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Pharmaceutical Impurity Reference Standards
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- Chemical Name:
- (R)-CITALOPRAM R-(+)-1-3-(dimethyl-amino) propyl-1-(p-fluorophenyl)-5-phthalancarbonitrile
- Structure:
- Chemical Name:
- Atorvastatin pyrrolidone lactone
- CAS:
- 906552-19-0
- MF:
- C33H33FN2O5
- Chemical Name:
- Cabozantinib Impurity G
- Structure:
- Chemical Name:
- Clopidogrel Impurity 10
- MF:
- C15H14ClNO2S
- Structure:
- Chemical Name:
- Dapoxetine Impurity 4 HCl
- CAS:
- 119357-39-0
- MF:
- C21H23NO
- Structure:
- Chemical Name:
- Medetomidine Impurity 2
- CAS:
- 33967-19-0
- MF:
- C10H14O
- Structure:
- Chemical Name:
- Tofacitinib Impurity 34
- CAS:
- 2459302-86-2
- MF:
- C19H22N8
- Structure:
- Chemical Name:
- 1,2-Ethanediamine, N,N,N',N'-tetrakis(2-aminoethyl)-
- CAS:
- 4097-90-9
- MF:
- C10H28N6
- Structure:
- Chemical Name:
- Omeprazole EP Impurity G
- CAS:
- 125656-83-9
- MF:
- C16H13N3O2S
- Structure:
- Chemical Name:
- Piperazine, 1-methyl-4-[(4-methyl-1-piperazinyl)carbonyl]-
- CAS:
- 4180-30-7
- MF:
- C11H22N4O
- Chemical Name:
- Cefdinan impurity S
- Structure:
- Chemical Name:
- (4S)-2-(((R)-2-Amino-2-phenylacetamido)(carboxy)-methyl)-5,5-dimethylthiazolidine-4-carboxylic
- CAS:
- 1642629-93-3
- MF:
- C16H21N3O5S
- Structure:
- Chemical Name:
- 3,3'-(ethane-1,2-diyl)bis(1-(2-chloroethyl)-1H-benzo[d]imidazol-2(3H)-one)
- CAS:
- 191977-79-4
- MF:
- C20H20Cl2N4O2
- Structure:
- Chemical Name:
- octakis(6-chloro-6-deoxy)-γ-cyclodextrin
- CAS:
- 173094-60-5
- MF:
- C48H72Cl8O32
- Structure:
- Chemical Name:
- N-[4-(difluoromethoxy)-2-nitrophenyl]acetamide
- CAS:
- 97963-75-2
- MF:
- C9H8F2N2O4
- Structure:
- Chemical Name:
- Ropivacaine-ET
- CAS:
- 2180-94-1
- MF:
- C16H24N2O
- Structure:
- Chemical Name:
- Pitavastatin Dihydrobenzophenanthridine
- CAS:
- 1187966-91-1
- MF:
- C25H24FNO4
- Structure:
- Chemical Name:
- BDJS-SH 3
- CAS:
- 1817657-89-8
- MF:
- C12H18N2O2
- Chemical Name:
- Aprepitant Impurity 19
- CAS:
- 1333995-14-4
- Chemical Name:
- Blonanserin impurity E
- Chemical Name:
- Clindamycin Impurity 17
- Structure:
- Chemical Name:
- Edaravone Impurity 12
- CAS:
- 2061958-41-4
- MF:
- C12H16N2O2
- Chemical Name:
- Empagliflozin Impurity 19
- Chemical Name:
- Erythromycin impurity D
- Chemical Name:
- FeBuxostat Impurity 40
- Structure:
- Chemical Name:
- Formoterol Impurity 13
- CAS:
- 150513-24-9
- MF:
- C18H24N2O3
- Structure:
- Chemical Name:
- Fosaprepitant Impurity 4
- CAS:
- 1523569-85-8
- MF:
- C37H34F7N4O6P
- Structure:
- Chemical Name:
- Fudosteine Impurity 2
- CAS:
- 1480319-53-6
- MF:
- C6H13NO5S
- Chemical Name:
- Ilaprazole Impurity 1
- Chemical Name:
- Ilaprazole Impurity 2
- Chemical Name:
- Isavuconazole Impurity 10
- Chemical Name:
- Isavuconazole Impurity 18
- Chemical Name:
- Isavuconazole Impurity 6
- Structure:
- Chemical Name:
- Lercanidipine Impurity 4
- CAS:
- 2727061-30-3
- MF:
- C18H23NO2
- Chemical Name:
- Nitrendipine Impurity 4
- Chemical Name:
- Olaparib Impurity 6
- Chemical Name:
- Paclitaxel EP Impurity H
- Chemical Name:
- Paroxetine Impurity 10
- Chemical Name:
- Posaconazole Impurity 31
- Structure:
- Chemical Name:
- Posaconazole Impurity 60
- CAS:
- 2134652-05-2
- MF:
- C14H14F2O4
- Chemical Name:
- Regorafenib impurity D
- Structure:
- Chemical Name:
- SofosBuvir impurity 21
- CAS:
- 1496552-50-1
- MF:
- C22H29ClN3O9P
- Chemical Name:
- sofosBuvir impurity 36
- Chemical Name:
- SofosBuvir Impurity 52
- Chemical Name:
- SofosBuvir Impurity 59
- Chemical Name:
- Ticagrelor impurity 25
- Structure:
- Chemical Name:
- Tirofiban Impurity 14
- CAS:
- 1103300-75-9
- MF:
- C12H17NO5S
- Structure:
- Chemical Name:
- Tirofiban Impurity 19
- CAS:
- 158808-75-4
- MF:
- C18H28N2O3
- Structure:
- Chemical Name:
- Amoxicillin Impurity P
- MF:
- C16H19N3O5S
- Chemical Name:
- Ampicillin Impurity S
- Chemical Name:
- Cefdinir Impurity F (CP)
- Structure:
- Chemical Name:
- Flucloxacillin Sodium Impurity A
- CAS:
- 68728-50-7
- MF:
- C19H20ClFN3NaO6S
- Structure:
- Chemical Name:
- Oxacillin Sodium Impurity G(EP)
- CAS:
- 724695-30-1
- MF:
- C19H18ClN3O5S
- Chemical Name:
- Spectinomycin Impurity D
- Structure:
- Chemical Name:
- (4R,4aS,5aR,12aS)-9-[2-(tert-butylamino)acetamido]-4,7-bis(dimethylamino)-3,10,12,12a-tetrahydroxy-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide
- MF:
- C29H39N5O8
- Structure:
- Chemical Name:
- Amifostine Impurity 3
- CAS:
- 41510-53-6
- MF:
- C5H15N2O3PS
- Chemical Name:
- Cefradine impurity C
- Structure:
- Chemical Name:
- Cefuroxime sodium impurity H
- MF:
- C16H16N4NaO8S
- Structure:
- Chemical Name:
- Bilastine N-Oxide
- CAS:
- 2069238-47-5
- MF:
- C28H37N3O4
- Chemical Name:
- Cefoxitin impurity F
- Structure:
- Chemical Name:
- Tenofovir Disoproxil Fumarate impurity N
- CAS:
- 1962114-92-6
- MF:
- C29H44N10O14P2
- Structure:
- Chemical Name:
- Prednisolone Impurity 7
- CAS:
- 61549-70-0
- MF:
- C21H26O6
- Structure:
- Chemical Name:
- Tenofovir Related Compound 10
- CAS:
- 16958-60-4
- MF:
- C8H11N5O
- Structure:
- Chemical Name:
- N-(4-methyl-3-(N-(4-(pyridin-3-yl)pyrimidin-2-yl)acetamido)phenyl)-4-((4-methylpiperazin-1-yl)methyl)benzamide
- MF:
- C31H33N7O2
- Structure:
- Chemical Name:
- N1-benzyl-N1,4-dimethyl-N3-(4-(pyridin-3-yl)pyrimidin-2-yl)benzene-1,3-diamine
- MF:
- C24H23N5
- Structure:
- Chemical Name:
- (E)-4-(((5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3- yl)methyl)(methyl)amino)-4-oxobut-2-enoic acid
- MF:
- C21H18FN3O5S
- Structure:
- Chemical Name:
- Apremilast
- CAS:
- 1384439-80-8
- MF:
- C17H16N2O6S
- Structure:
- Chemical Name:
- TROXACITABINE
- CAS:
- 145511-98-4
- MF:
- C8H11N3O4
- Structure:
- Chemical Name:
- XXZJUZXKBFUPQH-IKGGRYGDSA-N
- CAS:
- 1618657-31-0
- MF:
- C18H17FO4
- Structure:
- Chemical Name:
- 6-methyl-2-oxo-5-pyridin-2-yl-1H-pyridine-3-carbonitrile
- CAS:
- 106637-42-7
- MF:
- C12H9N3O
- Structure:
- Chemical Name:
- Levofloxacin Impurity 15
- CAS:
- 94714-58-6
- MF:
- C14H12F4O4
- Structure:
- Chemical Name:
- Losartan Impurity 2
- CAS:
- 1407521-00-9
- MF:
- C22H20ClN3O
- Structure:
- Chemical Name:
- Epoxy Exemestane (6-Alfa Isomer)
- CAS:
- 152764-24-4
- MF:
- C20H24O3
- Structure:
- Chemical Name:
- 6-Cyclopropyl-10-fluoro-7,8-dihydrobenzo[k]phenanthridine
- CAS:
- 1187966-94-4
- MF:
- C20H16FN
- Structure:
- Chemical Name:
- 2-methoxy-1,7,9-trimethylpurine-6,8-dione
- CAS:
- 51168-26-4
- MF:
- C9H12N4O3
- Structure:
- Chemical Name:
- 2-CHLORO-N-(2,5-DIMETHYLPHENYL)ACETAMIDE
- CAS:
- 5177-35-5
- MF:
- C10H12ClNO
- Structure:
- Chemical Name:
- (R)-(+)-(3-CHLORO-2-HYDROXYPROPYL)TRIMETHYLAMMONIUM CHLORIDE
- CAS:
- 117604-42-9
- MF:
- C6H15Cl2NO
- Structure:
- Chemical Name:
- REICHSTEIN'S SUBSTANCE S 21-ACETATE
- CAS:
- 640-87-9
- MF:
- C23H32O5
- Structure:
- Chemical Name:
- N,N'-(OXYDI-4,1-PHENYLENE)BISACETAMIDE
- CAS:
- 3070-86-8
- MF:
- C16H16N2O3
- Structure:
- Chemical Name:
- 3-(2-hydroxyethyl) 5-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate
- CAS:
- 85677-95-8
- MF:
- C18H20N2O7
- Structure:
- Chemical Name:
- 3-isobutylisobenzofuran-1(3H)-one
- CAS:
- 199736-94-2
- MF:
- C12H14O2
- Structure:
- Chemical Name:
- isopropyl(4,6-diamino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b] pyridin-3-yl)pyrimidin-5-yl)(methyl)carbamate
- CAS:
- 625115-54-0
- MF:
- C22H23FN8O2
- Structure:
- Chemical Name:
- Malvidin 3-O-glucoside
- CAS:
- 18470-06-9
- MF:
- C23H25O12+
- Structure:
- Chemical Name:
- (S)-Olodaterol
- CAS:
- 868049-50-7
- MF:
- C21H26N2O5
- Structure:
- Chemical Name:
- 5,6-DIHYDRO-3-METHYLAMINO-2H-1,4-THIAZIN-2-ONE OXIME
- CAS:
- 148639-72-9
- MF:
- C5H9N3OS
- Structure:
- Chemical Name:
- M-ISOBUTYL IBUPROFEN
- CAS:
- 66622-47-7
- MF:
- C13H18O2
- Structure:
- Chemical Name:
- 1,3-BIS(METHYLTHIO)-2-PROPANOL
- CAS:
- 31805-83-1
- MF:
- C5H12OS2
- Structure:
- Chemical Name:
- 4-ISOTHIOCYANATO-4'-NITRODIPHENYL ETHER
- CAS:
- 19881-18-6
- MF:
- C13H8N2O3S
- Structure:
- Chemical Name:
- (R)-N-Glycidylphthalimide
- CAS:
- 181140-34-1
- MF:
- C11H9NO3
- Structure:
- Chemical Name:
- 6-chloro-N-((1R,2S)-2-(3,4-difluorophenyl)cyclopropyl)-5- nitro-2-(propylthio)pyrimidin-4-amine
- CAS:
- 1427523-93-0
- MF:
- C16H15ClF2N4O2S
- Chemical Name:
- Bendamustine Impurity 15
- Chemical Name:
- Bendamustine Related Impurity 10
- Chemical Name:
- Bortezomib Impurity 16
- Structure:
- Chemical Name:
- Captopril Related Compound 8
- CAS:
- 112243-88-6
- MF:
- C9H15NO3S
- Chemical Name:
- Edoxaban Impurity 25 (1R,2S,4R) Oxalate
- Structure:
- Chemical Name:
- Ezetimibe Impurity 35
- CAS:
- 1650568-82-3
- MF:
- C39H46F2N2O5Si2
- Chemical Name:
- Fosaprepitant Impurity 8
- Structure:
- Chemical Name:
- Linagliptin Impurity 28
- CAS:
- 2074688-84-7
- MF:
- C22H23N7O3
- Chemical Name:
- Pantoprazole Impurity 3
- Chemical Name:
- Ticagrelor Related Compound 58