| Structure |
Chemical Name |
CAS |
MF |
 |
1,4'-Dimethyl-2'-propyl-2,5'-bi-1H-benzimidazole |
887583-89-3 |
C19H20N4 |
 |
Tetracyclics compound impurities |
|
|
 |
Urapidil Impurity |
770-42-3 |
C8H9BrFN.BrH |
 |
N'-(1-Methylazepan-4-yl)benzohydrazine |
117078-69-0 |
C14H22ClN3O |
|
|
Palbociclib Impurity 37 |
|
|
 |
Pazufloxacin Impurity 16 |
165071-10-3 |
C14H10FNO6 |
|
|
Pimecrolimus Impurity 4 |
|
|
|
|
Posaconazole Impurity 73 |
|
|
 |
3-アセチルオキシ-2-ブテン酸エチル |
29214-62-8 |
C8H12O4 |
 |
Rosuvastatin Impurity 90 |
2226413-62-1 |
C38H44F2N6O8S2 |
 |
2-(ブロモメチル)-2-(2,4-ジクロロフェニル)-1,3-ジオキソラン-4-メタノール |
68751-57-5 |
C11H11BrCl2O3 |
![2H-3-Benzazepin-2-one, 3-[3-[[[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl]methylamino]propyl]-1,3,4,5-tetrahydro-1-hydroxy-7,8-dimethoxy-](/CAS/20211123/GIF/2511244-96-3.gif) |
2H-3-Benzazepin-2-one, 3-[3-[[[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl]methylamino]propyl]-1,3,4,5-tetrahydro-1-hydroxy-7,8-dimethoxy- |
2511244-96-3 |
C27H36N2O6 |
|
|
Tofacitinib Impurity 110 |
|
|
|
|
Oseltamivir Impurity 91 |
|
|
|
|
Tofacitinib Impurity 115 |
|
|
|
|
Oseltamivir Impurity 80 |
|
|
|
|
Oseltamivir Impurity 72 |
|
|
|
|
Trelagliptin Impurity 27 |
|
|
 |
4(1H)-Quinazolinone, 6,8-dibromo-3-cyclohexyl-2,3-dihydro- |
2512203-87-9 |
C14H16Br2N2O |
 |
Linagliptin impurity KH-3 |
2279114-27-9 |
C30H37N7O6 |
 |
11β-ヒドロキシ-21-アセトキシプレグナ-1,4,16-トリエン-3,20-ジオン |
3044-42-6 |
C23H28O5 |
![1-[(1,1-ジメチルエチル)アミノ]-3-[[4-(4-モルホリニル)-1,2,5-チアジアゾール-3-イル]オキシ]-2-プロパノール?マレイン酸](/CAS/GIF/57073-55-9.gif) |
1-[(1,1-ジメチルエチル)アミノ]-3-[[4-(4-モルホリニル)-1,2,5-チアジアゾール-3-イル]オキシ]-2-プロパノール?マレイン酸 |
57073-55-9 |
C17H28N4O7S |
|
|
Ampicillin Impurity U |
|
|
|
|
Canagliflozin Hydroperoxide Impurity |
|
|
 |
(E)-2-hydroxy-4-(phenyldiazenyl)benzoic acid |
40038-46-8 |
C13H10N2O3 |
|
|
Sitagliptin EP Impurity 6 |
|
|
 |
Vonoprazan-005 |
2514735-09-0 |
C33H27F3N4 |
 |
D-erythro-Hexonic acid, 6-S-2-benzothiazolyl-2,4-dideoxy-6-thio-, 1,1-dimethylethyl ester |
1469771-46-7 |
C17H23NO4S2 |
|
|
(1R,2R,4S,5S,7s,9R)-9-butyl-7-(((S)-3-hydroxy-2-phenylpropanoyl)oxy)-9-methyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-9-ium bromide |
|
|
 |
1-Demethyl Hydroxy Daunomycinone |
58199-98-7 |
C20H16O9 |
 |
(S)-2-(butylsulfonamido)-3-(4-(4-(1-methylpiperidin-4-yl)butoxy)phenyl)propanoic acid |
1631053-75-2 |
C23H38N2O5S |
|
|
Loxoprofen Sodium Impurity 35 |
|
|
|
|
Dashatinib impurity 46 |
|
|
 |
（R，S）Nアセチル3，4ジメトキシフェニルアラニン |
27313-65-1 |
C13H17NO5 |
|
|
Oxytocin oxide impurity reference substance |
|
|
|
|
Troxipide Impurity 7 |
|
|
|
|
Bendamustine Impurity 37A |
|
|
|
|
Brivaracetam Impurity 50 |
|
|
|
|
6-Hydroxymoxifloxacin Impurities |
|
|
 |
Vildagliptin Impurity 30 |
918830-94-1 |
C10H17NO2 |
![N-methyl-N-((3R,4R)-4-methylpiperidin-3-yl)-7H-pyrrolo[2,3-d] pyrimidin-2-amine](/CAS/20200401/GIF/CB84908513.gif) |
N-methyl-N-((3R,4R)-4-methylpiperidin-3-yl)-7H-pyrrolo[2,3-d] pyrimidin-2-amine |
|
C13H19N5 |
 |
Tolvaptan Impurity 6 |
1432725-24-0 |
C18H19ClN2O2 |
|
|
Esmolol impurity B |
|
|
|
|
Esmolol impurity F |
|
|
|
|
Diquafosol Impurity E |
|
|
|
|
Bortezomib Impurity 39 |
|
|
 |
Linagliptin Dimer impurity (N-C-C-C Dimer)Q: What is
Linagliptin Dimer impurity (N-C-C-C Dimer) Q: What is the CAS Number of
Linagliptin Dimer impurity (N-C-C-C Dimer) |
2463617-49-2 |
C51H56N16O4 |
![Benzoic acid, 4-[(1,3-dihydro-1-hydroxy-2,1-benzoxaborol-5-yl)oxy]-](/CAS/20210111/GIF/906673-43-6.gif) |
Benzoic acid, 4-[(1,3-dihydro-1-hydroxy-2,1-benzoxaborol-5-yl)oxy]- |
906673-43-6 |
C14H11BO5 |
![1H-Purine-2,6-dione, 8-(3-amino-1-piperidinyl)-7-(3-chloro-2-buten-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-](/CAS/20210111/GIF/2138805-26-0.gif) |
1H-Purine-2,6-dione, 8-(3-amino-1-piperidinyl)-7-(3-chloro-2-buten-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]- |
2138805-26-0 |
C25H29ClN8O2 |
![1,3-Benzenedicarboxamide, 5-[acetyl(2,3-dihydroxypropyl)amino]-N1,N3-bis(2,3-dihydroxypropyl)-2,4-diiodo-](/CAS/20210111/GIF/1651211-78-7.gif) |
1,3-Benzenedicarboxamide, 5-[acetyl(2,3-dihydroxypropyl)amino]-N1,N3-bis(2,3-dihydroxypropyl)-2,4-diiodo- |
1651211-78-7 |
C19H27I2N3O9 |
|
|
(2S,3R,4R,5S,6R)-2-(4-chloro-3-(4-ethoxy-3-ethylbenzyl)phenyl)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol |
|
|
|
|
(E)-1-(4-(2-carboxyvinyl)benzyl)-1H-imidazole 3-oxide |
|
|
|
|
Vonoprazan Impurity B-2 |
|
|
 |
2-(Cyanomethylthio)acetic acid |
55817-29-3 |
C4H5NO2S |
|
|
Tofacitinib Impurity 82 |
|
|
|
|
Aztreonam Impurity 3 |
|
|
|
|
Aztreonam Impurity 9 |
|
|
|
|
Bendamustine Impurity 24 |
|
|
 |
Bosutinib Impurity 4 |
142072-71-7 |
C10H11NO4 |
|
|
Cefazolin EP Impurity L |
|
|
|
|
Cefoxitin Impurity 2 |
|
|
|
|
Clotrimazole Impurity 4 |
|
|
 |
Dasatinib impurity 29 |
1417651-54-7 |
C21H16Cl3N7OS |
 |
Erlotinib Impurity 58 |
2246399-22-2 |
C10H12N2O3 |
|
|
Lamivudine Impurity 4 |
|
|
|
|
Olaparib Impurity 37 |
|
|
|
|
Oseltamivir Impurity 3 |
|
|
 |
3-(3-Chloropropyl)-7,8-dimethoxy-2,3,4,5-tetrahydro-1H-3-benzazepin-2-one |
85175-65-1 |
C15H20ClNO3 |
 |
N-DesMethyl TelMisartan |
144701-81-5 |
C32H28N4O2 |
![N-De[2-(Methylsulfonyl)ethyl] Lapatinib](/CAS/GIF/697299-82-4.gif) |
N-De[2-(Methylsulfonyl)ethyl] Lapatinib |
697299-82-4 |
C26H20ClFN4O2 |
![N-[(3,4-DiMethoxy-2-pyridinyl)Methyl] Pantoprazole Sulfide](/CAS/GIF/957470-58-5.gif) |
N-[(3,4-DiMethoxy-2-pyridinyl)Methyl] Pantoprazole Sulfide |
957470-58-5 |
C24H24F2N4O5S |
 |
3-Oxo Rosuvastatin SodiuM Salt |
1346606-28-7 |
C22H26FN3O6S.Na |
![Famciclovir Related Compound A (20 mg) (2-[2-(2-Amino-9H-purin-9-yl)ethyl]propane-1,3-diol hydrochloride)](/CAS/20150408/GIF/246021-75-0.gif) |
Famciclovir Related Compound A (20 mg) (2-[2-(2-Amino-9H-purin-9-yl)ethyl]propane-1,3-diol hydrochloride) |
246021-75-0 |
C10H16ClN5O2 |
 |
Olopatadine USP RC B |
173174-07-7 |
C21H23NO4 |
![Ramipril Related Compound A (30 mg) ((2S,3aS,6aS)-1-[(S)2-[[(S)-1-(methoxycarbonyl)-3-phenylpropyl]amino]-1-oxopropyl]-octahydrocyclopenta[b]pyrrole-2-carboxylic acid)](/CAS/20180808/GIF/108313-11-7.gif) |
Ramipril Related Compound A (30 mg) ((2S,3aS,6aS)-1-[(S)2-[[(S)-1-(methoxycarbonyl)-3-phenylpropyl]amino]-1-oxopropyl]-octahydrocyclopenta[b]pyrrole-2-carboxylic acid) |
108313-11-7 |
C22H30N2O5 |
 |
4'-(Difluoromethoxy)acetanilide |
22236-11-9 |
C9H9F2NO2 |
![EthanediaMide, N1-(5-chloro-2-pyridinyl)-N2-[(1S,2S,4R)-4-[(diMethylaMino)carbonyl]-2-[[(4,5,6,7-tetrahydro-5-Methylthiazolo[5,4-c]pyridin-2-yl)carbonyl]aMino]cyclohexyl]-](/CAS/GIF/1255529-28-2.gif) |
EthanediaMide, N1-(5-chloro-2-pyridinyl)-N2-[(1S,2S,4R)-4-[(diMethylaMino)carbonyl]-2-[[(4,5,6,7-tetrahydro-5-Methylthiazolo[5,4-c]pyridin-2-yl)carbonyl]aMino]cyclohexyl]- |
1255529-28-2 |
C24H30ClN7O4S |
 |
N-carbaMoyl-2-Methyl benzene sulfonaMide |
39051-77-9 |
C8H10N2O3S |
 |
Capecitabin iMpurity |
71609-08-0 |
C9H12FN3O4 |
|
|
4-[[(2RS)-2-Hydroxy-3-(isopropylaMino)propyl]oxy]benzaldehydeHydrochloride (4-[(2RS)-2-Hydroxy-3-[(1-Methylethyl)aMino]propoxy]benzaldehydeHydrochloride) |
|
|
|
|
Ibuprofen IMp. I (EP): 1-(2-Methylpropyl)-4-[(3RS)-3-[4-(2-Methylpropyl)phenyl]butyl]benzene |
|
|
![3-Quinolinecarboxylic acid, 7-[(7S)-7-aMino-5-azaspiro[2.4]hept-5-yl]-8-chloro-6-fluoro-1-[(1R,2S)-2-fluorocyclopropyl]-1,4-dihydro-4-oxo-, hydrate](/CAS/GIF/163253-37-0.gif) |
3-Quinolinecarboxylic acid, 7-[(7S)-7-aMino-5-azaspiro[2.4]hept-5-yl]-8-chloro-6-fluoro-1-[(1R,2S)-2-fluorocyclopropyl]-1,4-dihydro-4-oxo-, hydrate |
163253-37-0 |
C19H20ClF2N3O4 |
 |
3-oxo-1,3-dihydroisobenzofuran-1-ylphosphonic acid |
61260-15-9 |
C10H11O5P |
![1-(4,8-bis-(2,2,2-trifluoroacetyl)-11-{4-[4,8,11-tris-(2,2,2-trifluoroacetyl)-1,4,8,11-tetraazacyclotetradec-1-ylMethyl]-benzyl}-1,4,8,11-tetraazacyclotetradec-1-yl)-2,2,2-trifluoroethanone](/CAS/GIF/406939-93-3.gif) |
1-(4,8-bis-(2,2,2-trifluoroacetyl)-11-{4-[4,8,11-tris-(2,2,2-trifluoroacetyl)-1,4,8,11-tetraazacyclotetradec-1-ylMethyl]-benzyl}-1,4,8,11-tetraazacyclotetradec-1-yl)-2,2,2-trifluoroethanone |
406939-93-3 |
C40H48F18N8O6 |
|
|
EMtricitabine iMpurity C |
|
|
|
|
RocuroniuMbroMide iMpurity F |
|
|
 |
Ribavirin IMpurity E |
58151-90-9 |
C15H16N4O6 |
![3-メトキシ-5,6,9,10,11,12-ヘキサヒドロ-11-メチル-4aH-ベンゾフロ[3a,3,2-ef][2]ベンゾアゼピン](/CAS/GIF/664995-65-7.gif) |
3-メトキシ-5,6,9,10,11,12-ヘキサヒドロ-11-メチル-4aH-ベンゾフロ[3a,3,2-ef][2]ベンゾアゼピン |
664995-65-7 |
C17H19NO2 |
 |
ジエチルカルバミン酸クロロメチル |
133217-92-2 |
C6H12ClNO2 |
 |
Tigecycline Metabolite M6 (9-AniMoMinocycline) |
149934-19-0 |
C23H28N4O7 |
 |
VerapaMil IMpurity G |
|
C27H38N2O4 |
|
|
(S)-4-(((R)-1-carboxy-2-((3-hydroxypropyl)thio)ethyl)amino)-3-hydroxy-4-oxobutanoic acid |
|
|
 |
(S)-dimethyl 2-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzamido)pentanedioate |
67676-60-2 |
C22H27ClN8O5 |
|
|
Furoxine GSK Open Ring Impurity |
|
|
|
|
Budesonide Impurity 31 |
|
|
|
|
Budesonide Impurity 23 |
|
|
 |
Hexanoic acid, 3-(chloromethyl)-, (3R)- |
2101641-90-9 |
C7H13ClO2 |
 |
Bisoprolol Impurity |
2226263-68-7 |
C18H31NO4 |
![2(1H)-Quinolinone, 5-[(1R)-1,2-dihydroxyethyl]-8-(phenylmethoxy)-](/CAS/20210111/GIF/1261219-83-3.gif) |
2(1H)-Quinolinone, 5-[(1R)-1,2-dihydroxyethyl]-8-(phenylmethoxy)- |
1261219-83-3 |
C18H17NO4 |
 |
Tofacitinib Impurity |
2504210-41-5 |
C29H38N10O2 |