T-Butyl Derivative Abacavir / Abacavir Impurity F
6-(Cyclopropylamino)-9-[(1R,4S)-4-[[(1,1-dimethylethyl)oxy]methyl]cyclopent-2-enyl]-9H-purine-2-amine; O-t-Butyl Derivative Abacavir (USP) ;Abacavir t-Butyl EtherCatalogue No : VL760003CAS No : NA
3-Hydroxy abacavir
(1R,2R,4S)-2-(2-amino-6-(cyclopropylamino)-9H-purin-9-yl)-4-(hydroxymethyl)cyclopentanol Catalogue No : VL760008
Abacavir Impurity D (ABCRC-8) / trans-Abacavir Dihydrochloride / Abacavir EP Impurity D
(1R,4R)-4-[2-Amino-6-(cyclopropylamino)-9H-purin-9-yl]cyclopent-2-enyl]methanol dihydrochlorideCatalogue No : VL760005CAS No : CAS No. 783292-37-5 (free base) / CAS NO: 267668-71-3(SALT)
N6‐cyclopropyl‐9H‐purine‐2,6‐diamine ; 2-Amino-6-cyclopropylamino-9H-purine MethanolateCatalogue No : VL760002CAS No : 120503-69-7
(1S,4R)-4-(2,6-Diamino-9H-purin-9-yl)ethanol Catalogue No : VL760006CAS No : 124752-25-6
Abacavir O-Pyrimidine Impurity / Abacavir EP Impurity B / Abacavir Related Compound D
6-(Cyclopropylamino)-9-[(1R,4S)-4-[[(2,5-diamino-6-chloropyrimidin-4-yl)oxy]methyl]cyclopent-2-enyl]-9H-purine-2-amineCatalogue No : VL760001CAS No : 1443421-69-9
Abiraterone N-Oxide
(3β)-17-(3-Pyridinyl)androsta-5,16-dien-3-ol Acetate (Ester) N-
OxideCatalogue No : VL830002
(3β)-3-(Acetyloxy)pregna-5,16-dien-20-one; 3β-Hydroxypregna-5,16-dien-20-one Acetate; (-)-16-Dehydropregnenolone Acetate; 16,17-Didehydropregnenolone Acetate; 16-DPA; 16-Dehydropregnenolone-3β-acetate; 20-Oxopregna-5,16-dien-3β-yl Acetate; 3β-Acetoxypregna-5,16-dien-20-one; 3β-Acetyloxy-pregnCatalogue No : VL830004CAS No : 979-02-2
3β-Hydroxy-pregna-5,16-dien-20-one Acetate Oxime; 3β-Hydroxy-pregna-5,16-dien-20-one Oxime Acetate (Ester); NSC 224249; (3β)-3-(Acetyloxy)-pregna-5,16-dien-20-one 20-Oxime, Abiraterone Related Compound 3Catalogue No : VL830003CAS No : 2174-13-2
7-Keto Abiraterone Acetate
(3S,8R,9S,10R,13S,14S)-10,13-Dimethyl-7-oxo-17-(pyridin-3-yl)-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl AcetateCatalogue No : VL830001
2-(2-(2,6-dichlorophenylamino)phenyl)sodium acetateCatalogue No : VL284007
[[[[[2-[(2,6-Dichlorophenyl)amino]phenyl]
acetyl]oxy]acetyl]oxy]acetic acidCatalogue No : VL284009CAS No : 1215709-75-3
Aceclofenac EP Impurity F
Benzyl [[[2-[(2,6-dichlorophenyl)amino]phenyl] acetyl]oxy]acetate Catalogue No : VL284001CAS No : 100499-89-6
Aceclofenac EP Impurity D
Methyl [[[2-[(2,6-dichlorophenyl)amino]phenyl] acetyl]oxy]acetateCatalogue No : VL284002CAS No : 139272-66-5
Aceclofenac EP Impurity E
Ethyl [[[2-[(2,6-dichlorophenyl) amino] phenyl] acetyl] oxy] acetateCatalogue No : VL284003CAS No : 139272-67-6
Aceclofenac Impurity I
1-(2,6-Dichlorophenyl)-1,3-dihydro-2H-indol-2-oneCatalogue No : VL284004CAS No : 15362-40-0
Methyl [2-[(2,6-dichlorophenyl)amino]phenyl]acetateCatalogue No : VL284005CAS No : 15307-78-5
[[[[[[[2-[(2,6-Dichlorophenyl)amino]phenyl]acetyl]oxy]acetyl]
oxy]acetyl]oxy]acetic acidCatalogue No : VL284008
Ethyl [2-[(2,6-dichlorophenyl)amino]phenyl]acetateCatalogue No : VL284006
4-Hydroxy-2H-1-benzopyran-2-one; 4-Coumarinol; 4-Hydroxy-2H-1-benzopyran-2-one; 4-Hydroxy-2H-benzo[b]pyran-2-oneCatalogue No : VL2320001CAS No : 1076-38-6
Acetazolamide EP Impurity D
5-Amino-1,3,4-thiadiazole-2-sulfonamide HClCatalogue No : VL11005
Acetazolamide Impurity F
N-[5-[(5-Acetamido-1,3,4-thiadiazol-2-yl)sulfonyl]sulfamoyl-1,3,4-
thiadiazol-2-yl]acetamideCatalogue No : VL11007
5-acetamido-1,3,4-thiadiazole-2-sulfonic acidCatalogue No : VL11002CAS No : 827026-60-8
N-(5-chloro-1,3,4-thiadiazol-2-yl)acetamideCatalogue No : VL11001CAS No : 60320-32-3
N-(1,3,4-thiadiazol-2-yl)acetamideCatalogue No : VL11003CAS No : 5393-55-5
2-Acetylamino-5-mercapto-1,3,4 thiadiazoleCatalogue No : VL11004CAS No : 32873-56-6
Acetazolamide Impurity G
5-amino-1,3,4-thiadiazole-2-thiolCatalogue No : VL11006
Acetazolamide Disulphide Impurity
N,N’-[Dithiobis(1,3,4-thiadiazole-5,2-diyl)]bisacetamideCatalogue No : VL11008
L-Cystine; 3,3-Dithiobis(2-aminopropanoic AcidCatalogue No : VL1350001CAS No : 56-89-3
N,S-Diacetyl-L-cysteine ; N-Acetylcysteine S-AcetateCatalogue No : VL1350004CAS No : 18725-37-6
L-Cysteine or (R)-2-Amino-3-mercaptopropionic acidCatalogue No : VL1350002CAS No : 52-90-4
N,N-Diacetyl-L-cystineCatalogue No : VL1350003CAS No : 05545-17-5
Acyclovir Impurity P
2-amino-9-(2-hydroxyethyl)-1H-purin-6(9H)-oneCatalogue No : VL13012
Acyclovir Impurity L
N-(9-acetyl-6-oxo-6, 9-dihydro-1H-purin-2-yl) acetamideCatalogue No : VL13013
Acyclovir Impurity A / O-Acetyl Acyclovir
2-((2-amino-6-oxo-1H-purin-9(6H)-yl) methoxy) ethyl acetateCatalogue No : VL13001
Acyclovir EP Impurity C / Acyclovir N7-Isomer
2-Amino-7-[(2-hydroxyethoxy) methyl]-1,7-dihydro-6H-purin-6-one; N7-[(2-
Hydroxyethoxy)methyl)guanineCatalogue No : VL13006
Acyclovir EP Impurity F / N2-Acetyl Acyclovir
N-[6,9-Dihydro-9-[(2-hydroxyethoxy)methyl]-6-oxo-1H-purin-2-yl]acetamide; 9-[(2-Hydroxyethoxy)methyl]-N2-acetylguanineCatalogue No : VL13007
Acyclovir Impurity J / Dimer Acyclovir
9,9-((ethane-1,2-diylbis(oxy))bis(methylene))bis(2-amino-1H-purin-6(9H)-oneCatalogue No : VL13004
Acyclovir Impurity K
2,2-(methylenebis(azanediyl))bis(9-((2-hydroxyethoxy)methyl)-1H-purin-6(9H)-
one)Catalogue No : VL13005
Acyclovir Impurity M
2-[(2-acetamido-6-oxo-6,7-dihydro-1H-purin-7-yl)methoxy]ethyl acetateCatalogue No : VL13016CAS No : 91702-60-2
Acyclovir Impurity I
9,7-[1,2-Ethanediylbis(oxymethylene)]bisguaniney ICatalogue No : VL13020
2-((2-amino-6-oxo-3H-purin-9(6H)-yl)methoxy)ethyl benzoate;2-[(2-Amino-6-oxo-3,6-dihydro-9H-purin-9-yl)methoxy]ethyl benzoateCatalogue No : VL13021CAS No : 59277-91-7
2-((2-acetamido-6-oxo-1H-purin-9(6H)-yl)methoxy)ethyl benzoate; N-[9-[[2-(Benzoyloxy)ethoxy]methyl]-6,9-dihydro-6-oxo-1H-purin-2-yl]-acetamideCatalogue No : VL13022CAS No : 133186-23-9
6-amino-9-[(2-hydroxyethoxy)methyl]-2,9-dihydro-1H-purin-2-oneCatalogue No : VL13024CAS No : 374697-95-7
Acyclovir 9-Acetyl Impurity / Diacetyl Acyclovir / Acyclovir Impurity G
2-((2-acetamido-6-hydroxy-9H-purin-9-yl) methoxy) ethyl acetateCatalogue No : VL13011
Acyclovir Impurity B
2-amino-1H-purin-6(9H)-oneCatalogue No : VL13014
7-Acyclovir Impurity
2-amino-7-((2-hydroxyethoxy)methyl)-3H-purin-6(7H)-oneCatalogue No : VL13002
1-Bromo-3-methyl-tricyclo[3.3.1.13,7]decane; 1-Bromo-3-methyl-adamantane; 1-Methyl-3-bromoadamantaneCatalogue No : VL2290001CAS No : 702-77-2
1-Bromo-3-ethyladamantane; 1-Bromo-3-ethyltricyclo[3.3.1.13,7]decaneCatalogue No : VL2290002CAS No : 878-61-5
Catalogue No : VL1840001CAS No : 178677-39-9
5-(Propylsulphonyl)-1Hbenzimidazol-2-amineCatalogue No : VL960004CAS No : 80983-34-2
Albendazole Impurity H / Fenbendazole EP Impurity B / Fenbendazole USP RC B / Albendazole 5-Chloro Analog
Methyl (5-chloro-1H-benzimidazol-2-yl)carbamateCatalogue No : VL960014
Albendazole EP Impurity K
Methyl (6-(butylthio)-1H-benzo(d)imidazole-2-yl)carbamateCatalogue No : VL960010
Albendazole EP Impurity L
Methyl(6-(isoproylthio)-1H-benzo(d)imidazole-2-yl)carbamateCatalogue No : VL960011
5-(Propylsulphanyl)-1H-benzimidazol-2-amine; Desmethoxycarbonyl Albendazole.Catalogue No : VL960001CAS No : 80983-36-4
Methyl[5-Propylsulphonyl)-1H-benzimidazol-2-yl]carbamateCatalogue No : VL960003CAS No : 75184-71-3
Methyl (1H-benzimidazol-2-yl)carbamateCatalogue No : VL960005CAS No : 10605-21-7
Methyl [[]5-(methylsulphanyl)-1H-benzimidazol-2-yl]carbamate;Catalogue No : VL960006CAS No : 80983-45-5
Methyl[5-Propylsulphonyl)-1H-benzimidazol-2-yl]carbamate; Albendazole OxideCatalogue No : VL960002CAS No : 54029-12-8
Albendazole EP Impurity I
Methyl(6-propoxy-1H-benzo[d]imidazole-2-yl) carbamate Catalogue No : VL960012
Albendazole EP Impurity J
Methyl (4,6-dichloro-1H beno(d)imidazole-2-yl)carbamateCatalogue No : VL960013
2chloro-6,7-dimethoxyquinazolin-4-amineCatalogue No : VL259008CAS No : 23680-84-4
(RS)-N-[3-[(4-Amino-6,7-dimethoxyquinazolin-2-yl)amino]propyl]-N-methyltetrahydrofuran-2-carboxamide hydrochloride Catalogue No : VL259009CAS No : 72104-34-8
Alfuzosin EP Impurity G
N2-(3-(4-amino-6,7-dimethoxyquinazolin-2-ylamino)propyl)-6,7-dimethoxy-N2-
methylquinazoline-2,4-diamineCatalogue No : VL259010
N-[3-[(4-Amino-6,7-dimethoxyquinazolin-2-yl)(methyl)amino]propyl]furan-2-
carboxamide hydrochlorideCatalogue No : VL259002CAS No : 98902-29-5
N-(3-((4-amino-6, 7-dimethoxyquinazolin-2- yl) (methyl) amino) propyl) tetrahydrofuran-2-carboxamide.Catalogue No : VL259001CAS No : 821-48-7
N-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-N-methylpropane-1,3-diamine
hydrochlorideCatalogue No : VL259003CAS No : 81403-69-2
N-[3-[(4-Amino-6,7-dimethoxyquinazolin-2-yl)(methyl)amino]propyl]formamide
hydrochlorideCatalogue No : VL259004CAS No : 1026411-59-5
Alfuzosin Impurity F
N-(3-(((4-amino-6, 7-dihydroxyquinazolin-2-yl) methyl) (methyl) amino) propyl)
tetrahydrofuran-2-carboxamideCatalogue No : VL259005
(E/Z)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-Pyrazole-4-carboxylic Acid Ethyl EsterCatalogue No : VL1430001CAS No : 321571-07-7
N-(4H-1, 2, 4-Triazol-4-yl) 1H-pyrazole-4-carboxamide
Catalogue No : VL1430003 CAS No : 1346604-13-4
Almotriptan Impurity A / Almotriptan Related Compound A
{3-[2-(dimethylamino)-ethyl]-5-[(pyrrolidin-1-yl-sulfonyl)methyl]-1H-indol-1-yl}-
methanolCatalogue No : VL264001
Almotriptan Impurity B / Almotriptan Related Compound B
2-{5-[(pyrrolidin-1-yl-sulfonyl)-methyl]-1H-indol-3-yl}-ethanamineCatalogue No : VL264002
Almotriptan Impurity C / Almotriptan N- Oxide
N,N-dimethyl-2-(5-{[(pyrrolidin-1-yl)sulfonyl]methyl}-1H-indol-3-yl)-ethanamine-N-oxide.MalateCatalogue No : VL264003
Alosetron HCL Impurity D
2,5-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indol-1-oneCatalogue No : VL1730001
Ambroxol EP Impurity A
(2-amino-3,5-dibromophenyl)methanolCatalogue No : VL219001
trans-4-(6,8-dibromo-1,4-dihydroquinazolin-3(2H)-yl)cyclohexanolCatalogue No : VL219002CAS No : 50910-53-7
Ambroxol EP Impurity C
trans-4-{[(E)-(2-amino-3,5-dibromophenyl)methylidene
]amino}cyclohexanolCatalogue No : VL219003
cis-4-[(2-Amino-3,5-dibromobenzyl)amino]cyclohexanol HClCatalogue No : VL219004CAS No : 107814-37-9
Ambroxol EP Impurity E
2-amino-3,5dibromobenzaldehydeCatalogue No : VL219005
(2-Butylbenzofuran-3-yl)[4-[2-(diethylamino) ethoxy]phenyl]methanone hydrochloride Catalogue No : VL1390001CAS No : 23551-25-9
(2-Butylbenzofuran-3-yl)[4-[2-(ethylamino)ethoxy]-3,5-diiodophenyl]methanone hydrochlorideCatalogue No : VL1390002CAS No : 96027-74-6
(2-Butylbenzofuran-3-yl)[4-[2-(diethylamino)ethoxy]-3-iodophenyl]methanone hydrochlorideCatalogue No : VL1390003CAS No : 85642-08-6
2-Butyl-3-(3,5-diiodo-4-hydroxybenzoyl)benzofuranCatalogue No : VL1390005CAS No : 1951-26-4
(2-Butylbenzofuran-3-yl)(4-hydroxyphenyl)methanoneCatalogue No : VL1390006CAS No : 52490-15-0
(2-Butylbenzofuran-3-yl)(4-hydroxy-3-iodophenyl)methanone Catalogue No : VL1390004CAS No : 147030-50-0
[2-[(1RS)-1-Methoxybutyl]benzofuran-3-yl][4-[2-(diethylamino)ethoxy]-3,5-diiodophenyl] methanoneCatalogue No : VL1390007CAS No : 1087223-70-8
2-Chloro-N,N-diethylethylamine hydrochlorideCatalogue No : VL1390008CAS No : 869-24-9
Amlodipine Related Compound C / Amlodipine EP Impurity G
(Dimethyl 4-(2-chlorophenyl)chlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate)Catalogue No : VL19003
Amlodipine Related Compound D/Amlodipine EP Impurity A
3-Ethyl-5-Methyl-(4RS)-4-(2-Chloophenyl)-2-[[2-(1,3-Dioxo-1,3-Dihydro-2HIsoindol-2-yl)Ethoxy)methyl]-6-Methyl-1,4-Dihydropyridine-3,5-Dicarboxylate
Catalogue No : VL19004
Amlodipine Related Compound B / Amlodipine EP Impurity B
4-(2-Chlorophenyl)-1,4-dihydro-2-methyl-6-[[2-[[2-[(methylamino)carbonyl] benzoyl] amino]ethoxy]methyl]-5-pyridine dicarboxylic Acid 5-Ethyl 3-Methyl EsterCatalogue No : VL19002
Amlodipine Related Compound A / Amlodipine EP Impurity D
2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-6-methyl-3,5-pyridinedicarboxylic Acid 3-Ethyl 5-Methyl EsterCatalogue No : VL19001CAS No : 88150-62-3
Amlodipine Related Compound F / Amlodipine EP Impurity F
2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic Acid 3,5-dimethyl EsterCatalogue No : VL19006
Amlodipine Impurity 18
2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-1,4-dihydro-6-methylpyridine-3,5-
dicarboxylic acidCatalogue No : VL19009
Amlodipine Related Compound H / Amlodipine Related EP Impurity H
2-[[2-[(2-Carboxybenzoyl)amino]ethoxy]methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic Acid 3-Ethyl 5-Methyl EsterCatalogue No : VL19007
Amlodipine Related Compound E / Amlodipine EP Imurity E
2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic Acid 3,5-Diethyl EsterCatalogue No : VL19005
Amoxicillin EP Impurity I / Amoxicillin USP Related Compound I
(2R)-2-Amino-2-(4-hydroxyphenyl)acetic acidCatalogue No : VL1970009
(2S,5R,6R)-6-Amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acidCatalogue No : VL1970001CAS No : 551-16-6
6-[2-Amino-2-(p-hydroxyphenyl)acetamido]-3,3-dimethyl-7-oxo-4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic AcidCatalogue No : VL1970003CAS No : 26889-93-0
(4S)-2-[5-(4-Hydroxyphenyl)-3,6-dioxopiperazin-2-yl]-5,5-dimethylthiazolidine-4-carboxylic Acid (Amoxicillin Diketopiperazines)Catalogue No : VL1970004CAS No : 94659-47-9
(4S)-2-[[[(2R)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino]carboxymethyl]-5,5-dimethylthiazolidine-4-carboxylic Acid Sodium Salt (Penicilloic Acids of Amoxicillin Sodium Salt)Catalogue No : VL1970002CAS No : 68728-47-2
3-(4-hydroxyphenyl)pyrazin-2-olCatalogue No : VL1970006CAS No : 126247-63-0
(2S,5R,6R)-6-[[(2R)-2-[[(2R)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid ;Catalogue No : VL1970007CAS No : 188112-75-6
(2R)-2-[(2,2-Dimethylpropanoyl)amino]-2-(4-hydroxyphenyl)acetic acidCatalogue No : VL1970008CAS No : 205826-86-4
(2R)-2-[(2,2-Dimethylpropanoyl)amino]-2-(4-hydroxyphenyl)acetic acidCatalogue No : VL1970010CAS No : 205826-86-4
ANAMICA(O-FLUORO NITROBENZENE)
1-Fluoro-2-nitrobenzeneCatalogue No : VL246001CAS No : 1493-27-2
Apixaban Carboxylic Acid Impurity
4,5,6,7-Tetrahydro-1-(4-methoxyphenyl)-7-oxo-6-[4-(2-oxo-1-
piperidinyl) phenyl]-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acidCatalogue No : VL3170001
Aprepitant Related Compound A
3-[[(2R,3R)-2-[(R)-1-[3,5-Bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluoro
phenyl)morpholino]methyl]-1H-1,2,4-triazol-5(4H)-oneCatalogue No : VL1110001
Aprepitant Related Compound B
3-[[(2R,3R)-2-[(R)-1-[3,5-Bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluoro
phenyl)morpholino]methyl]-1H-1,2,4-triazol-5(4H)-oneCatalogue No : VL1110002
7-Hydroxy-3,4-dihydroquinolin-2(1H)-oneCatalogue No : VL197010
Aripiprazole Diquinoline Butanediol Impurity
1,4-bis[(3,4-Dihydro-2(1H)-quinolinone-7-yl)oxy]-butaneCatalogue No : VL197011
7-[4-[4-(3-Chlorophenyl)-1-piperazinyl]butoxy]-3,4-dihydro-
2(1H)-quinolinoneCatalogue No : VL197009
N,N-bis(2-bromoethyl)amine HCl
N,N-bis(2-bromoethyl)amine HClCatalogue No : VL197002CAS No : 821-48-7
7-(4-chlorobutoxy)quinolin-2(1H)-one/ DH-CLDCS Impurity
7-(4-chlorobutoxy)quinolin-2(1H)-oneCatalogue No : VL197004CAS No : 120004-79-7
2,7-Dihydroxy quinoline / Aripiprazile quinoline Impurity
2,7-DihydroxyquinolineCatalogue No : VL197003CAS No : 86-95-3
Aripiprazole USP Related Compound G / Aripiprazole EP Impurity E / Dehydro Aripiprazole
7-[4-[4-(2,3-Dichlorophenyl)-1-piperazinyl]butoxy]-2(1H)-QuinolinoneCatalogue No : VL197007
Aripiprazole Dimer (Aripiprazole 4,4’- Dimer)
1,1’-(ethane-1,1-diyl)bis(2,3-dichloro-4-{4-[3,4-dihydroquinolin-2(1H)-one-7-yloxybutyl]piperazin-1-yl}benzene)Catalogue No : VL197001
Dehydro Aripiprazole/ Aripiprazole USP Related Compound G/ Aripiprazole EP Impurity E
7-[4-[4-(2,3-Dichlorophenyl)-1-piperazinyl]butoxy]-2(1H)-
quinolinone;Catalogue No : VL197007
Aripiprazole Chlorobutoxy Quinoline (USP)
7-(4-Chlorobutoxy)-3,4-dihydro-2(1H)-quinolinone Catalogue No : VL197018
Ascorbic Acid
(R)-5-((S)-1, 2-dihydroxyethyl)-3,4-dihydroxyfuran-2(5H)-oneCatalogue No : VL258001
Asenapine N-Oxide Impurity
(3aR-trans)-5-Chloro-2,3,3a,12b-tetrahydro-2-methyl-1H-dibenz[2,3:6,7]oxepino[4,5-c]pyrrole 2-OxideCatalogue No : VL380001
N-Desmethyl Asenapine
5-Chloro-2,3,3a,12b-tetrahydro-1H-dibenz[2,3:6,7]oxepino[4,5-c]pyrroleCatalogue No : VL380002
Aspartame impurity B (L-aspartyl-L-phenylalanine)
L-aspartyl-L-phenylalanineCatalogue No : VL280001
4-hydroxybenzoic acid / Aspirin EP Impurity A
Para-Hydroxybenzoic acid
OR
4-Hydroxybenzoic AcidCatalogue No : VL530001
Acetylsalicylic Anhydride (Aspirin Impurity F)
Acetylsalicylic Anhydride OR (2-[2-Acetyl oxy Benzoic Anhydride)Catalogue No : VL530002
Acetylsalicylsalicylic Acid / Aspirin EP Impurity D
Acetylsalicylsalicylic Acid OR (2-[2-acetylhydroxybenzoyl] oxy] benzoic Acid)Catalogue No : VL530003
Salicyl Salicylic Acid / Aspirin EP Impurity E
2-[(2-hydroxybenzoyl)oxy]benzoic acid (Salicylsalicylic acid)Catalogue No : VL530004
Atenolol EP Impurity A
2-(4-Hydroxyphenyl)acetamideCatalogue No : VL500004CAS No : 17194-82-0
Atenolol EP Impurity B
2-[4-[(2RS)-2,3-dihydroxypropoxy]phenyl]acetamideCatalogue No : VL500005CAS No : 61698-76-8
Atenolol EP Impurity C
2-[4-[[(2RS)-oxiran-2-yl]methoxy]phenyl]acetamideCatalogue No : VL500006CAS No : 29122-69-8
Atenolol EP Impurity D
2-[4-[(2RS)-3-chloro-2-hydroxypropoxy]phenyl]acetamideCatalogue No : VL500007CAS No : 115538-83-5
Atenolol EP Impurity E
2,2’-[2-Hydroxypropan-1,3-diylbis(oxy-4,1-phenylene)]diacetamideCatalogue No : VL500008CAS No : 141650-31-9
Atenolol EP Impurity G
2-[4-[(2RS)-2-Hydroxy-3-[(1-methylethyl)amino]propoxy]phenyl]acetic acid sodium saltCatalogue No : VL500009CAS No : 56392-14-4
Atenolol EP Impurity I
2-(4-(3-(Ethylamino)-2-hydroxypropoxy)phenyl)acetamideCatalogue No : VL500010CAS No : 1797116-92-7
Atenolol Impurity J
2[4-(3-Amino-2-hydroxy-propoxy)-phenyl]-acetamide; 2-[4-[(2RS)-3-Amino-2-hydroxypropoxy]phenyl]acetamide;Catalogue No : VL500011CAS No : 81346-71-6
Bis-ether Impurity / Atenolol Bis Ether Impurity
2-(4-(3-(4-(2-amino-2-oxoethyl)phenoxy)-2-hydroxypropoxy)phenyl)acetic acidCatalogue No : VL500001
Blocker Acid impurity / Atenolol Blocker Acid Impurity
2-(4-(2-hydroxy-3-(isopropylamino)propoxy)phenyl)acetic acidCatalogue No : VL500002
Tertiary-Amine Impurity / Atenolol Tertiary Amine Impurity / Atenolol EP Impurity F
2,2’ -((((isopropylazanediyl)bis(2-hydroxypropane-3,1-diyl))bis(oxy))bis(4,1-
phenylene))diacetamideCatalogue No : VL500003CAS No : 87619-83-8
Atenolol EP Impurity H /Atenolol USP RC B
2-[4-[(2RS)-2-hydroxy-3-[(1-methylethyl)amino]propoxy]
phenyl]acetonitrileCatalogue No : VL500012
Atomoxetine-N-Amide Impurity
(R)-1-methyl-1-(3-phenyl-3-(o-tolyloxy) propyl)ureaCatalogue No : VL266004
S-Mandelic Acid Impurity
(S)-2-hydroxy-2-phenylacetic acid.Catalogue No : VL266001
a
asCatalogue No : 1CAS No : 1
Atorvastatin Diepoxide Calcium Salt
7-[N-Phenyl-2-[4-(4-fluorophenyl]-6-methylethyl]-3,7-dioxa-5-azatricyclo
[4.1.0.02,4]-4-[{phenylamino}carboxamiide]-(3R,5R)-3,5-dihydroxyheptanoic Acid Calcium SaltCatalogue No : VL10014
4-Hydroxy Atorvastatin Monosodium Salt
Sodium (3R,5R)-7-(2-(4-fluorophenyl)-4-((4-hydroxyphenH-pyrrol-1-yl)-3,5-
dihydroxyheptanoateCatalogue No : VL10015
Atorvastatin Impurity F / Diamino Impurity
(3R,5R)-7-[[(3R,5R)-7-[2-(4-Fluorophenyl)-5-(1-methylethyl)-3-phenyl-4-
[(phenylamino)carbonyl]-1H-pyrrol-1-yl]-3,5-dihydroxy-1-oxoheptyl]amino]-3,5-dihydroxyheptanoic
Acid Calcium SaltCatalogue No : VL10011
Atorvastatin 3-Deoxy-Hept-2-Enoic Acid
(S)-7-[2-(4-Fluorophenyl)-5-isopropyl-3-phenyl-4-
(phenylcarbamoyl)-1H- pyrrol-1-yl]-5-hydroxyhept-2-enoic acid calcium saltCatalogue No : VL10018
Atorvastatin Related Compound B / (3S,5R isomer)
(3S,5R)-7-[3-(phenylcarbomoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5-dihyroxyheptanoicacid, calcium salt.Catalogue No : VL10001
Atorvastatin Related compound D/ Epoxide Impurity
Atorvastatin epoxide impurity OR 3-(4-fluorophenyl)-2-isobutyryl-3-phenyloxirane-
2-carboxylic acid phenylamideCatalogue No : VL10003
Oxo Atorvastatin Impurity
4-[6-(4-Fluoro-phenyl)-6-hydroxy-1b-isopropyl-6a-phenyl-1a-phenylcarbamoylhexahydro-
1,2-dioxa-5a-aza-cyclo-propa[a]inden-3-yl]-3-(R)-hydroxy-butyric acid.Catalogue No : VL10007
Atorvastatin Methyl Ester/ Diol methyl ester impurity
(3R,5R)-7-[3-(Phenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5dihydroxyheptanoicacid methyl esterCatalogue No : VL10009
Atorvastatin -3-O-Methyl (Atorvastatin Impurity G)
2-(4-Fluorophenyl)-δ-hydroxy-β-methoxy-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1- heptanoic Acid Calcium Salt.Catalogue No : VL10010
Atorvastatin Lactone / Atorvastatin USP Related compound H / Atorvastatin EP Impurity H
5-(4-Fluorophenyl)-2-(1-methylethyl)-N,4-diphenyl-1-[2-[(2R,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethyl]-1H-pyrrole-3-carboxamideCatalogue No : VL10002
Atorvastatin Related Compound I / Acetonide Impurity
Tert-Butyl 2-((4R,6R)-6-{2-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl]ethyl}-2,2-dimethyl-1,3-dioxan-4-yl)acetate.Catalogue No : VL10012
Atorvastatin Butyl Ester Impurity/ Atorvastatin tert-Butyl Ester
5-(4-Fluorophenyl)-2-(1-methylethyl)-N,4-diphenyl-1-[2-[(2R,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethyl]-1H-pyrrole-3-carboxamideCatalogue No : VL10013
Desfluoro Atorvastatin (Atorvastatin Related Compound A)
(3R, 5R)-7-[3-(phenylcarbamoyl)-2-isopropyl-4,5- diphenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid calcium salt)Catalogue No : VL10004
Atorvastatin FXA Impurity/ Atorvastatin 6-Hydroxy analog/ Atorvastatin Cyclo IP
4-{6-(4-Fluorophenyl)-7,8-epoxy-6-hydroxy-8a-isopropyl-7-
phenyl-8-(phenylcarbamoyl)hexahydro-2H-pyrrolo[2,1-
b][1,3]oxazin-2-yl}-3-hydroxybutanoic acid Catalogue No : VL10023
Atorvastatin Pyrrolidone Analog (USP)/ Atorvastatin Lactam
(3R,5R)-7-[5-(4-Fluorophenyl)-2,3-dihydro-3-(1-methylethyl)-2-
oxo- 4-phenyl-3-[(phenylamino) carbonyl]-1H-pyrrol-1-yl]-3,5-
dihydroxy-heptanoic acid Sodium salt Catalogue No : VL10019
Atorvastatin Related Compound C / Difluoro Impurity
(3R,5R)-7-[3-(phenylcarbomoyl)-4,5-bis(4-fluorophenyl)-2-isopropyl-1H-pyrrol-1-yl]-3,5-dihyroxyheptanoic acid, calcium salt.Catalogue No : VL10005
Atorvastatin EP Impurity E/ Atorvastatin Related Compound E/3S 5S Isomer
(3S,5S)-7-[3-(phenylcarbamoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1Hpyrrol-
1-yl]-3,5-dihyroxyheptanoic acid, calcium salt.Catalogue No : VL10006
Atorvastatin Epoxy Tetrahydrofuran Analog
4-(4-Fluorophenyl)-2,4-dihydroxy-2-isopropyl-N,5-diphenyl-3,6-
dioxabicyclo [3.1.0]hexane-1-carboxamide Catalogue No : VL10026
Atorvastatin FX1 Impurity / Atorvastatin Cyclic Fluorophenyl (Cyclo FP) / Atorvastatin Epoxy Pyrrolooxazin 7-Hydroxy analog
4-(1b-(4-fluorophenyl)-7-hydroxy-7-isopropyl-1a-phenyl-7a-
(phenylcarbamoyl)hexahydro-1aH-oxireno[2’,3’:3,4]pyrrolo[2,1-
b][1,3]oxazin-3-yl)-3-hydroxybutanoic acidCatalogue No : VL10021
Atorvastatin Epoxy THF Analog
4-(4-Fluorophenyl)-2,4-dihydroxy-2-isopropyl-N,5-diphenyl-3,6-
dioxabcclo [3.1.0]hexane-1carboxamideCatalogue No : VL10030
Atovaquone Indene Isomer
2-((1r,4r)-4-(4-chlorophenyl)cyclohexyl)-1-oxo-1H-indene-3-carboxylic acidCatalogue No : VL1370001
Didehydro Atovaquone / Atovaquone EP Impurity C
2-[(1RS)-4-(4-Chlorophenyl)cyclohex-3-en-1-yl]-3hydroxynaphthalene-1,4-dioneCatalogue No : VL1370004CAS No : 1809464-27-4
6-Iodo Indazole
6-Iodo-1H-indazole Catalogue No : VL4110001
Axitinib Impurity 29
3,6-DIIODO (1H) INDAZOLECatalogue No : VL4110002
Azelastine EP Impurity A
Benzoic Acid Hydrazide; 4-Benzoic Hydrazide; Benzenecarboxylic Acid Hydrazide;
Benzhydrazide; Benzohydrazide; Benzoic Hydrazide; Benzoylhydrazine;Catalogue No : VL1100001
Azelastine EP Impurity B
Benzoic Acid 2-(Hexahydro-1-methyl-1H-azepin-4-yl)hydrazide Hydrochloride;N-(1-Methylazepan-4-yl)benzohydrazineCatalogue No : VL1100002
Azelastine EP Impurity C
2-[2-(4-Chlorophenyl)acetyl]benzoic Acid; 2-[(4-Chlorophenyl)acetyl]benzoic AcidCatalogue No : VL1100003
Azelastine EP Impurity D
4-(4-chlorobenzyl)phthalazin-1(2H)-oneCatalogue No : VL110004
Azelastine EP Impurity E
3-(4-chlorobenzylidene)isobenzofuran-1(3H)-oneCatalogue No : VL1100005
Azilsartan Impurity-1 (ARA-3) / Azilsartan K Medoxomil Impurity - 1
2-ethoxy-1-((2’ -(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-[1,1’ -biphenyl]-4-yl)methyl)-1H-benzo[d]imidazole-7-carboxylic acidCatalogue No : VL252001
Azilsartan K Medoxomil Impurity-6 (Desethyl Impurity)
(5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 2-hydroxy-1-((2’ -(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-[1,1’ -biphenyl]-4-yl)methyl)-1H-benzo[d]imidazole-7-carboxylateCatalogue No : VL252006
Azilsartan K Medoxomil Impurity-7 (2-EHA Impurity)
2-ethylhexanoic acidCatalogue No : VL252007
Azilsartan K Impurity-5 (Bis Impurity) / Azilsartan Medoxomil Impurity 5
(5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 2-ethoxy-1-((2’ -(4-((5-methyl-2-oxo-1,3-dioxol-4-yl)methyl)-5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-[1,1’ -biphenyl]-4-yl)methyl)-1H-benzo[d]imidazole-7-carboxylateCatalogue No : VL252005
Azilsartan K Medoxomil Impurity-4
isopropyl 2-ethoxy-1-((2’ -(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-[1,1’ -biphenyl]-4-yl)methyl)-1H-benzo[d]imidazole-7-carboxylateCatalogue No : VL252004
Azilsartan K Medoxomil Impurity 3 (Methyl Ester)
methyl 2-ethoxy-1-((2’ -(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-[1,1’ -biphenyl]-4-yl)methyl)-1H-benzo[d]imidazole-7-carboxylateCatalogue No : VL252003
Azilsartan K Medoxomil Impurity 2 (Ethyl Ester)
ethyl 2-ethoxy-1-((2’ -(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-[1,1’ -biphenyl]-4-
yl)methyl)-1H-benzo[d]imidazole-7-carboxylateCatalogue No : VL252002
Azilsartan K Medoxomil Impurity-8 (Diacetyl Impurity)
DiacetylCatalogue No : VL252008
Azithromycin Impurity B / 3- Deoxy Azithromycin
3-deoxy azithromycinCatalogue No : VL186008
Azithromycin Impurity O / 2- Des Ethyl Z-Propyl Azithromycin
(2-desethyl-2-propylazithromycin)Catalogue No : VL1860010
Azithromycin N-Oxide (Azithromycin Impurity L)
Azithromycin N-OxideCatalogue No : VL186001
Azithromycin Impurity A / Azaetrythromycin Impurity A
6-demethyl AzithromycinCatalogue No : VL1860013
Azithromycin Impurity P (RRT 0.92)
Catalogue No : VL1860015
Azithromycin Impurity G
3'-N-Demethyl-3'-N-[(4-methylphenyl) sulfonyl] azithromycinCatalogue No : VL1860011
Azithromycin Impurity 1
3’ -N-{[4-(Acetylamino)phenyl]sulfonyl}-3’ ,3’ -didemethylazithromycinCatalogue No : VL1860014
Azithromycin Impurity H / Azithromycin Related Compound H
3’ -N-{[4-(Acetylamino)phenyl]sulfonyl}-3’ -demethylazithromycinCatalogue No : VL1860012
Azithromycin Impurity C (3”-O-demethylazithromycin)
3'-N-{[4-(Acetylamino)phenyl]sulfonyl}-3’,3’-didemethylazithromycinCatalogue No : VL186009
Desosaminyl AzithromycinCatalogue No : VL186002CAS No : 117693-41-1
3’ -N-demethylazithromycin Catalogue No : VL186003CAS No : 172617-84-4
Azithromycin Impurity F / Azithromycin Related Compound F
3’ -N-demethyl-3’ -N-formylazithromycin
Catalogue No : VL186004CAS No : 612069-28-0
Azithromycin Impurity M
3’-N,N-didesmethyl-N-formyl-azithromycinCatalogue No : VL186005CAS No : 765927-71-7
Azithromycin Impurity N
3’-N,N-didesmethyl-3’-oxo-azithromycinCatalogue No : VL186006CAS No : 612069-25-7
Azithromycin Impurity E
3-(N,N-didemethyl)azithromycin, aminoazithromycinCatalogue No : VL186007CAS No : 612069-27-9
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