Sign in |Join free
Keywords: 18162-48-6 , 872-50-4 , Methylene Chloride , naphthalene , THF , Titanium Dioxide

Chemical Products List

Pharmaceutical Impurity Reference Standards

ChemicalBookProduct Catalog Analytical Chemistry Standard Pharmaceutical Impurity Reference Standards
Click on the specific product, view the latest prices of the products, information, serving information
Structure Chemical Name CAS MF
8-HYDROXY MIRTAZAPINE 8-HYDROXY MIRTAZAPINE 102335-57-9 C17H19N3O
1-[2-Amino-1-(4-benzyloxyphenyl)-ethyl]-cyclohexanol 1-[2-Amino-1-(4-benzyloxyphenyl)-ethyl]-cyclohexanol 93413-61-7 C23H31NO2
16-Hydroxyerythromycin 16-Hydroxyerythromycin 82230-93-1 C37H67NO14
4-[1-(4-Chlorophenyl)-1-phenylethoxy]-1-methylhexahydro-1H-azepine 4-[1-(4-Chlorophenyl)-1-phenylethoxy]-1-methylhexahydro-1H-azepine 61771-18-4 C21H26ClNO
1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylic acid 3-isopropyl 5-(2-hydroxyethyl) ester 1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylic acid 3-isopropyl 5-(2-hydroxyethyl) ester 82219-47-4 C20H24N2O7
3-[(3-TRIFLUOROMETHYL)PHENYL]-1-PROPENE 3-[(3-TRIFLUOROMETHYL)PHENYL]-1-PROPENE 1813-96-3 C10H9F3
(AS)-A-(2-CHLOROPHENYL)-2,3,6,7-TETRAHYDRO-2-OXO-THIENO[3,2-C]PYRIDINE-5(4H)-ACETIC ACID METHYL ESTER (AS)-A-(2-CHLOROPHENYL)-2,3,6,7-TETRAHYDRO-2-OXO-THIENO[3,2-C]PYRIDINE-5(4H)-ACETIC ACID METHYL ESTER 527687-26-9 C16H16ClNO3S
1-(P-METHOXYPHENYL)-1-BUTEN-3-ONE 1-(P-METHOXYPHENYL)-1-BUTEN-3-ONE 943-88-4 C11H12O2
ANAGRELIDE IMPURITY 5 ANAGRELIDE IMPURITY 5 444904-63-6 C8H7Cl2N3
ANAGRELIDE IMPURITY 5 ANAGRELIDE IMPURITY 5 444904-63-6 C8H7Cl2N3
2-[2-(2-AMINO-9H-PURIN-9-YL)ETHYL]-1,3-PROPANEDIOL 2-[2-(2-AMINO-9H-PURIN-9-YL)ETHYL]-1,3-PROPANEDIOL 104227-86-3 C10H15N5O2
1,4,8,11-Tetrakis[(4-methylphenyl)sulfonyl]-1,4,8,11-tetraazacyclotetradecane 1,4,8,11-Tetrakis[(4-methylphenyl)sulfonyl]-1,4,8,11-tetraazacyclotetradecane 71089-74-2 C38H48N4O8S4
4-(2-Ethoxy benzamido)-1-methyl-3-n-propyl pyrazole-5-carboxamide. 4-(2-Ethoxy benzamido)-1-methyl-3-n-propyl pyrazole-5-carboxamide. 139756-03-9 C17H22N4O3
N-Hydroxy Riluzole N-Hydroxy Riluzole 179070-90-7 C8H5F3N2O2S
2-piperazine-4-amino-6,7-dimethoxyquinazoline Hydrochloride 2-piperazine-4-amino-6,7-dimethoxyquinazoline Hydrochloride 70843-11-7 C14H20ClN5O2
1-(3-Aminopropyl)aziridine 1-(3-Aminopropyl)aziridine 1072-65-7 C5H12N2
3,5-Di(4-pyridinyl)-1H-1,2,4-triazol-1-amine 3,5-Di(4-pyridinyl)-1H-1,2,4-triazol-1-amine 4923-06-2 C12H10N6
(1α,2β,4β,5α)-9-Methyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-7α-ol (1α,2β,4β,5α)-9-Methyl-3-oxa-9-azatricyclo[3.3.1.02,4]nonan-7α-ol 498-46-4 C8H13NO2
Benzonitrile, 2-[(3,4-dihydro-6-methoxy-3-methyl-2,4-dioxo-1(2H)-pyrimidinyl)methyl]- Benzonitrile, 2-[(3,4-dihydro-6-methoxy-3-methyl-2,4-dioxo-1(2H)-pyrimidinyl)methyl]- 2514763-78-9 C14H13N3O3
Benzonitrile, 2-[(3,4-dihydro-6-methoxy-3-methyl-2,4-dioxo-1(2H)-pyrimidinyl)methyl]- Benzonitrile, 2-[(3,4-dihydro-6-methoxy-3-methyl-2,4-dioxo-1(2H)-pyrimidinyl)methyl]- 2514763-78-9 C14H13N3O3
5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[(1E)-2-(4-methyl-5-thiazolyl)ethenyl]-8-oxo-7-[(2-phenylacetyl)amino]-, (4-methoxyphenyl)methyl ester, (6R,7R)- 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[(1E)-2-(4-methyl-5-thiazolyl)ethenyl]-8-oxo-7-[(2-phenylacetyl)amino]-, (4-methoxyphenyl)methyl ester, (6R,7R)- 104146-11-4 C29H27N3O5S2
Dapagliflozin Impurity 46 Dapagliflozin Impurity 46
Brexpiprazole Impurity ABCDEFGHJKL Brexpiprazole Impurity ABCDEFGHJKL
p,p'-(2-pyridylmethylene)bisphenol p,p'-(2-pyridylmethylene)bisphenol 603-41-8 C18H15NO2
N-Deshydroxyethyl Dasatinib N-Deshydroxyethyl Dasatinib 910297-51-7 C20H22ClN7OS
N-Desethyl Sunitinib N-Desethyl Sunitinib 356068-97-8 C20H23FN4O2
6-(4-{2-[5-(tert-Butyl-dimethyl-silanyloxy)-2-methylene-cyclohexylidene]-ethylidene}-7a-methyl-octahydro-inden-1-yl)-2-methyl-heptan-2-ol 6-(4-{2-[5-(tert-Butyl-dimethyl-silanyloxy)-2-methylene-cyclohexylidene]-ethylidene}-7a-methyl-octahydro-inden-1-yl)-2-methyl-heptan-2-ol 140710-90-3 C33H58O2Si
3-Hydroxy loratadine 3-Hydroxy loratadine 183483-15-0 C22H23ClN2O3
Dehydro Lacidipine Dehydro Lacidipine 130996-24-6 C26H31NO6
Granisetron Impurity F Granisetron Impurity F 1364914-39-5 C18H24N4O
Solifenacin N-Oxide Solifenacin N-Oxide 180272-28-0 C23H26N2O3
2-chloro-N-(4-ethoxyphenyl)-4-nitrobenzamide 2-chloro-N-(4-ethoxyphenyl)-4-nitrobenzamide 328258-90-8 C15H13ClN2O4
ACETAMINOPHEN IMPURITY B ACETAMINOPHEN IMPURITY B 1693-37-4 C9H11NO2
2-chloro-N-(3-chloro-2-methylphenyl)nicotinamide 2-chloro-N-(3-chloro-2-methylphenyl)nicotinamide 57841-61-9 C13H10Cl2N2O
(R)-3-Amino-3-phenylpropionic acid (R)-3-Amino-3-phenylpropionic acid 13921-90-9 C9H11NO2
Ambroxol EP Impurity B Ambroxol EP Impurity B 18683-95-9 C14H18Br2N2O
Allopurinol Related CoMpound F Allopurinol Related CoMpound F 321571-07-7 C12H14N4O4
N-[(n-butylaMino)carbonyl]-4-[(3-Methylphenyl)aMino]-3-pyridinesulfonaMide N-[(n-butylaMino)carbonyl]-4-[(3-Methylphenyl)aMino]-3-pyridinesulfonaMide 160972-33-8 C17H22N4O3S
(R)-N-DeMethyl Dapoxetine (R)-N-DeMethyl Dapoxetine 1202160-36-8 C20H21NO
14,15-Dehydro Budesonide 14,15-Dehydro Budesonide 131918-64-4 C25H32O6
2-(BenzylMethylaMino)-3',4'-dihydroxyacetophenone 2-(BenzylMethylaMino)-3',4'-dihydroxyacetophenone 36467-25-1 C16H17NO3
2'-O-(5'-Deoxy-β-D-ribofuranosyl) Capecitabine 2'-O-(5'-Deoxy-β-D-ribofuranosyl) Capecitabine 1262133-66-3 C20H30FN3O9
4-Defluoro-4-hydroxy Gefitinib 4-Defluoro-4-hydroxy Gefitinib 847949-50-2 C22H25ClN4O4
Desethyl Sildenafil Desethyl Sildenafil 139755-91-2 C20H26N6O4S
N-Desisopropyl-N-forMyl Bisoprolol N-Desisopropyl-N-forMyl Bisoprolol 1346602-59-2 C16H25NO5
N-DesMethyl Olopatadine N-DesMethyl Olopatadine 113835-92-0 C20H21NO3
10-Keto DextroMethorphan 10-Keto DextroMethorphan 57969-05-8 C18H23NO2
2'-[(1H-Tetrazol-5-yl)biphenyl-4-yl]Methanol 2'-[(1H-Tetrazol-5-yl)biphenyl-4-yl]Methanol 160514-13-6 C14H12N4O
ent-Paroxol ent-Paroxol 389573-45-9 C13H18FNO
Ethyl α-Thioglucopyranoside Ethyl α-Thioglucopyranoside 13533-58-9 C8H16O5S
Febuxostat Acyl-β-D-glucuronide Febuxostat Acyl-β-D-glucuronide 1351692-92-6 C22H24N2O9S
Keto Bisoprolol Keto Bisoprolol 864544-37-6 C18H29NO5
Olopatadine Carbaldehyde DISCONTINUED Olopatadine Carbaldehyde DISCONTINUED 1376615-97-2 C21H23NO2
5-Chloro-1-methyl-4-nitroimidazole 5-Chloro-1-methyl-4-nitroimidazole C4H4ClN3O2
1-Propanol,3-[(1,1-dimethylethyl)amino]-2-[[4-(4-morpholinyl)-1,2,5-thiadiazol-3-yl]-oxy]- 1-Propanol,3-[(1,1-dimethylethyl)amino]-2-[[4-(4-morpholinyl)-1,2,5-thiadiazol-3-yl]-oxy]- 59697-06-2 C13H24N4O3S
Anagrelide impurity 4 Anagrelide impurity 4 1092352-99-2 C10H6Cl3N3O
Anagrelide impurity 4 Anagrelide impurity 4 1092352-99-2 C10H6Cl3N3O
rac Cetirizine N-Oxide > 70% by HPLC (Mixture of Diastereomers) rac Cetirizine N-Oxide > 70% by HPLC (Mixture of Diastereomers) 1076199-80-8 C21H25ClN2O4
(S)-N-Didemethyl Dapoxetine (S)-N-Didemethyl Dapoxetine 147199-40-4 C19H19NO
Hydroxy Flunarizine Hydroxy Flunarizine 87166-81-2 C26H26F2N2O
1-METHYL-4-NITRO-3-PROPYL-1H-PYRAZOLE-5-CARBOXYLIC ACID 1-METHYL-4-NITRO-3-PROPYL-1H-PYRAZOLE-5-CARBOXYLIC ACID 139756-00-6 C8H11N3O4
6-Hydroxy Nicorandil 6-Hydroxy Nicorandil 113743-17-2 C8H9N3O5
trans-Itraconazole trans-Itraconazole 252964-65-1 C35H38Cl2N8O4
N-(2-Pyridyl)oxamic Acid N-(2-Pyridyl)oxamic Acid 13120-39-3 C7H6N2O3
(trans)-4-Propyl-1-methyl-L-proline (trans)-4-Propyl-1-methyl-L-proline 13380-36-4 C9H17NO2
N-Nordextromethorphan N-Nordextromethorphan 1531-23-3 C17H23NO
(S,S,R,R)-Orlistat (S,S,R,R)-Orlistat 111466-62-7 C29H53NO5
17β-Carboxy-17-desoxy Dexamethasone 17β-Carboxy-17-desoxy Dexamethasone 75262-69-0 C21H27FO4
1-(dimethoxymethyl)-3-methoxybenzene 1-(dimethoxymethyl)-3-methoxybenzene 59276-28-7 C10H14O3
Benazepril impurity A Benazepril impurity A C24H28N2O5
3S,4R-4-[phenyl-1-methylpiperidinyl] methanol 3S,4R-4-[phenyl-1-methylpiperidinyl] methanol 176022-03-0 C13H19NO
Nisoldipine Related Compound II Nisoldipine Related Compound II
5-Chloro-N1-Methylbenzene-1,2-diaMine 5-Chloro-N1-Methylbenzene-1,2-diaMine 84859-27-8 C7H9ClN2
(1'S,3'S,4'S)-Entecavir IsoMer (1'S,3'S,4'S)-Entecavir IsoMer 1367369-80-9 C12H15N5O3
Iso Ganciclovir Iso Ganciclovir 86357-09-7 C9H13N5O4
(1S,3R)-1-Benzo[1,3]dioxol-5-yl-2-(2-chloro-acetyl)-2,3,4,9-tetrahydro-1H-b-carboline-3-carboxylic Acid Methyl Ester (1S,3R)-1-Benzo[1,3]dioxol-5-yl-2-(2-chloro-acetyl)-2,3,4,9-tetrahydro-1H-b-carboline-3-carboxylic Acid Methyl Ester 629652-40-0 C22H19ClN2O5
2-Butyl-1,6-dihydro-N,N,4-trimethyl-6-oxo-1-[[2'-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-5-pyrimidineacetamide 2-Butyl-1,6-dihydro-N,N,4-trimethyl-6-oxo-1-[[2'-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-5-pyrimidineacetamide 503155-67-7 C46H45N7O2
O-De(3-fluorobenzyl) Lapatinib O-De(3-fluorobenzyl) Lapatinib 1268997-70-1 C22H21ClN4O4S
5-Des[2-(tert-butylaMino)] BaMbuterol-5-ethylenediol 5-Des[2-(tert-butylaMino)] BaMbuterol-5-ethylenediol 112935-92-9 C14H20N2O6
Desloratadine Epoxide Desloratadine Epoxide 1346604-23-6 C19H19ClN2O
Zolmitriptan Related Compound B (20 mg) ((S)-2-Amino-3-{3-[2-(dimethylamino)ethyl]-1H-indol-5-yl}propan-1-ol) Zolmitriptan Related Compound B (20 mg) ((S)-2-Amino-3-{3-[2-(dimethylamino)ethyl]-1H-indol-5-yl}propan-1-ol) 139264-69-0 C15H23N3O
1-BENZYL-N,4-DIMETHYLPIPERIDIN-3-AMINE DIHYDROCHLORIDE 1-BENZYL-N,4-DIMETHYLPIPERIDIN-3-AMINE DIHYDROCHLORIDE 384338-23-2 C14H22N2
(R,Z)-2-((R)-((Z)-2-(2-aMinothiazol-4-yl)-2-(hydroxyiMino)acetaMido)(carboxy)Methyl)-5-ethylidene-5,6-dihydro-2H-1,3-thiazine-4-carboxylic acid (R,Z)-2-((R)-((Z)-2-(2-aMinothiazol-4-yl)-2-(hydroxyiMino)acetaMido)(carboxy)Methyl)-5-ethylidene-5,6-dihydro-2H-1,3-thiazine-4-carboxylic acid 178422-39-4 C14H15N5O6S2
Acyclovir IMpurity C Acyclovir IMpurity C 91702-61-3 C8H11N5O3
Nicergoline-5-Chloro Analogue Nicergoline-5-Chloro Analogue 38536-28-6 C24H26ClN3O3
1-(3-aMino-5-(benzyloxy)-2-hydroxyphenyl)ethanone 1-(3-aMino-5-(benzyloxy)-2-hydroxyphenyl)ethanone 861841-90-9 C15H15NO3
(2RS)-2-Hydroxy-2-[4-(2-Methylpropyl)phenyl]propanoic Acid (2RS)-2-Hydroxy-2-[4-(2-Methylpropyl)phenyl]propanoic Acid C13H18O3
(3RS)-1,3-Bis[4-(2-Methylpropyl) phenyl]butan-1-one (3RS)-1,3-Bis[4-(2-Methylpropyl) phenyl]butan-1-one C24H32O
2-[4-(2-Methylpropyl)phenyl] ethanol 2-[4-(2-Methylpropyl)phenyl] ethanol 2143535-25-3 C24H32O
1-cyclopropyl-6-fluoro-8-hydroxy-4-oxo-7-((4aR,7aR)-tetrahydro-1H-pyrrolo[3,4-b]pyridin-6(2H,7H,7aH)-yl)-1,4-dihydroquinoline-3-carboxylic acid hydrobroMide 1-cyclopropyl-6-fluoro-8-hydroxy-4-oxo-7-((4aR,7aR)-tetrahydro-1H-pyrrolo[3,4-b]pyridin-6(2H,7H,7aH)-yl)-1,4-dihydroquinoline-3-carboxylic acid hydrobroMide 1292904-74-5 C20H23BrFN3O4
IMp. K (EP) IMp. K (EP) 40610-41-1 C13H17NO3
(Z)-Methyl 3-((2'-(N'-hydroxycarbaMiMidoyl)biphenyl-4-yl)Methyl)-2-oxo-2,3-dihydro-1H-benzo[d]iMidazole-4-carboxylate (Z)-Methyl 3-((2'-(N'-hydroxycarbaMiMidoyl)biphenyl-4-yl)Methyl)-2-oxo-2,3-dihydro-1H-benzo[d]iMidazole-4-carboxylate 1499167-72-4 C23H20N4O4
4-(4-fluorobenzoyl)-3-(hydroxyMethyl)benzonitrile 4-(4-fluorobenzoyl)-3-(hydroxyMethyl)benzonitrile 260371-16-2 C15H10FNO2
ATV-FX1 sodiuM salt ATV-FX1 sodiuM salt 1315629-79-8 C33H34FN2NaO7
Montelukast Impurity H Montelukast Impurity H 851755-56-1 C34H32ClNO4S
SalMeterol EP IMpurity F SalMeterol EP IMpurity F 1391054-40-2 C25H37NO3
[6-Hydroxy-2-(4-hydroxyphenyl)benzo[b]thiophen-7-yl] [6-Hydroxy-2-(4-hydroxyphenyl)benzo[b]thiophen-7-yl] 1391054-73-1 C28H27NO4S
(R)-α-Methyl-N-[3-[3-(trifluoroMethyl)phenyl]Methyl]-1-naphthaleneMethaneaMine Hydrochloride (R)-α-Methyl-N-[3-[3-(trifluoroMethyl)phenyl]Methyl]-1-naphthaleneMethaneaMine Hydrochloride 1229225-42-6 C20H19ClF3N
3(S)-Hydroperoxy Simvastatin 3(S)-Hydroperoxy Simvastatin 1092716-44-3 C25H38O7
2(RS)-4-Methyl-1-(3-Methylpyridin-2-yl)-2-phenylpiperazine 2(RS)-4-Methyl-1-(3-Methylpyridin-2-yl)-2-phenylpiperazine 191546-94-8 C17H21N3
HomePage | Member Companies | Advertising | Contact us | Previous WebSite | MSDS | CAS Index | CAS DataBase
Copyright © 2016 ChemicalBook All rights reserved.