Reference Substance
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- Structure:
- Chemical Name:Ascorbic acid EP Impurity G (L-threo-Hex-2-eneric acid, 1-4-lactone)
- CAS:66757-69-5
- MF:C6H6O7
- Structure:
- Chemical Name:Formoterol EP Impurity F
- CAS:1795129-59-7
- MF:C37H46N4O6
- Structure:
- Chemical Name:Peramivir Impurity 1
- CAS:1988779-13-0
- MF:C18H34N2O5
- Structure:
- Chemical Name:Trillikamtoside Q
- CAS:2098642-70-5
- MF:C49H72O25
- Structure:
- Chemical Name:Lenalidomide Impurity 13
- CAS:874760-71-1
- MF:C13H13N3O6
- Structure:
- Chemical Name:Paliperidone Impurity 7
- CAS:1415488-05-9
- MF:C27H45ClN2O3
- Structure:
- Chemical Name:DIHYDROCYCLOSPORIN A
- CAS:59865-15-5
- MF:C62H113N11O12
- Structure:
- Chemical Name:N-ACETYLNEURAMIN-LACTOSE
- CAS:35890-39-2
- MF:C23H39NO19
- Structure:
- Chemical Name:8-cyclopentyl-5-methyl-2-((5-(piperazin-1-yl)pyridin-2-yl)amino)-6-vinylpyrido[2,3-d]pyrimidin-7(8H)-one
- CAS:2204863-06-7
- MF:C24H29N7O
- Structure:
- Chemical Name:Irinotecan Impurity 18
- CAS:1255644-71-3
- MF:C33H38N4O6
- Structure:
- Chemical Name:Erythromycin Impurity 9
- CAS:58781-38-7
- MF:C38H63NO13
- Structure:
- Chemical Name:Rasagiline Dipropynyl HCl
- CAS:92850-02-7
- MF:C15H15N
- Chemical Name:Bortezomib Impurity Z
- CAS:
- MF:
- Chemical Name:Bortezomib Impurity Z
- CAS:
- MF:
- Chemical Name:Cilastatin Impurity B
- CAS:
- MF:
- Structure:
- Chemical Name:Brivaracetam Impurity 21
- CAS:63095-60-3
- MF:C7H12O2
- Structure:
- Chemical Name:Afatinib Impurity des-EJA
- CAS:2223677-64-1
- MF:C22H20ClFN4O3
- Structure:
- Chemical Name:Parecoxib Sodium EJF
- CAS:2338845-31-9
- MF:C32H24N2O4S
- Chemical Name:Deferasirox Impurity 13
- CAS:
- MF:
- Structure:
- Chemical Name:Doxofylline iMpurity D
- CAS:67236-15-1
- MF:C19H28ClNO3
- Structure:
- Chemical Name:N-Pyrazinylcarbonyl-L-phenylalanine Methyl Ester
- CAS:73058-37-4
- MF:C15H15N3O3
- Structure:
- Chemical Name:Piperacillin impurity 8/Piperacillin Dimer impurity 3
- CAS:2170771-53-4
- MF:C46H54N10O14S2
- Structure:
- Chemical Name:Demeclocycline Impurity E(EP)
- CAS:22756-01-0
- MF:C21H20N2O7
- Structure:
- Chemical Name:rac-Ibuprofen amide
- CAS:59512-17-3
- MF:C13H19NO
- Structure:
- Chemical Name:D-glycero-Heptaric acid, 2,4,6-trideoxy-2-[(1R)-1-hydroxyethyl]-6-imino-5-S-[2-[(iminomethyl)amino]ethyl]-5-thio-, 7,3-lactone, (3ξ,5ξ)-
- CAS:1193105-97-3
- MF:C12H19N3O5S
- Structure:
- Chemical Name:1H-Imidazole-5-carboxylic acid, 1-methyl-4-[methyl[[(5-oxohexyl)amino]carbonyl]amino]-
- CAS:84321-40-4
- MF:C13H20N4O4
- Structure:
- Chemical Name:1H-Imidazole-5-carboxamide, 1-methyl-4-(methylamino)-N-(5-oxohexyl)-
- CAS:70486-28-1
- MF:C12H20N4O2
- Structure:
- Chemical Name:3-chloro-N,N-dimethyl-1-phenylpropan-1-amine hydrochloride
- CAS:81402-53-1
- MF:C11H17Cl2N
- Chemical Name:Montelukast sodium EP Impurity J
- CAS:
- MF:
- Structure:
- Chemical Name:2,3-dihydro-2-methyl-1H-indol-1-amine monomethanesulphonate
- CAS:85392-00-3
- MF:C10H16N2O3S
- Structure:
- Chemical Name:Butanoic acid, 2,4-dicyano-3-oxo-, ethyl ester
- CAS:861612-04-6
- MF:C8H8N2O3
- Structure:
- Chemical Name:D-threo-Pentitol, 2,5-anhydro-1,3,4-trideoxy-2-C-(4-fluorophenyl)-4-(hydroxymethyl)-1-(1H-1,2,4-triazol-1-yl)-
- CAS:1978305-26-8
- MF:C14H16FN3O2
- Structure:
- Chemical Name:5-[ethyl(2-hydroxyethyl)amino]pentan-2-one
- CAS:74509-79-8
- MF:C9H19NO2
- Chemical Name:Impurity reference substance
- CAS:
- MF:
- Structure:
- Chemical Name:(2b,3a,5a,16b,17b)-17-Acetoxy-3-hydroxy-2-(4-morpholinyl)-16-(1-pyrrolidinyl)androstane
- CAS:119302-24-8
- MF:C29H48N2O4
- Chemical Name:Bromhexine Glucose Compound 1
- CAS:3049873-97-1
- MF:
- Structure:
- Chemical Name:2-CHLORO-1-(4-ISOBUTYLPHENYL)PROPAN-1-ONE
- CAS:80336-66-9
- MF:C13H17ClO
- Structure:
- Chemical Name:Omeprazole EP Impurity F
- CAS:125656-82-8
- MF:C16H13N3O2S
- Structure:
- Chemical Name:1-METHYL-6,7-DIHYDROXY-3,4-DIHYDROISOQUINOLINE MONOHYDRATE
- CAS:27740-96-1
- MF:C10H13NO2
- Structure:
- Chemical Name:penicillin X
- CAS:525-91-7
- MF:C16H18N2O5S
- Structure:
- Chemical Name:curculigoside B
- CAS:143601-09-6
- MF:C21H24O11
- Structure:
- Chemical Name:taspine
- CAS:602-07-3
- MF:C20H19NO6
- Structure:
- Chemical Name:Batatasin I
- CAS:51415-00-0
- MF:C17H16O4
- Structure:
- Chemical Name:(-)-4-(4-Dimethylamino)-1-(4-fluorophenyl)-1-(hydroxybuty)-3-hydroxymethyl)-benzonitrile hemi D-(+)-di-p-toloyltartaric acid salt
- CAS:128173-53-5
- MF:2C20H23FN2O2.C20H18O8
- Structure:
- Chemical Name:(3,4-Dichlorobenzyl)methylamine
- CAS:5635-67-6
- MF:C8H9Cl2N
- Structure:
- Chemical Name:N-Desmethyl Dapoxetine
- CAS:157166-71-7
- MF:C20H22ClNO
- Structure:
- Chemical Name:LYSERGOL
- CAS:602-85-7
- MF:C16H18N2O
- Structure:
- Chemical Name:(1β,5β)-8-Methyl-8-azabicyclo[3.2.1]octa-6-ene-3α-ol
- CAS:20513-09-1
- MF:C8H13NO
- Structure:
- Chemical Name:N-Methyl-5-methylamino-1H-imidazole-4-carboxamide
- CAS:6736-40-9
- MF:C6H10N4O
- Structure:
- Chemical Name:(R)-(-)-MUSCONE
- CAS:10403-00-6
- MF:C16H30O
- Structure:
- Chemical Name:3-Isobutylglutarimid
- CAS:916982-10-0
- MF:C9H15NO2
- Structure:
- Chemical Name:Dehydroxy Bisoprolol
- CAS:1217245-60-7
- MF:C18H29NO3
- Structure:
- Chemical Name:6α-Hydroxy Norgestrel
- CAS:87585-03-3
- MF:C21H28O3
- Structure:
- Chemical Name:FaMotidine Acid IMpurity
- CAS:107880-74-0
- MF:C8H12N4O2S2
- Structure:
- Chemical Name:N-Desbutyl-N-propyl BuMetanide
- CAS:28395-28-0
- MF:C16H18N2O5S
- Structure:
- Chemical Name:(1S,2S,3S,4R)-Methyl 3-((R)-1-aMino-2-ethylbutyl)-4-(tert-butoxycarbonylaMino)-2-hydroxycyclopentanecarboxylate
- CAS:316173-29-2
- MF:C18H34N2O5
- Structure:
- Chemical Name:Amoxicillin Related Compound D (50 mg) ((4S)-2-{[(R)-2-amino-2-(4-hydroxyphenyl)acetamido](carboxy)methyl}-5,5-dimethylthiazolidine-4-carboxylic acid, monosodium salt)
- CAS:68728-47-2
- MF:C16H20N3NaO6S
- Structure:
- Chemical Name:Cyclophosphamide Related Compound D (25 mg) (3-[2-(2-chloroethylamino)ethylamino]propyl dihydrogen phosphate dihydrochloride)
- CAS:158401-51-5
- MF:C7H19Cl2N2O4P
- Structure:
- Chemical Name:3-Quinolinecarboxylic acid, 7-aMino-1-cyclopropyl-6-fluoro-1,4-dihydro-8-Methoxy-4-oxo-
- CAS:172426-88-9
- MF:C14H13FN2O4
- Structure:
- Chemical Name:EsoMeprazole related substance H431/41
- CAS:1227380-90-6
- MF:C16H15N3O4
- Structure:
- Chemical Name:AMpicillin EP IMpurity C
- CAS:49841-96-5
- MF:C16H19N3O4S
- Structure:
- Chemical Name:9β,10α-Pregna-4,6,8(14)-triene-3,20-dione
- CAS:23035-53-2
- MF:C21H26O2
- Structure:
- Chemical Name:N-(3,4-diMethoxyphenethyl)-4-(4-Methoxyphenyl)butan-2-aMine
- CAS:61413-44-3
- MF:C21H29NO3
- Structure:
- Chemical Name:Dabigatran Etexilate iMpurity H
- CAS:1702936-92-2
- MF:C19H20N4O3
- Structure:
- Chemical Name:RebaMipide 3-Chloro IMpurity
- CAS:90098-05-8
- MF:C19H15ClN2O4
- Structure:
- Chemical Name:Solifenacin IMpurity
- CAS:1956436-64-8
- MF:C23H26N2O3
- Structure:
- Chemical Name:Methotrexate γ-Methyl Ester
- CAS:67022-39-3
- MF:C21H24N8O5
- Structure:
- Chemical Name:RebaMipide iMpurity 1
- CAS:100342-53-8
- MF:C18H15ClN2O2
- Structure:
- Chemical Name:7-Chlorobenzo[b]thiophene-3-Methanol
- CAS:142181-53-1
- MF:C9H7ClOS
- Structure:
- Chemical Name:N,5-bis(4-chlorophenyl)-3-iMino-3,5-dihydrophenazin-2-aMine
- CAS:102262-55-5
- MF:C24H16Cl2N4
- Structure:
- Chemical Name:Milnacipran Related Impurity 3
- CAS:19532-98-0
- MF:C10H12N2O2
- Structure:
- Chemical Name:1,1′-Trimethylenedi-theobromine
- CAS:74857-22-0
- MF:C17H20N8O4
- Structure:
- Chemical Name:Salbutamol EP Impurity D
- CAS:
- MF:C13H21NO3
- Structure:
- Chemical Name:Atazanavir EP Impurity G
- CAS:1332981-16-4
- MF:C38H52N6O7
- Chemical Name:Olaparib Impurity G
- CAS:
- MF:
- Structure:
- Chemical Name:Brivaracetam Impurity B
- CAS:943986-67-2
- MF:C11H19NO3
- Chemical Name:Rufinamide Impurity 3
- CAS:
- MF:
- Structure:
- Chemical Name:2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid
- CAS:74936-81-5
- MF:C15H14N2O6
- Structure:
- Chemical Name:Apixaban Impurity 24
- CAS:1928718-22-2
- MF:C26H27N5O4
- Chemical Name:Cisatracurium Besilate impurity
- CAS:
- MF:
- Structure:
- Chemical Name:Azithromycin F
- CAS:612069-26-8
- MF:C38H72N2O13
- Structure:
- Chemical Name:[D-PRO2, D-TRP7,9]-SUBSTANCE P
- CAS:80434-86-2
- MF:C74H106N20O13S
- Structure:
- Chemical Name:ASTRAGALOSIDE
- CAS:17429-69-5
- MF:C28H32O17
- Structure:
- Chemical Name:1-(4-Bromobutyl)-3,4-dihydro-7-hydroxy-2(1H)-quinolinone
- CAS:1424857-68-0
- MF:C13H16BrNO2
- Structure:
- Chemical Name:Pitavastatin
- CAS:154170-27-1
- MF:C32H36FNO4
- Structure:
- Chemical Name:Famotidine EP Impurity A
- CAS:124646-10-2
- MF:C8H14N6S2
- Structure:
- Chemical Name:2-(azidomethyl)-1,3-difluorobenzene
- CAS:106308-60-5
- MF:C7H5F2N3
- Structure:
- Chemical Name:sobutyl 2-(3-cyano-4-isobutoxyphenyl)-4-methylthiazole-5 -carboxylate
- CAS:923942-36-3
- MF:C20H24N2O3S
- Structure:
- Chemical Name:(6-methyl-2-p-tolyl-2,3-dihydro-imidazo[1,2-a]pyridin-3-yl)-oxoacetic acid
- CAS:927820-48-2
- MF:C17H14N2O3
- Structure:
- Chemical Name:Rivaroxaban Related Compound (R-4-(4-(5-(Aminomethyl)-2-Oxooxazolidin-3-yl)phenyl-Morpholin-3-One HCl)
- CAS:1429311-47-6
- MF:C14H18ClN3O4
- Structure:
- Chemical Name:Cefprozil EP Impurity I
- CAS:
- MF:C18H19N3O5S
- Structure:
- Chemical Name:ethyl 2-(4-butoxy-3-formylphenyl)-4-methylthiazole-5- carboxylate
- CAS:2230270-03-6
- MF:C18H21NO4S
- Structure:
- Chemical Name:1H-Pyrazole-3-Carboxylicacid,4,5-Dihydro-5-Oxo-1-(4-Sulfophenyl)-,3-Ethylester,Sodiumsalt
- CAS:20514-27-6
- MF:C12H13N2NaO6S
- Structure:
- Chemical Name:((3S,5S,E)-7-(4-(4-fluorophenyl)-6-isopropyl-2-(N-methylmethyl sulfonamido)pyrimidin-5-yl)-3,5-dihydroxyhept-6-enoate) calcium(II)
- CAS:2185805-14-3
- MF:C44H54CaF2N6O12S2
- Structure:
- Chemical Name:Lincomycin EP Impurity C
- CAS:14600-41-0
- MF:C17H32N2O6S.ClH
- Structure:
- Chemical Name:Peramivir Impurity
- CAS:383910-24-5
- MF:C18H30N2O5
- Structure:
- Chemical Name:N-SucciniMidoxycarbonyl-β-alanine N-SucciniMidyl Ester
- CAS:21994-89-8
- MF:C12H13N3O8
- Chemical Name:Cefotaxime Impurity L
- CAS:
- MF:
- Structure:
- Chemical Name:(2RS)-2-(4-FORMYLPHENYL)PROPANOIC ACID
- CAS:43153-07-7
- MF:C10H10O3
- Structure:
- Chemical Name:Apremilast Impurity HS093313
- CAS:2077897-93-7
- MF:C20H21NO6S