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Pharmaceutical Impurity Reference Standards

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Structure Chemical Name CAS MF
Tafluprost Impurity 11 Tafluprost Impurity 11
Tazobactam Impurity 4 Tazobactam Impurity 4
Ticagrelor Impurity 103 Ticagrelor Impurity 103
Ticagrelor Impurity 94 Ticagrelor Impurity 94
Tofacitinib Impurity 119 Tofacitinib Impurity 119
Trelagliptin Impurity 26 Trelagliptin Impurity 26
Trelagliptin Impurity 31 Trelagliptin Impurity 31
Caspofungin impurity E Caspofungin impurity E
Erythromycin Impurity C Erythromycin Impurity C
Itraconazole iMpurity 4 Itraconazole iMpurity 4
Azacitidine Impurity 3 Azacitidine Impurity 3
Ozagrel Impurity 2 Ozagrel Impurity 2
Olaparib Impurity 22 Olaparib Impurity 22
Irbesartan Impurity 14 Irbesartan Impurity 14 133690-91-2 C25H28N6O
Febuxostat Impurity 25 Febuxostat Impurity 25 1643131-89-8 C17H20N2O4S
Pregabalin Impurity 3 Pregabalin Impurity 3 1928754-83-9 C12H22O3
Bosutinib Impurity 6 Bosutinib Impurity 6
Ticagrelor Impurity 49 Ticagrelor Impurity 49
Edoxaban Impurity 14 Edoxaban Impurity 14
Indacaterol Impurity 3 Indacaterol Impurity 3 2250243-41-3 C26H32N2O3
Canagliflozin Impurity 11 Canagliflozin Impurity 11
Oseltamivir Impurity 22 Oseltamivir Impurity 22
Riociguat IMpurtiy B Riociguat IMpurtiy B
Silodosin Impurity C Silodosin Impurity C
Dexmedetomidine-025 Dexmedetomidine-025 2250242-52-3 C20H22N2
pranoprofen impurity 15 pranoprofen impurity 15
Mono-Hydroxy Sugammadex Mono-Hydroxy Sugammadex 2376607-99-5 C69H109NaO47S7
Metronidazole impurity A Metronidazole impurity A
Sulpiride Impurity 6 Sulpiride Impurity 6
Cefminox Impurity A Cefminox Impurity A
Cefminox Impurity F Cefminox Impurity F
(S-(R* S*))-(+)-N-(1-PHENYLETHYL)-1- AZ& (S-(R* S*))-(+)-N-(1-PHENYLETHYL)-1- AZ& 120570-09-4 C15H24Cl2N2
CLOPIDOGREL RELATED COMPOUND B (20 MG) (METHYL(+/-)-(O-CHLOROPHENYL)-4,5-DIHYDROTHIE-NO[2,3-C]PYRIDINE-6(7H)-ACETATE, HYDROCHLORIDE) CLOPIDOGREL RELATED COMPOUND B (20 MG) (METHYL(+/-)-(O-CHLOROPHENYL)-4,5-DIHYDROTHIE-NO[2,3-C]PYRIDINE-6(7H)-ACETATE, HYDROCHLORIDE) 144750-52-7 C16H16ClNO2S.ClH
VERAPAMIL RELATED COMPOUND B (50 MG) (AL-PHA-[2-[[2-(3,4-DIMETHOXYPHENYL)-ETHYL]METHYLA-MINO]ETHYL]-3,4-DIMETHOXY-ALPHA-(1-METHY-LETHYL)-BENZENEACETONITRILE MONOHYDROCHLORIDE) VERAPAMIL RELATED COMPOUND B (50 MG) (AL-PHA-[2-[[2-(3,4-DIMETHOXYPHENYL)-ETHYL]METHYLA-MINO]ETHYL]-3,4-DIMETHOXY-ALPHA-(1-METHY-LETHYL)-BENZENEACETONITRILE MONOHYDROCHLORIDE) 1794-55-4 C26H37ClN2O4
N-(5-(Propionyloxy)pentyl Acrylate) rac-trans-Laudanosine Benzenesulfonate N-(5-(Propionyloxy)pentyl Acrylate) rac-trans-Laudanosine Benzenesulfonate 155913-32-9 C38H49NO11S
1,8-ditosyl-1,4,8,11-tetraazacyclotetradecane dihydrochloride 1,8-ditosyl-1,4,8,11-tetraazacyclotetradecane dihydrochloride C24H38Cl2N4O4S2
Mupirocin iMpurity 5 Mupirocin iMpurity 5 C26H44O9
Tolvaptan Impurity 11 Tolvaptan Impurity 11 150683-27-5 C25H23ClN2O3
1638785-19-9 1638785-19-9 1638785-19-9 C13H15ClO3
1155863-81-2 1155863-81-2 1155863-81-2 C23H19F2N3O6
1175018-73-1 1175018-73-1 1175018-73-1 C12H14ClN
tert-butyl (3S,5R)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4- (phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate tert-butyl (3S,5R)-7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4- (phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate C37H43FN2O5
Clopidogrel Impurity 44 Clopidogrel Impurity 44 C15H14ClNO2S
5-ethyl 7-methyl 6-(2-chlorophenyl)-8-methyl-3,4,5,6-tetrahydro-2H- benzo[b][1,4]oxazine-5,7-dicarboxylate 5-ethyl 7-methyl 6-(2-chlorophenyl)-8-methyl-3,4,5,6-tetrahydro-2H- benzo[b][1,4]oxazine-5,7-dicarboxylate 949155-13-9 C20H22ClNO5
Nifedipine impurity 06 Nifedipine impurity 06 C19H22N2O6
Moxifloxacin Impurity 10 Moxifloxacin Impurity 10
Ticagrelor Impurity 11 Ticagrelor Impurity 11
Parecoxib Impurity 18 Parecoxib Impurity 18
Apixaban Impurity 34 Apixaban Impurity 34
Teneligliptin Impurity 9 DiHCl Teneligliptin Impurity 9 DiHCl
Pramipexole Impurity Z2 Pramipexole Impurity Z2
monocalciummono(4-(((2R,4R)-1-([1,1'-biphenyl]-4-yl)-5-ethoxy- 4-methyl-5-oxopentan-2-yl)amino)-4-oxobutanoate) monocalciummono(4-(((2R,4R)-1-([1,1'-biphenyl]-4-yl)-5-ethoxy- 4-methyl-5-oxopentan-2-yl)amino)-4-oxobutanoate) C24H28CaNO5
Aprepitant iMpurity 40 Aprepitant iMpurity 40
Aprepitant iMpurity43 Aprepitant iMpurity43
5-Vinylpyrrolidone 5-Vinylpyrrolidone 7529-16-0 C6H9NO
4-[N-(2,4-DIAMINO-6-PTERIDINYLMETHYL)-N-METHYLAMINO] BENZOIC ACID 4-[N-(2,4-DIAMINO-6-PTERIDINYLMETHYL)-N-METHYLAMINO] BENZOIC ACID 19741-14-1 C15H15N7O2
PROPYLENE GLYCOL MONOLAURATE PROPYLENE GLYCOL MONOLAURATE 27194-74-7 C15H30O3
ZOPICLONE N-OXIDE ZOPICLONE N-OXIDE 43200-96-0 C17H17ClN6O4
1-Propanamine, 3-(diphenylphosphinyl)-N,N-dimethyl- 1-Propanamine, 3-(diphenylphosphinyl)-N,N-dimethyl- 962-95-8 C17H22NOP
Afatinib Impurity ODQ Afatinib Impurity ODQ
Afatinib Impurity QJJ Afatinib Impurity QJJ 2323570-72-3 C24H27ClFN5O4
Cabozantinib Impurity 50 Cabozantinib Impurity 50 202917-05-3 C17H14N2O5
Landiolol impurity U Landiolol impurity U
Teneligliptin Impurity 15 Teneligliptin Impurity 15
Nicergoline EP Impurity I Nicergoline EP Impurity I
Carbamic acid, N-[(4-methylphenyl)sulfonyl]- Carbamic acid, N-[(4-methylphenyl)sulfonyl]- 107628-27-3 C8H9NO4S
9H-Purin-6-amine, 9-(2-chloropropyl)- 9H-Purin-6-amine, 9-(2-chloropropyl)- 50615-40-2 C8H10ClN5
Hyoscine Butylbromide EP Impurity G Hyoscine Butylbromide EP Impurity G
Cinacalcet Impurity 38 HCl Cinacalcet Impurity 38 HCl 938177-81-2 C21H24ClN
Norepinephrine Impurity 23 Norepinephrine Impurity 23 1528622-09-4 C9H13NO3
Brexpiprazole Impurity 77 Brexpiprazole Impurity 77 1783311-11-4 C12H14N2S
(S)-1-(isopropylamino)-3-(4-(2-methoxyethyl)phenoxy)propan-2-ol (S)-1-(isopropylamino)-3-(4-(2-methoxyethyl)phenoxy)propan-2-ol 114218-35-8 C15H26ClNO3
Recombinant Endo Beta-N-Acetylglucosaminidase (ENGASE) Recombinant Endo Beta-N-Acetylglucosaminidase (ENGASE)
1-Pentanone, 1-(2-hydroxy-5-methylphenyl)- 1-Pentanone, 1-(2-hydroxy-5-methylphenyl)- 150033-77-5 C12H16O2
3-methyl-2-pentylphenol 3-methyl-2-pentylphenol 1823068-39-8 C12H18O
PLSQ-001 TM4-QJ PLSQ-001 TM4-QJ 1227162-74-4 C18H24N2O2
(2S)-2-(2,5-dioxo-3-propylpyrrolidin-1-yl)butanoic acid (2S)-2-(2,5-dioxo-3-propylpyrrolidin-1-yl)butanoic acid 2101641-92-1 C11H17NO4
2-Pyridineethanamine, N-methyl-N-[2-(2-pyridinyl)ethyl]-, hydrochloride (1:3) 2-Pyridineethanamine, N-methyl-N-[2-(2-pyridinyl)ethyl]-, hydrochloride (1:3) 2095467-43-7 C15H20ClN3
(S)-tert-butyl (1-(3-(2-cyanobenzyl) (S)-tert-butyl (1-(3-(2-cyanobenzyl) 1618644-31-7 C23H29N5O4
Droxidopa Impurity 4 Droxidopa Impurity 4 55382-14-4 C31H29NO7
(1r,4r)-4-(5,6-dibromo-2-methylquinazolin-3(4H)-yl)cyclohexan-1-ol (1r,4r)-4-(5,6-dibromo-2-methylquinazolin-3(4H)-yl)cyclohexan-1-ol
Dapagliflozin Impurity (MW:423Da) Dapagliflozin Impurity (MW:423Da)
Ramipril - Isomer Impurity 1 Ramipril - Isomer Impurity 1
Aripiprazole peroxide degradation Impurity (MW:480Da) Aripiprazole peroxide degradation Impurity (MW:480Da)
Fosinopril Sodium Impurity A (Fosinoprilat) Fosinopril Sodium Impurity A (Fosinoprilat)
Dapoxetine Impurity 40 Dapoxetine Impurity 40
Doxofylline Impurity 15 Doxofylline Impurity 15
Iohexol Impurity 10 Iohexol Impurity 10
Salbutamol Impurity 40 Salbutamol Impurity 40
Benzylpenicillin EP(CP) Impurity F Benzylpenicillin EP(CP) Impurity F
(3R,5R)-7-(2-(2-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoic acid (3R,5R)-7-(2-(2-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoic acid 2243639-98-5 C33H37CaFN2O5
Flucloxacillin sodium EP Impurity A Flucloxacillin sodium EP Impurity A
Nilotinib Impurity 28 Nilotinib Impurity 28 1807607-72-2 C28H20F3N7O3
T-IRR T-IRR
Escitalopram Acid Impurity Escitalopram Acid Impurity 1133881-04-5 C20H22FNO3
1,3,6,10,14-Hexadecapentaene, 3,7,11,15-tetramethyl-, (3E,6E,10E)- 1,3,6,10,14-Hexadecapentaene, 3,7,11,15-tetramethyl-, (3E,6E,10E)- 77898-97-6 C20H32
BROMOCRIPTINE IMPURITY A BROMOCRIPTINE IMPURITY A C32H40BrN5O5
(1'R,3'S,3S,5R,6R)-5-AMINO-2-AMINOMETHYL-6-(4,6-DIAMINO-2,3-DIHYDROXY-CYCLOHEXYLOXY)-TETRAHYDRO-PYRAN-3,4-DIOL (1'R,3'S,3S,5R,6R)-5-AMINO-2-AMINOMETHYL-6-(4,6-DIAMINO-2,3-DIHYDROXY-CYCLOHEXYLOXY)-TETRAHYDRO-PYRAN-3,4-DIOL 3947-65-7 C12H26N4O6
1-ETHYL-1-METHYLSUCCINIC ACID 1-ETHYL-1-METHYLSUCCINIC ACID 631-31-2 C7H12O4
MUPIROCIN CALCIUM, REFERENCE SPECTRUM EP STANDARD MUPIROCIN CALCIUM, REFERENCE SPECTRUM EP STANDARD 115074-43-6 C52H86CaO18.2H2O
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