Reference Substance
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- Structure:
- Chemical Name:
- Levalbuterol Related Compound B (20 mg) (alpha-[{(1,1-Dimethylethyl)amino}methyl]-4-hydroxy-3-methyl-benzenemethanol)
- CAS:
- 18910-68-4
- MF:
- C13H21NO2
- Structure:
- Chemical Name:
- 3-O-De(2,6-dideoxy-3-C-Methyl-3-O-Methyl-α-L-ribo-hexopyranosyl)-8,9,10,11-tetradehydro-9-deoxo-11,12-dideoxy-9,12-epoxy-6-O-MethylerythroMycin
- CAS:
- 127157-35-1
- MF:
- C30H51NO8
- Structure:
- Chemical Name:
- 7-(4-BroMobenzoyl)-
- CAS:
- 241825-88-7
- MF:
- C15H8BrNO3
- Structure:
- Chemical Name:
- Valdecoxib IMpurity B
- CAS:
- 1373038-60-8
- MF:
- C32H25N3O6S2
- Structure:
- Chemical Name:
- 2-(((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methyl)thio)-1H-benzo[d]imidazole
- MF:
- C18H21N3O2S
- Chemical Name:
- bortezoMib iMpurity C
- Chemical Name:
- cefotaxiMe IMpurity F
- Structure:
- Chemical Name:
- 5-ForMyl-2-Methoxy-benzenesulfonaMide
- CAS:
- 105764-07-6
- MF:
- C8H9NO4S
- Structure:
- Chemical Name:
- 3'-Desethoxy-drotaverine
- CAS:
- 85475-88-3
- MF:
- C22H27NO4
- Structure:
- Chemical Name:
- 8-EpitacroliMus
- CAS:
- 129212-35-7
- MF:
- C44H69NO12
- Structure:
- Chemical Name:
- Xylohexaose
- CAS:
- 49694-21-5
- MF:
- C30H50O25
- Structure:
- Chemical Name:
- Avibactam INT 1
- CAS:
- 1416134-48-9
- MF:
- C17H24N2O7
- Structure:
- Chemical Name:
- (1S,3R,4S)-4-(2-((5-chloropyridin- 2-yl)amino)-2-oxoacetamido)-3-(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxamido)cyclohexane-1-carboxylic acid
- CAS:
- 834919-19-6
- MF:
- C22H25ClN6O5S
- Structure:
- Chemical Name:
- Iguratimod Impurity 10
- CAS:
- 149456-97-3
- MF:
- C18H20N2O6S
- Structure:
- Chemical Name:
- Valsartan Impurity 32
- CAS:
- 152708-24-2
- MF:
- C14H11N7
- Structure:
- Chemical Name:
- Apremilast Impurity 28
- CAS:
- 1802246-60-1
- MF:
- C30H27N3O9S
- Structure:
- Chemical Name:
- (2R,4R)-4-methyl-1-(((3-methylquinolin-8-yl)sulfonyl)-L-arginyl)piperidine-2-carboxylic acid
- CAS:
- 951130-92-0
- MF:
- C23H32N6O5S
- Structure:
- Chemical Name:
- Minodronic Acid Impurity 2
- CAS:
- 127657-45-8
- MF:
- C9H12N2O7P2
- Structure:
- Chemical Name:
- isopropyl ((S)-((((R)-1-(6-amino-9H-purin-9-yl)propan-2-yl)oxy)methyl)(phenoxy)phosphoryl)-D-alaninate
- CAS:
- 2053424-82-9
- MF:
- C21H29N6O5P
- Structure:
- Chemical Name:
- Apixaban Impurity BMS-591329
- CAS:
- 2029205-64-7
- MF:
- C24H22ClN5O3
- Chemical Name:
- Dapagliflozin Impurity 21
- Structure:
- Chemical Name:
- Regorafenib impurity H
- CAS:
- 2141961-84-2
- MF:
- C15H14FN3O3
- Chemical Name:
- Cefditoren Pivoxil Dimer
- Structure:
- Chemical Name:
- UFFLDXFQXNYZLF-BHRSBNONSA-N
- CAS:
- 2084828-53-3
- MF:
- C52H61N7O8S2
- Structure:
- Chemical Name:
- 6,6′-bis(hydroxymethyl)-2,2′-bipyridine
- CAS:
- 74065-63-7
- MF:
- C12H12N2O2
- Structure:
- Chemical Name:
- CHITOBIOSE DIHYDROCHLORIDE
- CAS:
- 577-76-4
- MF:
- C12H24N2O9
- Chemical Name:
- Rocuronium bromide Impurity 32
- Structure:
- Chemical Name:
- Seco Rapamycin
- CAS:
- 147438-27-5
- MF:
- C51H79NO13
- Structure:
- Chemical Name:
- Albendazole EP Impurity J
- CAS:
- 946498-41-5
- MF:
- C9H7Cl2N3O2
- Structure:
- Chemical Name:
- Lapatinib 4-Fluoro Impurity
- CAS:
- 1026818-86-9
- MF:
- C29H26ClFN4O4S
- Structure:
- Chemical Name:
- Arbidol Impurity 1
- CAS:
- 1130901-04-0
- MF:
- C21H23BrN2O3S
- Structure:
- Chemical Name:
- Difluprednate Impurity 11
- CAS:
- 1270039-29-6
- MF:
- C21H24F2O4
- Chemical Name:
- Ozagrel impurity D
- Chemical Name:
- Pramipexole Impurity 13 HCl
- Structure:
- Chemical Name:
- Avibactam Impurity 46
- CAS:
- 1804915-68-1
- MF:
- C7H10N3NaO5S
- Chemical Name:
- Cilastatin Impurity F
- Structure:
- Chemical Name:
- Teriflunomide Impurity 1
- CAS:
- 1385789-70-7
- MF:
- C12H12N2O2
- Structure:
- Chemical Name:
- Atorvastatin Calcium Hydrate impurity 33
- CAS:
- 2299304-89-3
- MF:
- C24H44N2O7
- Structure:
- Chemical Name:
- 1-cyclopropyl-8-fluoro-6-methoxy-7-((4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
- CAS:
- 2252446-69-6
- MF:
- C21H25ClFN3O4
- Structure:
- Chemical Name:
- N-DEMETHYL ERYTHROMYCIN A
- CAS:
- 992-62-1
- MF:
- C36H65NO13
- Chemical Name:
- Ritonavir EP Impurity B（HCl）
- Structure:
- Chemical Name:
- Butenafine Impurity 12
- CAS:
- 759458-92-9
- MF:
- C13H13NO
- Chemical Name:
- △3-Cefoperazone
- Structure:
- Chemical Name:
- Peramivir Impurity 31
- CAS:
- 2758048-80-3
- MF:
- C15H28N2O4
- Structure:
- Chemical Name:
- (R)-2-TERT-BUTYLOXYCARBONYLAMINO-PENTANE-1,5-DIOL
- CAS:
- 397246-12-7
- MF:
- C10H21NO4
- Structure:
- Chemical Name:
- 15(R)-15-METHYL PROSTAGLANDIN F2ALPHA
- CAS:
- 35864-81-4
- MF:
- C21H36O5
- Structure:
- Chemical Name:
- BROMOCLENBUTEROL
- CAS:
- 37153-52-9
- MF:
- C12H18BrClN2O
- Structure:
- Chemical Name:
- 2,7,10,12-Tetraazatridecanoic acid, 4-hydroxy-12-methyl-9-(1-methylethyl)-13-[2-(1-methylethyl)-4-thiazolyl]-8,11-dioxo-3,6-bis(phenylmethyl)-, 5-thiazolylmethyl ester, (3S,4R,6R,9S)-
- CAS:
- 1414933-82-6
- MF:
- C37H48N6O5S2
- Structure:
- Chemical Name:
- 1,2,4-Oxadiazole-3-carboxamide, N-(3-chloro-2-hydroxypropyl)-5-methyl-
- CAS:
- 110578-70-6
- MF:
- C7H10ClN3O3
- Structure:
- Chemical Name:
- Pentoxifylline Impurity
- CAS:
- 1243654-85-4
- MF:
- C13H20N4O6
- Structure:
- Chemical Name:
- 1H-1,2,3-Triazole-4-methanol, 1-[(2,6-difluorophenyl)methyl]-
- CAS:
- 1364193-40-7
- MF:
- C10H9F2N3O
- Structure:
- Chemical Name:
- (E)-5-methoxy-1-[4-(trifluoromethyl)phenyl]pentan-1-one oxime
- CAS:
- 88699-84-7
- MF:
- C13H16F3NO2
- Chemical Name:
- Flomoxef Impurity III
- Chemical Name:
- Ampicillin Impurity Q(EP)（a trimer ）Or Impurity M n=2
- Structure:
- Chemical Name:
- Cyclopenta[5,6]naphtho[2,1-b]pyran-7-carboxylic acid, 2,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-4a,6a-dimethyl-2-oxo-, methyl ester, (4aR,4bS,6aS,7S,9aS,9bS)-
- CAS:
- 153222-81-2
- MF:
- C20H28O4
- Structure:
- Chemical Name:
- 2-(4-(2-(4-(1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoic acid
- MF:
- C24H29N3O2
- Structure:
- Chemical Name:
- Rapamycin, 32-O-demethyl-
- CAS:
- 141392-23-6
- MF:
- C50H77NO13
- Structure:
- Chemical Name:
- 11-monoketofusidic acid
- CAS:
- 16711-91-4
- MF:
- C31H46O6
- Structure:
- Chemical Name:
- (3R,5S,5'aR)-5-(3-Furyl)-3',4,5,5',5'aα,7',8',8'aα-octahydro-7'α-methylspiro[furan-3(2H),6'-[6H]naphtho[1,8-bc]furan]-2,2'(4'H)-dione
- CAS:
- 53625-15-3
- MF:
- C19H20O5
- Structure:
- Chemical Name:
- (+)-Bisabolangelone
- CAS:
- 30557-81-4
- MF:
- C15H20O3
- Structure:
- Chemical Name:
- Acotiamide Hydrochloride
- CAS:
- 185104-11-4
- MF:
- C21H31ClN4O5S
- Structure:
- Chemical Name:
- (S)-N-(1-aMino-1-oxobutan-2-yl)-4-chlorobutanaMide
- CAS:
- 102767-31-7
- MF:
- C8H15ClN2O2
- Structure:
- Chemical Name:
- [3-[[[2-(DiaMinoMethyleneaMino)-4-thiazolyl]Methyl]thio]propionyl]sulfaMide Hydrochloride (FaMotidine IMpurity)
- CAS:
- 76824-17-4
- MF:
- C8H15ClN6O3S3
- Structure:
- Chemical Name:
- Defluoro Aprepitant
- CAS:
- 170729-76-7
- MF:
- C23H22F6N4O3
- Structure:
- Chemical Name:
- [3S-[2(R*),3α,8aβ]]-Hexahydro-3-Methyl-1,4-dioxo-α-(2-phenylethyl)pyrrolo[1,2-a]pyrazine-2(1H)-acetic Acid
- CAS:
- 115623-21-7
- MF:
- C18H22N2O4
- Structure:
- Chemical Name:
- N-(3,5-DiMethyltricyclo[3.3.1.13,7]dec-1-yl)glycine
- CAS:
- 1340545-88-1
- MF:
- C14H23NO2
- Structure:
- Chemical Name:
- Tenuifoliside A
- CAS:
- 139726-35-5
- MF:
- C31H38O17
- Structure:
- Chemical Name:
- Gefitinib iMpurity
- CAS:
- 1608115-59-8
- MF:
- C22H23ClFN3O4
- Structure:
- Chemical Name:
- AMoxicillin IMpurity M
- MF:
- C16H19N3O5S
- Structure:
- Chemical Name:
- Apixaban IMpurity 3
- CAS:
- 1801881-18-4
- MF:
- C25H25N5O4
- Structure:
- Chemical Name:
- TaMsulosin EP IMpurity A
- CAS:
- 918867-88-6
- MF:
- C30H40N2O7S
- Structure:
- Chemical Name:
- Vildagliptin IMpurity 2 (Mixture of DiastereoMers)
- CAS:
- 1036959-23-5
- MF:
- C24H33N5O3
- Structure:
- Chemical Name:
- 5,5'-diMethoxycarbonyl-2,2'-bipyridine
- CAS:
- 1762-45-4
- MF:
- C14H12N2O4
- Structure:
- Chemical Name:
- ahu377 isomer 2
- CAS:
- 761373-05-1
- MF:
- C24H29NO5
- Structure:
- Chemical Name:
- Forsythoside I
- CAS:
- 1177581-50-8
- MF:
- C29H36O15
- Structure:
- Chemical Name:
- 2-cyanoethyl 3-aminobut-2-enoate
- CAS:
- 193539-61-6
- MF:
- C7H10N2O2
- Structure:
- Chemical Name:
- LCZ 696 Impurity B
- CAS:
- 766480-48-2
- MF:
- C24H29NO5
- Structure:
- Chemical Name:
- LCZ 696 Impurity C
- CAS:
- 149709-63-7
- MF:
- C24H29NO5
- Structure:
- Chemical Name:
- 4,4'-Bis-Dimethylsilyl-Biphenyl
- CAS:
- 17937-85-8
- MF:
- C16H22Si2
- Structure:
- Chemical Name:
- Canagliflozin α Isomer
- CAS:
- 1589590-87-3
- MF:
- C24H25FO5S
- Structure:
- Chemical Name:
- 2-(3-cyano-4-propoxyphenyl)-4-methylthiazole-5-carboxylic acid
- CAS:
- 1530308-87-2
- MF:
- C15H14N2O3S
- Structure:
- Chemical Name:
- 4-bromo-1-chloro-2-(2-ethoxybenzyl)benzene
- CAS:
- 1830346-16-1
- MF:
- C15H14BrClO
- Structure:
- Chemical Name:
- Clopidogrel EP Impurity B HCl
- CAS:
- 1396607-35-4
- MF:
- C16H17Cl2NO2S
- Structure:
- Chemical Name:
- Saikosaponin B3
- CAS:
- 58316-42-0
- MF:
- C43H72O14
- Structure:
- Chemical Name:
- diethyl 2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate
- CAS:
- 21829-26-5
- MF:
- C19H22N2O6
- Structure:
- Chemical Name:
- ROC-325
- CAS:
- 1859141-26-6
- MF:
- C28H27ClN4OS
- Structure:
- Chemical Name:
- Argatroban Impurity 26
- CAS:
- 189264-02-6
- MF:
- C23H36N6O5S
- Structure:
- Chemical Name:
- LPC(15：0)
- CAS:
- 1357147-16-0
- MF:
- C23H48NO7P
- Structure:
- Chemical Name:
- Pitavastatin Impurity 2
- CAS:
- 1187966-93-3
- MF:
- C25H22FNO4
- Structure:
- Chemical Name:
- Apixaban Dehydro Impurity
- CAS:
- 1074549-89-5
- MF:
- C25H23N5O4
- Structure:
- Chemical Name:
- 9-CIS-RETINOIC ACID
- CAS:
- 5300-03-8
- MF:
- C20H28O2
- Structure:
- Chemical Name:
- Ozagrel Impurity 7
- CAS:
- 883903-91-1
- MF:
- C23H21N2NaO4
- Chemical Name:
- N-Des acetyl impurity
- Structure:
- Chemical Name:
- ALPHA-(-)-THUJONE
- CAS:
- 546-80-5
- MF:
- C10H16O
- Structure:
- Chemical Name:
- Peramivir Impurity 6
- CAS:
- 2124296-37-1
- MF:
- C15H28N4O4
- Structure:
- Chemical Name:
- BRD0705
- CAS:
- 2056261-41-5
- MF:
- C20H23N3O
- Structure:
- Chemical Name:
- Rasagiline Impurity 2
- CAS:
- 200628-33-7
- MF:
- C16H18ClN
- Chemical Name:
- Bortezomib Impurity WQ
- Structure:
- Chemical Name:
- 6-alfa-Hydroxy Mometasone Furoate
- CAS:
- 134429-33-7
- MF:
- C27H30Cl2O7
- Chemical Name:
- Cefdinir Impurity