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Structure Chemical Name CAS MF
Pitavastatin Impurity 75 Pitavastatin Impurity 75
Febuxostat Impurity 100 Febuxostat Impurity 100
Febuxostat Impurity 101 Febuxostat Impurity 101
Febuxostat Impurity 105 Febuxostat Impurity 105
(S)-10-amino-9-fluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid (S)-10-amino-9-fluoro-3-methyl-7-oxo-3,7-dihydro-2H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid
Ticagrelor Impurity 129 Ticagrelor Impurity 129 1381841-36-6 C15H19NO3
Benzoic acid, 2-hydroxy-3-(2-phenyldiazenyl)- Benzoic acid, 2-hydroxy-3-(2-phenyldiazenyl)- 136819-59-5 C13H10N2O3
1,3-Benzenediamine, 4-methyl-N3-[4-methyl-6-(3-pyridinyl)-2-pyrimidinyl]- 1,3-Benzenediamine, 4-methyl-N3-[4-methyl-6-(3-pyridinyl)-2-pyrimidinyl]- 1032314-73-0 C17H17N5
5-methoxy-1-methyl-1H-benzo[d]imidazole-2-sulfonic acid 5-methoxy-1-methyl-1H-benzo[d]imidazole-2-sulfonic acid
Teneligliptin Impurity 17 Teneligliptin Impurity 17
1(3H)-Isobenzofuranone, 3-(1-methylpropyl)- 1(3H)-Isobenzofuranone, 3-(1-methylpropyl)- 261783-87-3 C12H14O2
2-Oxazolidinone, 5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-, (5S)- 2-Oxazolidinone, 5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-, (5S)- 2514942-86-8 C13H15NO4
6-Heptenoic acid, 7-[4-(4-fluorophenyl)-6-(1-methylethyl)-2-[methyl(methylsulfonyl)amino]-5-pyrimidinyl]-5-hydroxy-3-oxo-, (5S,6E)- 6-Heptenoic acid, 7-[4-(4-fluorophenyl)-6-(1-methylethyl)-2-[methyl(methylsulfonyl)amino]-5-pyrimidinyl]-5-hydroxy-3-oxo-, (5S,6E)- 1803023-43-9 C22H26FN3O6S
Drug impurity detection and analysis Drug impurity detection and analysis
Peramivir Impurity 20 Peramivir Impurity 20
Ambroxol Impurity 33 Ambroxol Impurity 33 199472-91-8 C13H20N2O
Bilastine Impurity 12 Bilastine Impurity 12 1638785-18-8 C30H42N4O3
RocuroniuMbroMide iMpurity F RocuroniuMbroMide iMpurity F
Oseltamivir Impurity 3 Oseltamivir Impurity 3
Phenylephrine Impurity 2 Phenylephrine Impurity 2 C9H13NO2
Pitavastatin Impurity 23 Pitavastatin Impurity 23 1467166-39-7 C28H28FNO4
Pregabalin Impurity 24 Pregabalin Impurity 24
Rocuronium Bromide Impurity 11 Rocuronium Bromide Impurity 11
Rocuronium Bromide Impurity 24 Rocuronium Bromide Impurity 24
Rosuvastatin EP Impurity L Rosuvastatin EP Impurity L
Timolol EP Impurity J Timolol EP Impurity J
Trimetazidine Impurity 7 Trimetazidine Impurity 7
Cefazolin Impurity L Cefazolin Impurity L
Ceftazidime hetero trans oxidation Impurity Ceftazidime hetero trans oxidation Impurity
Regorafenib Impurity 17 Regorafenib Impurity 17
Ropivacaine Impurity 45 Ropivacaine Impurity 45 2726971-51-1
Sildenafil Impurity 17 Sildenafil Impurity 17 C22H30N6O4S
Sugammadex sodium Org199074-1 Impurity Sugammadex sodium Org199074-1 Impurity
Sugammadex sodium Org238832-1 Impurity Sugammadex sodium Org238832-1 Impurity
Butyphthalide impurity 27 Butyphthalide impurity 27 33704-16-4 C12H12O5
Butyphthalide impurity 35 Butyphthalide impurity 35
Canagliflozin Impurity 31 Canagliflozin Impurity 31
Celecoxib Impurity 21 Celecoxib Impurity 21 2055787-31-8 C17H12F3N3O3S
Emtricitabine Impurity CFTU2 Emtricitabine Impurity CFTU2
Febuxostat Impurity 88 Febuxostat Impurity 88
Gefitinib Impurity S Gefitinib Impurity S
Ibrutinib Impurity 15 Ibrutinib Impurity 15 1288338-97-5 C47H46N12O3
Ribavirin IMpurity E Ribavirin IMpurity E 58151-90-9 C15H16N4O6
3-メトキシ-5,6,9,10,11,12-ヘキサヒドロ-11-メチル-4aH-ベンゾフロ[3a,3,2-ef][2]ベンゾアゼピン 3-メトキシ-5,6,9,10,11,12-ヘキサヒドロ-11-メチル-4aH-ベンゾフロ[3a,3,2-ef][2]ベンゾアゼピン 664995-65-7 C17H19NO2
ジエチルカルバミン酸クロロメチル ジエチルカルバミン酸クロロメチル 133217-92-2 C6H12ClNO2
トリメタジジンN-カルボン酸エチルエステル トリメタジジンN-カルボン酸エチルエステル 53531-01-4 C17H26N2O5
(S)-2-(3-chloro-2-hydroxypropyl)isoindoline-1,3-dione (S)-2-(3-chloro-2-hydroxypropyl)isoindoline-1,3-dione 148857-42-5 C11H10ClNO3
Loratadine IMpurity C Loratadine IMpurity C C22H23ClN2O2
Metoprolol IMpurity C Metoprolol IMpurity C C15H25NO3
para-Hydroxy L-Milnacipran para-Hydroxy L-Milnacipran 688738-11-6 C15H22N2O2
Varenicline Impurity 9 Varenicline Impurity 9
(2S,3R)-3-(6-(1-(6-chloro-5-fluoropyrimidin-4-yl)ethyl)-5-fluoropyrimidin-4-yl)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol (2S,3R)-3-(6-(1-(6-chloro-5-fluoropyrimidin-4-yl)ethyl)-5-fluoropyrimidin-4-yl)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol
1-Pyrrolidinecarboxamide, N-[5-[(2S)-2-(2,5-difluorophenyl)-1-pyrrolidinyl]pyrazolo[1,5-a]pyrimidin-3-yl]-3-hydroxy-, (3R)- 1-Pyrrolidinecarboxamide, N-[5-[(2S)-2-(2,5-difluorophenyl)-1-pyrrolidinyl]pyrazolo[1,5-a]pyrimidin-3-yl]-3-hydroxy-, (3R)- 2409590-08-3 C21H22F2N6O2
Sertraline Impurity 20 Sertraline Impurity 20 1498236-91-1 C16H14Cl2O
LCZ696(valsartan + sacubitril) impurity 34 LCZ696(valsartan + sacubitril) impurity 34
Lenvatinib Impurity 27 Lenvatinib Impurity 27
Montelukast sodium impurity H Montelukast sodium impurity H
Regorafenib Impurity 25 Regorafenib Impurity 25
Regorafenib Impurity 33 Regorafenib Impurity 33
Sitafloxacin Impurity ZZ-A-02 Sitafloxacin Impurity ZZ-A-02
Solifenacin impurity 19 Solifenacin impurity 19 1422505-78-9 C17H17NO
Tofacitinib Impurity 93 Tofacitinib Impurity 93
Topiroxostat Impurity 30 Topiroxostat Impurity 30
Sitafloxacin Impurity 8 Sitafloxacin Impurity 8
Budesonide Impurity 7 Budesonide Impurity 7 3949-79-9 C23H28O7
Diazepam Impurity 1 Diazepam Impurity 1 36020-94-7 C16H15ClN2O2
Rosuvastatin Related Compound 8 Rosuvastatin Related Compound 8 521974-01-6 C13H23ClO4
Aztreonam Impurity 8 Aztreonam Impurity 8
(1s,4s)-4-((2-amino-4-bromobenzyl)amino)cyclohexan-1-ol hydrochloride (1s,4s)-4-((2-amino-4-bromobenzyl)amino)cyclohexan-1-ol hydrochloride C13H20BrClN2O
Pitavastatin Impurity 18 Sodium Salt Pitavastatin Impurity 18 Sodium Salt 2276678-27-2 C25H25FNNaO5
Moxifloxacin Impurity 67 Moxifloxacin Impurity 67 1430075-14-1 C10H16ClNO3
Landiolol impurity Landiolol impurity
Irinotecan Impurity K Irinotecan Impurity K
Palbociclib Impurity 28 Palbociclib Impurity 28
Vildagliptin Impurity 37 Vildagliptin Impurity 37
Tazobactam Impurity B Tazobactam Impurity B 115546-66-2 C10H12N4O5S
Brexpiprazole Impurity 20 Brexpiprazole Impurity 20 105685-34-5 C12H14N2O
Pralatrexate Impurity 13 Pralatrexate Impurity 13
Pralatrexate Impurity 18 Pralatrexate Impurity 18
Pitavastatin Impurity 50 Pitavastatin Impurity 50
Pitavastatin Impurity 58 Pitavastatin Impurity 58
Lenvatinib Impurity 41 Lenvatinib Impurity 41
Tazobactam Impurity 12 Tazobactam Impurity 12
Tofacitinib Impurity 103 Tofacitinib Impurity 103
Posaconazole impurity 69 Posaconazole impurity 69
Crisaborole Impurity 3 Crisaborole Impurity 3
Canagliflozin Impurity 59 Canagliflozin Impurity 59
Canagliflozin Impurity 64 Canagliflozin Impurity 64
Hydroxychloroquine Impurity I Hydroxychloroquine Impurity I
Sitafloxacin Impurity 22 Sitafloxacin Impurity 22
Levetiracetam Impurity 24 Levetiracetam Impurity 24
Selexipag Impurity 5 Selexipag Impurity 5 2928611-79-2 C22H23N3O3
Levosimendan Impurity 11 Levosimendan Impurity 11
Cabozantinib impurity O Cabozantinib impurity O
(41S,12S,13aS)-12-(ethoxycarbonyl)-13a-ethyl-12-hydroxy-2,3,41,5,6,12,13,13a-octahydroindolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine 4(1H)-oxide (41S,12S,13aS)-12-(ethoxycarbonyl)-13a-ethyl-12-hydroxy-2,3,41,5,6,12,13,13a-octahydroindolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine 4(1H)-oxide 52341-36-3 C22H28N2O4
Rotigotine Impurity 5 Rotigotine Impurity 5
Rotigotine Impurity 10 Rotigotine Impurity 10
(2S)-シクロペンチル(ヒドロキシ)(フェニル)酢酸 (2S)-シクロペンチル(ヒドロキシ)(フェニル)酢酸 64471-43-8 C13H16O3
Olprinone Impurity 6 Olprinone Impurity 6
Trenbolone Acetate Process Impurity 4 Trenbolone Acetate Process Impurity 4 5218-51-9 C18H24O2
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