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Reference Substance

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Structure:
Chemical Name:
Flumethasone Impurity 6 (9-Chloro-Flumethasone)
CAS:
1355648-15-5
MF:
C22H28ClFO5
Structure:
Chemical Name:
3-Quinolinecarboxylic acid, 7-[(4aS,7aS)-1-(2-carboxyethyl)octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-
CAS:
2489671-20-5
MF:
C24H28FN3O6
Structure:
Chemical Name:
Imipenem Impurity 4
CAS:
85604-01-9
MF:
C23H30N4O8S2
Structure:
Chemical Name:
3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, 3,5-bis(2-cyanoethyl) ester
CAS:
75130-34-6
MF:
C21H20N4O6
Structure:
Chemical Name:
Araloside C
CAS:
55446-15-6
MF:
C53H84O23
Chemical Name:
Sugammadex Sodium Impurity 36
Structure:
Chemical Name:
8,8'-((3R,3'R)-(methylenebis(azanediyl))bis(piperidine-3,1-diyl))bis(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione)
CAS:
2489212-72-6
MF:
C51H56N16O4
Chemical Name:
Ampicillin Hydantoin Analogs
Chemical Name:
Complete set of Ampicillin Impurities
Structure:
Chemical Name:
Helicianeoide B
CAS:
496066-89-8
MF:
C32H38O20
Structure:
Chemical Name:
benazepril
CAS:
131064-75-0
MF:
C24H28N2O5
Structure:
Chemical Name:
1-Cyclohexene-1-carboxylicacid,4-(aminomethyl)-(9CI)
CAS:
330838-52-3
MF:
C8H13NO2
Structure:
Chemical Name:
4-PREGNEN-6-BETA-OL-3,20-DIONE
CAS:
604-19-3
MF:
C21H30O3
Structure:
Chemical Name:
uridine 5'-tetraphosphate
CAS:
10003-94-8
MF:
C9H16N2O18P4
Structure:
Chemical Name:
AMILORIDE
CAS:
2609-46-3
MF:
C6H8ClN7O
Structure:
Chemical Name:
Aztreonam Amide
CAS:
1219444-93-5
MF:
C13H20N6O8S2
Structure:
Chemical Name:
1,2-Dithiolane-3-pentanoic acid 1-oxide
CAS:
6992-30-9
MF:
C8H14O3S2
Structure:
Chemical Name:
4-(3,4-Dihydro-4,4-dimethyl-7-pentylfuro[4,3,2-de][1]benzopyran-3-yl)-2-butanone
CAS:
70474-97-4
Structure:
Chemical Name:
3'-Demethyl-12-deoxyerythromycin
CAS:
33442-56-7
MF:
C36H65NO12
Structure:
Chemical Name:
2-[4-(4-METHOXY-PHENOXY)-PHENYL]-MALONIC ACID MONO-(4-METHOXY-PHENYL) ESTER
CAS:
70175-90-5
MF:
C25H24O7
Structure:
Chemical Name:
5-Desthiolyl-5-thioxo Cefoperazone
CAS:
711598-76-4
MF:
C25H27N9O8S2
Structure:
Chemical Name:
Clindamycin 3-Phosphate
CAS:
28708-34-1
MF:
C18H34ClN2O8PS
Structure:
Chemical Name:
N-[2-[(Methylamino)carbonyl]benzoyl]
CAS:
721958-72-1
MF:
C29H32ClN3O7
Structure:
Chemical Name:
3-O-Methylcarbidopa
CAS:
85933-19-3
MF:
C11H16N2O4
Structure:
Chemical Name:
C-DeMethyl ClethodiM
CAS:
112301-96-9
MF:
C16H24ClNO3S
Structure:
Chemical Name:
(4S,5S)-4-Benzyl-5-[(2S)-2-((4S)-4-isopropyl-2,5-dioxoiMidazolidin-1-yl)-3-phenylpropyl]-2-oxo-1,3-oxazolidine-3-carboxylate thiazol-5-ylMethyl Ester
CAS:
1010809-43-4
MF:
C30H32N4O6S
Structure:
Chemical Name:
ent-Tadalafil
CAS:
629652-72-8
MF:
C22H19N3O4
Structure:
Chemical Name:
6.7-dihydrothieno[3.2.c]pyridin-4(5H)-one
CAS:
68559-60-4
MF:
C7H7NOS
Structure:
Chemical Name:
N-DesaMinosulfonyl-N-cyano FaMotidine
CAS:
76823-97-7
MF:
C9H13N7S2
Structure:
Chemical Name:
6-Des(1-Methyl-2-benziMidazolyl)-6-carboxy TelMisartan
CAS:
884330-12-5
MF:
C26H24N2O4
Structure:
Chemical Name:
ent-Aprepitant
CAS:
172822-29-6
MF:
C23H21F7N4O3
Structure:
Chemical Name:
Clarithromycin Impurity H
CAS:
127140-69-6
MF:
C38H67NO14
Structure:
Chemical Name:
IMidazo[1,2-a]pyridin-6-aMine, 3-chloro-
CAS:
1094463-26-9
MF:
C7H6ClN3
Structure:
Chemical Name:
2-AMino-3-(4-broMobenzoyl)phenyloxoacetic Acid
CAS:
1391052-54-2
MF:
C15H10BrNO4
Structure:
Chemical Name:
Micafungin FR-179642 impurity (acid)
CAS:
168110-44-9
MF:
C35H52N8O20S
Structure:
Chemical Name:
(3R,4R)-3-[(6-amino-4-pyrimidinyl)methylamino]-4-methyl-β-oxo-1-Piperidinepropanenitrile
CAS:
1640971-60-3
MF:
C14H20N6O
Structure:
Chemical Name:
AMlodipine iMpurity
MF:
C26H31ClN2O8S
Structure:
Chemical Name:
Cephalexin IMpurity C
MF:
C16H17N3O4S
Structure:
Chemical Name:
Finasteride IMpurity C
CAS:
1329611-51-9
MF:
C23H34N2O2
Structure:
Chemical Name:
(R)-AMbrisentan
CAS:
1007358-76-0
MF:
C22H22N2O4
Structure:
Chemical Name:
Ivabradine IMpurity
CAS:
1616710-50-9
MF:
C27H35ClN2O6
Structure:
Chemical Name:
1,2-Bis(piperazin-1-yl)benzene
CAS:
1446750-99-7
MF:
C14H22N4
Structure:
Chemical Name:
4-Methyl-N-(3-(5-Methyl-1H-iMidazol-1-yl)-5-(trifluoroMethyl)phenyl)-3-((4-(pyridin-3-yl)pyriMidin-2-yl)aMino)benzaMide
CAS:
641571-15-5
MF:
C28H22F3N7O
Structure:
Chemical Name:
Pentoxifylline Impurity I
CAS:
55247-90-0
MF:
C14H14N4O2
Structure:
Chemical Name:
Pentoxifylline Impurity I
CAS:
55247-90-0
MF:
C14H14N4O2
Chemical Name:
Axitinib Impurity C
Structure:
Chemical Name:
Pregabalin EP Impurity A
CAS:
181289-23-6
MF:
C8H15NO
Structure:
Chemical Name:
Amoxicillin EP Impurity L
CAS:
1789703-32-7
MF:
C24H29N5O7S2
Structure:
Chemical Name:
Cefotiam Impurity 2
CAS:
1566599-01-6
MF:
C13H12N4O4S2
Structure:
Chemical Name:
Posaconazole Impurity 43
CAS:
357189-95-8
MF:
C37H40F2N8O6
Structure:
Chemical Name:
Tedizolid Impurity 34
CAS:
2095200-69-2
MF:
C16H18FN6O5P
Structure:
Chemical Name:
JYMSVNHODSJOPS-UHFFFAOYSA-N
CAS:
46053-56-9
MF:
C8H10N2O2
Structure:
Chemical Name:
Levosimendan Impurity 4
CAS:
131741-37-2
MF:
C14 H14 N6 O2
Structure:
Chemical Name:
Nicorandil Impurity 5
CAS:
896133-95-2
MF:
C8H10N2O3
Structure:
Chemical Name:
Ampicillin EP Impurity M
CAS:
62326-82-3
MF:
C32H38N6O8S2
Chemical Name:
Diclindamycin Pyrophosphate/Clindamycin Phosphate EP Impurity K
Structure:
Chemical Name:
Amoxicillin Impurity 3
CAS:
297175-66-7
MF:
C31H40N6O9S2
Chemical Name:
Ceftizoxime sodium Impurity 6
Chemical Name:
Dapagliflozin Impurity 27
Structure:
Chemical Name:
Celecoxib Impurity 23
CAS:
2247197-66-4
MF:
C18H15F3N2O3S
Structure:
Chemical Name:
5-(4-Fluorophenyl)thiophene-2-carboxylic acid
CAS:
115933-30-7
MF:
C11H7FO2S
Structure:
Chemical Name:
Moxifloxacin Impurity 29
CAS:
1620445-12-6
MF:
C21H22FN3O5
Structure:
Chemical Name:
2H-Isoindole-2-butanoic acid, 4-amino-γ-(aminocarbonyl)-1,3-dihydro-1-oxo-
CAS:
2197414-57-4
MF:
C13H15N3O4
Structure:
Chemical Name:
Paeoniflorgenin
CAS:
697300-41-7
MF:
C17H18O6
Chemical Name:
Reference preparation
Chemical Name:
Atracurium EP Impurity K
Structure:
Chemical Name:
PROPOFOL RELATED COMPOUND C (50 MG) (2,6-DIISOPROPYLPHENYL ISOPROPYLETHER)
CAS:
141214-18-8
MF:
C15H24O
Structure:
Chemical Name:
2-Methyltetrahydropyran
CAS:
10141-72-7
MF:
C6H12O
Structure:
Chemical Name:
Pyridine, 3-[3-(1-methylethoxy)androsta-5,16-dien-17-yl]-
CAS:
2484719-15-3
MF:
C27H37NO
Structure:
Chemical Name:
2-((2-naphthyloxy)methyl)-oxiran
CAS:
5234-06-0
MF:
C13H12O2
Chemical Name:
6-bromo-8-cyclopentyl-5-methyl-2-((5-(piperazin-1-yl)pyridin-2-yl)amino)pyrido[2,3-d]pyrimidin-7(8H)-one hydrochloride
Structure:
Chemical Name:
Acetamide, N-[2-[1-(3,4-diethoxyphenyl)-2-(methylsulfonyl)ethyl]-2,3-dihydro-1,3-dioxo-1H-isoindol-4-yl]-
CAS:
2448678-64-4
MF:
C23H26N2O7S
Structure:
Chemical Name:
2-(4-(2-(4-(1-(ethoxymethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoic acid
MF:
C27H35N3O3
Structure:
Chemical Name:
1,6-Naphthyridine-3-carboxamide, 4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-
CAS:
2084136-51-4
MF:
C21H20N4O3
Chemical Name:
Ritonavir EP Impurity LNO
Structure:
Chemical Name:
1,6-Naphthyridine-3-carboxamide, 4-(4-cyano-2-methoxyphenyl)-1,4-dihydro-5-methoxy-2,8-dimethyl-
CAS:
2640280-84-6
MF:
C20H20N4O3
Structure:
Chemical Name:
deoxyfructosazine
CAS:
17460-13-8
MF:
C12H20N2O7
Structure:
Chemical Name:
3-Hydroxy-4,5-dimethoxybenzoic acid
CAS:
1916-08-1
MF:
C9H10O5
Structure:
Chemical Name:
CYPERENONE
CAS:
3466-15-7
MF:
C15H22O
Chemical Name:
BOTRYTISCINEREA
CAS:
72882-27-0
Structure:
Chemical Name:
Chikusetsu saponin Ib
CAS:
59252-87-8
MF:
C47H74O18
Structure:
Chemical Name:
3,5-DIMETHYL 2-CHLORMETHYL PYRIDINE.HCL
CAS:
73590-93-9
MF:
C8H11Cl2N
Structure:
Chemical Name:
Cetirizine Amide
CAS:
83881-37-2
MF:
C21H26ClN3O2
Structure:
Chemical Name:
21-Acetoxy-11β-hydroxy-16α,17α-propylmethylenedioxpregna-1,4-diene-3,20-dione
CAS:
51333-05-2
MF:
C27H36O7
Structure:
Chemical Name:
Dihydro-FK506
CAS:
104987-30-6
MF:
C44H71NO12
Structure:
Chemical Name:
Dehydro Tizanidine
CAS:
125292-34-4
MF:
C9H6ClN5S
Structure:
Chemical Name:
α-Ribavirin (Ribavirin Impurity B)
CAS:
57198-02-4
MF:
C8H12N4O5
Structure:
Chemical Name:
1-(3-BroMopropyl)theobroMine
CAS:
6493-10-3
MF:
C10H13BrN4O2
Structure:
Chemical Name:
5-(5-Carboxy-2-ethoxyphenyl)-1-Methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyriMidin-7-one
CAS:
147676-78-6
MF:
C18H20N4O4
Structure:
Chemical Name:
FaMotidine Acid IMpurity Methyl Ester
CAS:
76824-14-1
MF:
C9H14N4O2S2
Structure:
Chemical Name:
SiMvastatin Hydroxy Acid Ethyl Ester
CAS:
864357-87-9
MF:
C27H44O6
Structure:
Chemical Name:
Atomoxetine Related Compound B (10 mg) (N-Methyl-3-phenyl-3-(m-tolyloxy)propan-1-amine hydrochloride)
CAS:
873310-28-2
MF:
C17H22ClNO
Structure:
Chemical Name:
(αR,δS)-4-Fluoro-N-(4-fluorophenyl)-δ-hydroxy-α-[(4-hydroxyphenyl)Methyl]benzenepentanaMide
CAS:
1197811-72-5
MF:
C24H23F2NO3
Structure:
Chemical Name:
Entacapone EP IMpurity I
CAS:
1364322-42-8
MF:
C13H12N2O6
Structure:
Chemical Name:
(S)-1-(2-Chloroacetyl)pyrrolidine-2-carboxaMide
CAS:
214398-99-9
MF:
C7H11ClN2O2
Structure:
Chemical Name:
5-Methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxylic acid hydrochloride
CAS:
720720-96-7
MF:
C8H11ClN2O2S
Structure:
Chemical Name:
(S)-2-((6-(3-aMinopiperidin-1-yl)-3-Methyl-2,4-dioxo-3,4-dihydropyriMidin-1(2H)-yl)Methyl)benzonitrile
CAS:
1353254-15-5
MF:
C18H25N3O2
Structure:
Chemical Name:
3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, 3-[2-[(3,3-diphenylpropyl)methylamino]-1,1-dimethylethyl] 5-propyl ester
CAS:
1797124-83-4
MF:
C38H45N3O6
Structure:
Chemical Name:
Sildenafil EP IMpurity D
CAS:
1357931-55-5
MF:
C17H20N4O5S
Structure:
Chemical Name:
TaMsulosin EP IMpurity D
CAS:
1799280-05-9
MF:
C19H26N2O5S