448184-48-3
- MF:
- C23H32N6O5S
- Structure:
- Chemical Name:
- Dolutegravir 4-Desfluoro Impurity
- CAS:
- 1863916-87-3
- MF:
- C20H20FN3O5
- Structure:
- Chemical Name:
- Tetrabenazine Dehydro Impurity
- CAS:
- 100322-43-8
- MF:
- C19H25NO3
- Structure:
- Chemical Name:
- Cefotiam Impurity 22
- CAS:
- 1628441-07-5
- MF:
- C13H14N4O5S2
- Structure:
- Chemical Name:
- Dezocine Impurity 2
- CAS:
- 100667-17-2
- MF:
- C16H21NO
- Structure:
- Chemical Name:
- loteprednol Impurity 7
- CAS:
- 82034-20-6
- MF:
- C24H33ClO7
- Structure:
- Chemical Name:
- Sitagliptin Impurity 28
- CAS:
- 898543-70-9
- MF:
- C32H25F12N9O2
- Structure:
- Chemical Name:
- Vilanterol Impurity 3 Triphenylacetate
- CAS:
- 503070-62-0
- MF:
- C23H31Cl2NO5
- Chemical Name:
- Empagliflozin Impurity 33
- Structure:
- Chemical Name:
- Sugammadex Impurity 21
- CAS:
- 2412952-93-1
- MF:
- C72H113NaO48S8
- Structure:
- Chemical Name:
- 4-((1,4,8,11-tetraazacyclotetradecan-1-yl)methyl)benzaldehyde trihydrochloride
- CAS:
- 1254176-45-8
- MF:
- C18H30N4O
- Structure:
- Chemical Name:
- 3'-Deoxyneamine
- CAS:
- 34051-04-2
- MF:
- C12H26N4O5
- Structure:
- Chemical Name:
- Remifentanil Impurity 1 (RTF-02)
- CAS:
- 938184-94-2
- MF:
- C16H21N3O2
- Structure:
- Chemical Name:
- methyl (3aS,4R,6S,6aR)-4-((tert-butoxycarbonyl)amino)-3-(pentan-3-yl)-3a,5,6,6a-tetrahydro-4H-cyclopenta[d]isoxazole-6-carboxylate
- CAS:
- 383910-25-6
- MF:
- C18H30N2O5
- Structure:
- Chemical Name:
- sodium (((((R)-1-(6-amino-9H-purin-9-yl)propan-2-yl)oxy) methyl)oxidophosphoryl)-L-alaninate
- CAS:
- 382140-24-1
- MF:
- C12H19N6O5P
- Structure:
- Chemical Name:
- N-Des-tetrahydrofuran N-(6,7-Dimethoxy-4,4a-dihydroquinazolin-4-amine) Alfuzosin
- CAS:
- 928780-95-4
- MF:
- C24H30N8O4
- Chemical Name:
- Zopiclone Impurity 13
- Structure:
- Chemical Name:
- N-METHYLISATIN
- CAS:
- 2058-74-4
- MF:
- C9H7NO2
- Structure:
- Chemical Name:
- 1-bromo-3-(4-ethoxybenzyl)benzene
- CAS:
- 898538-17-5
- MF:
- C15H15BrO
- Structure:
- Chemical Name:
- (2S,3R,4R,5S,6R)-2-(4-chloro-3-((4-ethoxyphenyl)(methoxy) methyl)phenyl)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol
- CAS:
- 1318794-28-3
- MF:
- C22H27ClO7
- Structure:
- Chemical Name:
- Brivaracetam Impurity
- CAS:
- 2432911-37-8
- MF:
- C11H22O3
- Chemical Name:
- Azithromycin EP Impurity K
- Chemical Name:
- Cefminox Sodium impurity 5
- Structure:
- Chemical Name:
- Moxifloxacin Impurity 37
- CAS:
- 1803729-19-2
- MF:
- C7H3ClF2O2
- Structure:
- Chemical Name:
- Nimodipine Impurity 12
- CAS:
- 39562-18-0
- MF:
- C19H22N2O6
- Chemical Name:
- Rosuvastatin Impurity 53
- Structure:
- Chemical Name:
- Sulbactam Impurity 8
- CAS:
- 75527-88-7
- MF:
- C8H10BrNO5S
- Structure:
- Chemical Name:
- Tenofovir Impurity 64
- CAS:
- 1878175-76-8
- MF:
- C13H23N5O8P2
- Chemical Name:
- Ticagrelor Impurity 65
- Structure:
- Chemical Name:
- Ticagrelor Impurity 72
- CAS:
- 1402150-11-1
- MF:
- C24H28F2N6O5S
- Chemical Name:
- Topiroxostat Impurity 18
- Structure:
- Chemical Name:
- Isorhamnetin 3,7-O-diglucoside
- CAS:
- 6758-51-6
- MF:
- C28H32O17
- Chemical Name:
- Afatinib Impurity 26
- Structure:
- Chemical Name:
- Amifostine Impurity 5
- CAS:
- 712255-27-1
- MF:
- C5H9BrN2
- Structure:
- Chemical Name:
- Aztreonam Impurity 5
- CAS:
- 2195336-17-3
- MF:
- C4H10N2O5S
- Chemical Name:
- Canagliflozin Impurity 35
- Structure:
- Chemical Name:
- Cefazolin Impurity 7 (Cefazolin Trimethylsilyl Ester)
- CAS:
- 1072000-00-0
- MF:
- C17H22N8O4S3Si
- Chemical Name:
- Dapagliflozin Impurity 25
- Chemical Name:
- Doripenem Impurity 1
- Chemical Name:
- Erlotinib Impurity 54
- Chemical Name:
- Erlotinib Impurity 59
- Chemical Name:
- Etoposide Impurity 5
- Chemical Name:
- Olaparib Impurity 26
- Structure:
- Chemical Name:
- Oseltamivir Impurity 14
- CAS:
- 2081110-44-1
- MF:
- C16H28N2O4
- Chemical Name:
- Rocuronium bromide Impurity 35
- Chemical Name:
- Adefovir Impurity 5
- Chemical Name:
- Apremilast Impurity QJ
- Chemical Name:
- Apremilast Impurity TTN
- Chemical Name:
- AZD9291 Osimertinib Impurity 1
- Chemical Name:
- Dextrorotation lansoprazole Impurity I
- Chemical Name:
- Ivabradine Impurity 31
- Chemical Name:
- lansoprazole Impurity 28
- Chemical Name:
- Lincomycin sulfoxide Impurity 1
- Structure:
- Chemical Name:
- Olanzapine impurity Q
- MF:
- C17H20N4S
- Chemical Name:
- Palbociclib Impurity 32
- Chemical Name:
- Ropivacaine Impurity 32
- Chemical Name:
- Ropivacaine Impurity 41
- Chemical Name:
- Sugammadex sodium dimer
- Chemical Name:
- Sugammadex sodium Org49095 Impurity
- Chemical Name:
- Topiroxostat Impurity Ⅲ-2
- Structure:
- Chemical Name:
- Parecoxib Impurity 12
- CAS:
- 2229657-81-0
- MF:
- C19H18N2O4S
- Structure:
- Chemical Name:
- Afatinib impurity 29
- CAS:
- 1957132-02-3
- MF:
- C22H23ClFN5O2
- Structure:
- Chemical Name:
- Avibactam Impurity 44
- CAS:
- 2064219-22-1
- MF:
- C23H46N4O6S
- Chemical Name:
- Bortezomib Impurity W