Reference Substance

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Structure Chemical Name CAS MF
ROBMDUUOTVWJEL-UHFFFAOYSA-N ROBMDUUOTVWJEL-UHFFFAOYSA-N 1797117-23-7 C19H24BrNO3
(3S,4S,6S,9S)-13-[2-(1-Hydroperoxy-1-methylethyl)-4-thiazolyl]-4-hydroxy-12-methyl-9-(1-methylethyl)-8,11-dioxo-3,6-bis(phenylmethyl)-2,7,10,12-tetraazatridecanoic Acid 5-thiazolylmethyl Ester (3S,4S,6S,9S)-13-[2-(1-Hydroperoxy-1-methylethyl)-4-thiazolyl]-4-hydroxy-12-methyl-9-(1-methylethyl)-8,11-dioxo-3,6-bis(phenylmethyl)-2,7,10,12-tetraazatridecanoic Acid 5-thiazolylmethyl Ester 2034136-66-6 C37H48N6O7S2
(S,E)-N-(1-((3-methylbut-1-en-1-yl)amino)-1-oxo-3-phenylpropan-2-yl) pyrazine-2-carboxamide (S,E)-N-(1-((3-methylbut-1-en-1-yl)amino)-1-oxo-3-phenylpropan-2-yl) pyrazine-2-carboxamide 862895-00-9 C19H22N4O2
4-((3-chloro-4-methoxybenzyl)amino)-2-(methylthio)-N-(pyrimidin-2-ylmethyl)pyrimidine-5-carboxamide 4-((3-chloro-4-methoxybenzyl)amino)-2-(methylthio)-N-(pyrimidin-2-ylmethyl)pyrimidine-5-carboxamide 1364671-62-4 C19H19ClN6O2S
Dapoxetine impurity Dapoxetine impurity 2242008-37-1 C30H31NO2
Zoledronic acid Zoledronic acid 1334703-07-9 C11H17ClN2O4
Apixaban Impurity 23 Apixaban Impurity 23 1801881-17-3 C24H23N5O3
Teriflunomide Impurity 3 Teriflunomide Impurity 3 62004-05-1 C12H9F3N2O2
Parecoxib ImpurityO Parecoxib ImpurityO 198470-91-6 C20H20N2O4S
tert-butyl 2-((4R,6R)-6-(2-((3R,5R)-7-(2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5- dihydroxyheptanamido)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate tert-butyl 2-((4R,6R)-6-(2-((3R,5R)-7-(2-(4-fluorophenyl)-5- isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5- dihydroxyheptanamido)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate 1371615-55-2 C47H60FN3O8
N-Nitroso-N-Methyl-4-Aminobutyric Acid N-Nitroso-N-Methyl-4-Aminobutyric Acid 61445-55-4 C5H10N2O3
Atorvastatin Impurity 35 Atorvastatin Impurity 35 C66H68CaF2N4O10
Lurasidone Impurity 44 Lurasidone Impurity 44
Cefathiamidine Impurity 3 Cefathiamidine Impurity 3
Trabectedin Intermediate A23 Trabectedin Intermediate A23 366020-68-0 C31H34N4O8S
Milrinone Impurity Milrinone Impurity 1443528-67-3
Amoxicillin EP Impurity O Amoxicillin EP Impurity O
FLUCONAZOLE IMPURITY C FLUCONAZOLE IMPURITY C 514222-44-7 C10H8N6
Peramivir Impurity 32 Peramivir Impurity 32
Sugammadex sodium Impurity 37 Sugammadex sodium Impurity 37
[18O3]-Chlorate [18O3]-Chlorate
Empagliflozin impurity 28 (hydroperoxy impurity) Empagliflozin impurity 28 (hydroperoxy impurity) 2452301-14-1 C23H27ClO9
(S)-2-amino-N-((S)-1-amino-1-oxobutan-2-yl)butanamide hydrochloride (S)-2-amino-N-((S)-1-amino-1-oxobutan-2-yl)butanamide hydrochloride 2432911-41-4 C8H17N3O2
Hexanenitrile, 3-(hydroxymethyl)-, (3R)- Hexanenitrile, 3-(hydroxymethyl)-, (3R)- 2179080-15-8 C7H13NO
Benzeneethanamine, 4-(3,5-diiodo-4-methoxyphenoxy)-3,5-diiodo- Benzeneethanamine, 4-(3,5-diiodo-4-methoxyphenoxy)-3,5-diiodo- 2230724-39-5 C15H13I4NO2
Avatrombopag Impurity 18 Avatrombopag Impurity 18
(Z)-alpha-(methoxyimino)furan-2-acetic acid (Z)-alpha-(methoxyimino)furan-2-acetic acid 39684-61-2 C7H7NO4
2-Propanol, 1-[[2-(2-methoxyphenoxy)ethyl]methylamino]-3-[(9-methyl-9H-carbazol-4-yl)oxy]- 2-Propanol, 1-[[2-(2-methoxyphenoxy)ethyl]methylamino]-3-[(9-methyl-9H-carbazol-4-yl)oxy]- 1479052-24-8 C26H30N2O4
1-Pyrrolidineacetic acid, α-ethyl-2-oxo-4-propyl-, (αS,4S)- 1-Pyrrolidineacetic acid, α-ethyl-2-oxo-4-propyl-, (αS,4S)- 2165431-90-1 C11H19NO3
3-Butenoic acid, 2-diazo-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-, (4-nitrophenyl)methyl ester 3-Butenoic acid, 2-diazo-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-, (4-nitrophenyl)methyl ester 93788-48-8 C17H23N3O5Si
Ampicillin Impurity P(usp3) Ampicillin Impurity P(usp3)
1-Piperidinepropanenitrile, 4-methyl-β-oxo-3-(7H-pyrrolo[2,3-d]pyrimidin-4-ylamino)-, (3R,4R)- 1-Piperidinepropanenitrile, 4-methyl-β-oxo-3-(7H-pyrrolo[2,3-d]pyrimidin-4-ylamino)-, (3R,4R)- 1527525-58-1 C15H18N6O
2H-1,3-Thiazine-2-acetic acid, α-[[(2Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetyl]amino]-4-[[(2,2-dimethyl-1-oxopropoxy)methoxy]carbonyl]-3,6-dihydro-5-[(1Z)-2-(4-methyl-5-thiazolyl)ethenyl]-, (2R)- 2H-1,3-Thiazine-2-acetic acid, α-[[(2Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetyl]amino]-4-[[(2,2-dimethyl-1-oxopropoxy)methoxy]carbonyl]-3,6-dihydro-5-[(1Z)-2-(4-methyl-5-thiazolyl)ethenyl]-, (2R)- 2409806-43-3 C25H30N6O8S3
Ritonavir EP Impurity PQR Ritonavir EP Impurity PQR
(3R,5R,7R,8R,9S,10R,12S,13R,14S,17R)-3,7,12-trihydroxy-10,13-dimethyl-17-[(] (3R,5R,7R,8R,9S,10R,12S,13R,14S,17R)-3,7,12-trihydroxy-10,13-dimethyl-17-[(] 863-39-8 C28H48O5
17-deacetylvecuronium 17-deacetylvecuronium 50587-95-6 C32H55BrN2O3
physalin F physalin F 57423-71-9 C28H30O10
Agarotetrol (AHl). Agarotetrol (AHl). C17H18O6
CETRORELIX CETRORELIX 145672-81-7 C70H92ClN17O14.C2H4O2
1-(3-Hydroxypropyl)-3,7-dimethyl-1H-purine-2,6(3H,7H)-dione 1-(3-Hydroxypropyl)-3,7-dimethyl-1H-purine-2,6(3H,7H)-dione 59413-14-8 C10H14N4O3
2-Methyl-5-nitro-1H-imidazole-1-acetic acid ethyl ester 2-Methyl-5-nitro-1H-imidazole-1-acetic acid ethyl ester 1016-40-6 C8H11N3O4
(E,E)-3,5-Di-O-caffeoylquinic acid (E,E)-3,5-Di-O-caffeoylquinic acid 89919-62-0 C25H24O12
Clindamycin 4-Phosphate Clindamycin 4-Phosphate 54887-30-8 C18H34ClN2O8PS
Hydroxy Ritonavir Hydroxy Ritonavir 176655-56-4 C37H48N6O6S2
(E)-17-ethyl-1,14-dihydroxy-12[(E)-2-(4-hydroxy-3-Methoxycyclohexyl)-1-Methylvinyl]-23,25-diMethoxy-13,19,21,27-tetraMethyl-11,28-dioxa-4-azatricyclo[22.3.1.0(super4,9)]octacos-18-ene-2,3,10,16-tetrone (E)-17-ethyl-1,14-dihydroxy-12[(E)-2-(4-hydroxy-3-Methoxycyclohexyl)-1-Methylvinyl]-23,25-diMethoxy-13,19,21,27-tetraMethyl-11,28-dioxa-4-azatricyclo[22.3.1.0(super4,9)]octacos-18-ene-2,3,10,16-tetrone 135635-46-0 C43H69NO12
2,3-Dehydro Ketoconazole 2,3-Dehydro Ketoconazole 254912-63-5 C26H26Cl2N4O4
rac-trans-4-Defluoro-4-ethoxy Paroxetine Hydrochloride rac-trans-4-Defluoro-4-ethoxy Paroxetine Hydrochloride 1346597-97-4 C21H26ClNO4
1,1'-Methylene Bis[TheobroMine] 1,1'-Methylene Bis[TheobroMine] 77196-87-3 C15H16N8O4
2-[[(3,5-DiMethyl-2-pyridinyl)Methyl]thio]-6-Methoxy-1H-benziMidazole 2-[[(3,5-DiMethyl-2-pyridinyl)Methyl]thio]-6-Methoxy-1H-benziMidazole 704910-89-4 C16H17N3OS
1-(4-AMinophenyl)-5,6-dihydro-3-(4-Morpholinyl)-2(1h)-pyridinone 1-(4-AMinophenyl)-5,6-dihydro-3-(4-Morpholinyl)-2(1h)-pyridinone 1267610-26-3 C15H19N3O2
(2R,3S)-2-[(1S)-1-[3,5-Bis(trifluoroMethyl)phenyl]ethoxy]-3-(4-fluorophenyl)Morpholine hydrochloride (2R,3S)-2-[(1S)-1-[3,5-Bis(trifluoroMethyl)phenyl]ethoxy]-3-(4-fluorophenyl)Morpholine hydrochloride 1185503-48-3 C20H18F7NO2
Desacetyl DesMethyl LacosaMide Desacetyl DesMethyl LacosaMide 175481-39-7 C10H14N2O2
SalbutaMol IMpurity K SalbutaMol IMpurity K 898542-80-8 C13H18ClNO3
TaMsulosin EP IMpurity C TaMsulosin EP IMpurity C C20H28N2O5S
Crizotinib iMpurity Crizotinib iMpurity
IpratropiuM BroMide IMpurity F (Mixture of DiastereoMers) IpratropiuM BroMide IMpurity F (Mixture of DiastereoMers) 17812-46-3 C20H29Br2NO3
Tedizolid IMpurity Tedizolid IMpurity 1256966-04-7 C37H34F2N14O11P2
Dabigatran Impurity 8 Dabigatran Impurity 8 1408238-40-3 C34H40N6O6
Meropenem IMP A Meropenem IMP A 1053703-36-8 C17H27N3O6S
Bromhexine EP Impurity E Bromhexine EP Impurity E 1660957-93-6 C15H21Br2ClN2
Tizanidine Impurity Tizanidine Impurity
(R)-2-(1-((((R)-1-(3-((E)-2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)prop (R)-2-(1-((((R)-1-(3-((E)-2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)prop
N-(2-Amino-2-oxoethyl)-N-[(2S)-2-(3,5-dioxo-1-piperazinyl)propyl]-glycine N-(2-Amino-2-oxoethyl)-N-[(2S)-2-(3,5-dioxo-1-piperazinyl)propyl]-glycine 120418-76-0 C11H18N4O5
2-(Acetylamino)-N-(phenylmethyl)-2-propenamide 2-(Acetylamino)-N-(phenylmethyl)-2-propenamide 86921-49-5 C12H14N2O2
2-(4-(sec-butoxy)-3-cyanophenyl)-4-methylthiazole-5-carboxylic acid 2-(4-(sec-butoxy)-3-cyanophenyl)-4-methylthiazole-5-carboxylic acid 1335202-59-9 C16H16N2O3S
Canagliflozin Impurity 16 Canagliflozin Impurity 16 1807632-93-4 C15H14Br2O
Dapagliflozin Impurity 8 Dapagliflozin Impurity 8 2305949-33-9 C15H12ClIO2
Everolimus Impurity 1 Everolimus Impurity 1 745779-75-3 C52H81NO14
Ascorbic acid EP Impurity G (L-threo-Hex-2-eneric acid, 1-4-lactone) Ascorbic acid EP Impurity G (L-threo-Hex-2-eneric acid, 1-4-lactone) 66757-69-5 C6H6O7
Formoterol EP Impurity F Formoterol EP Impurity F 1795129-59-7 C37H46N4O6
Peramivir Impurity 1 Peramivir Impurity 1 1988779-13-0 C18H34N2O5
Trillikamtoside Q Trillikamtoside Q 2098642-70-5 C49H72O25
Lenalidomide Impurity 13 Lenalidomide Impurity 13 874760-71-1 C13H13N3O6
Paliperidone Impurity 7 Paliperidone Impurity 7 1415488-05-9 C27H45ClN2O3
DIHYDROCYCLOSPORIN A DIHYDROCYCLOSPORIN A 59865-15-5 C62H113N11O12
N-ACETYLNEURAMIN-LACTOSE N-ACETYLNEURAMIN-LACTOSE 35890-39-2 C23H39NO19
8-cyclopentyl-5-methyl-2-((5-(piperazin-1-yl)pyridin-2-yl)amino)-6-vinylpyrido[2,3-d]pyrimidin-7(8H)-one 8-cyclopentyl-5-methyl-2-((5-(piperazin-1-yl)pyridin-2-yl)amino)-6-vinylpyrido[2,3-d]pyrimidin-7(8H)-one 2204863-06-7 C24H29N7O
Irinotecan Impurity 18 Irinotecan Impurity 18 1255644-71-3 C33H38N4O6
Erythromycin Impurity 9 Erythromycin Impurity 9 58781-38-7 C38H63NO13
Rasagiline Dipropynyl HCl Rasagiline Dipropynyl HCl 92850-02-7 C15H15N
Bortezomib Impurity Z Bortezomib Impurity Z
Bortezomib Impurity Z Bortezomib Impurity Z
Cilastatin Impurity B Cilastatin Impurity B
Brivaracetam Impurity 21 Brivaracetam Impurity 21 63095-60-3 C7H12O2
Afatinib Impurity des-EJA Afatinib Impurity des-EJA 2223677-64-1 C22H20ClFN4O3
Parecoxib Sodium EJF Parecoxib Sodium EJF 2338845-31-9 C32H24N2O4S
Deferasirox Impurity 13 Deferasirox Impurity 13
Doxofylline iMpurity D Doxofylline iMpurity D 67236-15-1 C19H28ClNO3
N-Pyrazinylcarbonyl-L-phenylalanine Methyl Ester N-Pyrazinylcarbonyl-L-phenylalanine Methyl Ester 73058-37-4 C15H15N3O3
Piperacillin impurity 8/Piperacillin Dimer impurity 3 Piperacillin impurity 8/Piperacillin Dimer impurity 3 2170771-53-4 C46H54N10O14S2
Demeclocycline Impurity E(EP) Demeclocycline Impurity E(EP) 22756-01-0 C21H20N2O7
rac-Ibuprofen amide rac-Ibuprofen amide 59512-17-3 C13H19NO
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)- 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)- 1193105-97-3 C12H19N3O5S
1H-Imidazole-5-carboxylic acid, 1-methyl-4-[methyl[[(5-oxohexyl)amino]carbonyl]amino]- 1H-Imidazole-5-carboxylic acid, 1-methyl-4-[methyl[[(5-oxohexyl)amino]carbonyl]amino]- 84321-40-4 C13H20N4O4
1H-Imidazole-5-carboxamide, 1-methyl-4-(methylamino)-N-(5-oxohexyl)- 1H-Imidazole-5-carboxamide, 1-methyl-4-(methylamino)-N-(5-oxohexyl)- 70486-28-1 C12H20N4O2
3-chloro-N,N-dimethyl-1-phenylpropan-1-amine hydrochloride 3-chloro-N,N-dimethyl-1-phenylpropan-1-amine hydrochloride 81402-53-1 C11H17Cl2N
Montelukast sodium EP Impurity J Montelukast sodium EP Impurity J
2,3-dihydro-2-methyl-1H-indol-1-amine monomethanesulphonate       2,3-dihydro-2-methyl-1H-indol-1-amine monomethanesulphonate 85392-00-3 C10H16N2O3S
Butanoic acid, 2,4-dicyano-3-oxo-, ethyl ester Butanoic acid, 2,4-dicyano-3-oxo-, ethyl ester 861612-04-6 C8H8N2O3
D-threo-Pentitol, 2,5-anhydro-1,3,4-trideoxy-2-C-(4-fluorophenyl)-4-(hydroxymethyl)-1-(1H-1,2,4-triazol-1-yl)- D-threo-Pentitol, 2,5-anhydro-1,3,4-trideoxy-2-C-(4-fluorophenyl)-4-(hydroxymethyl)-1-(1H-1,2,4-triazol-1-yl)- 1978305-26-8 C14H16FN3O2
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