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Name of parent drug:
baclofen

Di-baclofen Urea Impurity
Di-baclofen Urea Impurity

4-({[3-Carboxy-2-(4-chlorophenyl)propyl]carbamoyl}amino)-3-(4- chlorophenyl)butanoic acid

Catalogue No : VL3050001

CAS No : N/A

Beclometasone Dipropionate EP Impurity A
Beclometasone Dipropionate EP Impurity A

(11β,16β)-9-Chloro-11,17-dihydroxy-16-methyl-21-(1-oxopropoxy)-pregna-1,4-diene-3,20-dione; Beclomethasone 21-Monopropionate

Catalogue No : VL2620010

CAS No : 69224-79-9

Beclometasone Dipropionate EP Impurity B
Beclometasone Dipropionate EP Impurity B

(11β,16β)-21-(acetyloxy)-9-chloro-11-hydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; 9-Chloro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Acetate 17-Propionate

Catalogue No : VL2620003

CAS No : 5534-08-7

Beclometasone Dipropionate EP Impurity C
Beclometasone Dipropionate EP Impurity C

9-Chloro-11β-hydroxy-16β-methyl-3,20-dioxo-17-(propanoyloxy)-pregna-1,4-dien-21-yl butanoate

Catalogue No : VL2620004

CAS No : N/A

Beclometasone Dipropionate EP Impurity D
Beclometasone Dipropionate EP Impurity D

(11β,16β)-9-Bromo-11-hydroxy-16-methyl-17,21-bis(1-oxopropoxy)pregna-1,4-diene-3,20-dione

Catalogue No : VL2620005

CAS No : 52092-14-5

Beclometasone Dipropionate EP Impurity F
Beclometasone Dipropionate EP Impurity F

(6α,11β,16β)-6-Bromo-9-chloro-11-hydroxy-16-methyl-17,21-bis(1-oxopropoxy)pregna-1,4-diene-3,20-dione

Catalogue No : VL2620006

CAS No : 887130-69-0

Beclometasone Dipropionate EP Impurity H
Beclometasone Dipropionate EP Impurity H

(11β,16β)-9-Chloro-11,21-dihydroxy-16-methyl-17-(1-oxopropoxy)-pregna-1,4-diene-3,20-dione; Beclomethasone 17-Monopropionate

Catalogue No : VL2620012

CAS No : 5534-18-9

Beclometasone Dipropionate EP Impurity I
Beclometasone Dipropionate EP Impurity I

(16β)-16-Methyl-17,21-bis(1-oxopropoxy)pregna-1,4,9(11)-triene-3,20-dione

Catalogue No : VL2620013

CAS No : 52092-12-3

Beclometasone Dipropionate EP Impurity J
Beclometasone Dipropionate EP Impurity J

(9β,11β,16β)-9,11-Epoxy-16-methyl-17,21-bis(1-oxopropoxy)pregna-1,4-diene-3,20-dione;Beclo methasone9,11-Epoxide 17,21-Dipropionate

Catalogue No : VL2620014

CAS No : 66917-44-0

Beclometasone Dipropionate EP Impurity L
Beclometasone Dipropionate EP Impurity L

(11β,16β)-9-chloro-11-hydroxy-16-methyl-17,21-bis(1-oxopropoxy)pregn-4-ene-3,20-dione

Catalogue No : VL2620015

CAS No : 114371-33-4

Beclometasone Dipropionate EP Impurity M
Beclometasone Dipropionate EP Impurity M

9-Chloro-11β-hydroxy-16β-methyl-3,20-dioxopregna-4,6-diene-17,21-diyl dipropanoate

Catalogue No : VL2620007

CAS No : N/A

Beclometasone Dipropionate EP Impurity N
Beclometasone Dipropionate EP Impurity N

(11β,16β)-2-BroMo-9-chloro-11-hydroxy-16-Methyl-17,21-bis(1-oxopropoxy)pregna-1,4-diene-3,20-dione

Catalogue No : VL2620001

CAS No : N/A

Beclometasone Dipropionate EP Impurity O
Beclometasone Dipropionate EP Impurity O

(8S,9R,10S,11S,13S,14S,16S,17R)-9,11-Dichloro-10,13,16-trimethyl-3-oxo-17-(2-(propionyloxy)acetyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl Propionate

Catalogue No : VL2620016

CAS No : 14527-61-8

Beclometasone Dipropionate EP Impurity Q
Beclometasone Dipropionate EP Impurity Q

(8S,9R,10S,11S,13S,14S,16S,17R)-9,11-Dichloro-10,13,16-trimethyl-3-oxo-17-(2-(propionyloxy)ace tyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro -3H-cyclopenta[a]phenanthren-17-ylPropionate

Catalogue No : VL2620002

CAS No : N/A

Beclometasone Dipropionate EP Impurity R / Beclometasone EP Impurity E
Beclometasone Dipropionate EP Impurity R / Beclometasone EP Impurity E

(9β,11β,16β)-9,11-Epoxy-17,21-dihydroxy-16-methylpregna-1,4-diene-3,20-dione

Catalogue No : VL2620017

CAS No : 887130-68-9

Beclometasone Dipropionate EP Impurity S
Beclometasone Dipropionate EP Impurity S

(8S,9R,10S,11S,13S,14S,16S,17R)-9-Chloro-10,13,16-trimethyl-3-oxo-17-(2-(propionyloxy)acetyl)-6,7,8,9,10,11,12,13,14,15,16, 17-dodecahydro-3H-cyclopenta[a]phenanthrene-11,17-diyl Dipropionate

Catalogue No : VL2620018

CAS No : 1709825-83-1

Beclometasone Dipropionate EP Impurity U
Beclometasone Dipropionate EP Impurity U

(9β,11β,16β)-9,11-Epoxy-21-hydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; Beclomethasone 9,11-Epoxide 17-Propionate

Catalogue No : VL2620019

CAS No : 79578-39-5

Beclometasone Dipropionate EP Impurity V
Beclometasone Dipropionate EP Impurity V

(9β,11β,16β)-9,11-Epoxy-17-hydroxy-16-methyl-21-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; Beclomethasone 9,11-Epoxide 21-Propionate

Catalogue No : VL2620020

CAS No : 205105-83-5

Beclometasone Dipropionate EP Impurity E
Beclometasone Dipropionate EP Impurity E

(6α,11β,16β)-6,9-Dichloro-11-hydroxy-16-methyl-17,21-bis(1-oxopropoxy)-pregna-1,4-diene-3,20-dione; (6S,8S,9R,10S,11S,13S ,14S,16S,17R)-6,9-dichloro-11-Hydroxy-10,13,16-trimethyl-3-oxo-17-(2-(propionyloxy)acetyl)-6,7,8,9,10,11,12,13,14, 15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl Pr

Catalogue No : VL2620011

CAS No : 887130-68-9

Benidipine Dehydro Impurity
Benidipine Dehydro Impurity

(2,6-Dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic Acid 3-Methyl 5-[1-(Phenylmethyl)-3-piperidinyl] Ester

Catalogue No : VL2590002

CAS No : 118935-44-7

Benzene Sulfonic Acid
Benzene Sulfonic Acid

Benzene Sulfonic Acid

Catalogue No : VL228001

CAS No : 98-11-3

Bisacodyl USP Related Compound E
Bisacodyl USP Related Compound E

2-[(RS)-[4-(Acetyloxy)-phenyl](pyridin-2-yl)methyl]phenyl acetate

Catalogue No : VL191011

CAS No : 1217245-60-7

Benzothiadiazine Related Compound A
Benzothiadiazine Related Compound A

(4-Amino-6-chloro-1,3-benzenedisulfonamide)

Catalogue No : VL229001

CAS No : 121-30-2

Benzyl 4-Toluene Sulfonate Impurity
Benzyl 4-Toluene Sulfonate Impurity

Benzyl 4-Methylbenzenesulfonate

Catalogue No : VL3590001

CAS No : 1024-41-5

Betahistine Impurity A
Betahistine Impurity A

2-Ethenylpyridine

Catalogue No : VL178002

CAS No : 100-69-6

Betahistine EP Impurity B
Betahistine EP Impurity B

2-(2-Hydroxyethyl)pyridine

Catalogue No : VL178003

CAS No : 103-74-2

Betahistine Impurity C
Betahistine Impurity C

N-methyl-bis[beta-(2-pyridyl)ethyl]amine trihydrochloride

Catalogue No : VL178001

CAS No : 5452-87-9 (free base)

Betamethasone Dipropionate EP Impurity G
Betamethasone Dipropionate EP Impurity G

11alpha,17,21-Trihydroxy-16beta-methylpregna-1,4-diene-3,20-dione; 11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17- dodecahydro-3H-cyclopenta[a]phenanthren-3-one

Catalogue No : VL2700017

CAS No : 1186048-33-8

Betamethasone Dipropionate EP Impurity E / Betamethasone 9,11-epoxide impurity
Betamethasone Dipropionate EP Impurity E / Betamethasone 9,11-epoxide impurity

(9β,11β,16β)-9,11-Epoxy-17,21-dihydroxy-16-methylpregna-1,4-diene-3,20-dione

Catalogue No : VL2700008

CAS No : 981-34-0

Betamethasone Dipropionate EP Impurity B / Betamethasone17-propionate impurity
Betamethasone Dipropionate EP Impurity B / Betamethasone17-propionate impurity

(11β,16β)-21-(acetyloxy)-9-chloro-11-hydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; 9-Chloro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Acetate 17-Propionate

Catalogue No : VL2700001

CAS No : 5534-13-4

Betamethasone Dipropionate EP Impurity D / Betamethasone 21-acetate-17-propionate
Betamethasone Dipropionate EP Impurity D / Betamethasone 21-acetate-17-propionate

(11β,16β)-21-(Acetyloxy)-9-fluoro-11-hydroxy-16-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione; 9-Fluoro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Acetate 17-Propionate

Catalogue No : VL2700003

CAS No : 5514-81-8

Betamethasone Dipropionate EP Impurity C / Betamethasone 21-propionate
Betamethasone Dipropionate EP Impurity C / Betamethasone 21-propionate

9-fluoro-11β,17-dihydroxy-16β-methyl-3,20-dioxopregna-1,4-dien-21-yl propanoate

Catalogue No : VL2700002

CAS No : 75883-07-7

Betamethasone delta 17, 20, 21-Aldehyde (Mixture of Isomer)
Betamethasone delta 17, 20, 21-Aldehyde (Mixture of Isomer)

(11β,16β)-9-Fluoro-11,20-dihydroxy-16-methyl-3-oxo-pregna-1,4,17(20)-trien-21-al

Catalogue No : VL2700004

CAS No : 6762-45-4

Betamethasone Valerate EP Impurity E / Betamethasone Valerate Related Compound A
Betamethasone Valerate EP Impurity E / Betamethasone Valerate Related Compound A

(11β,16β)-9-Fluoro-11,17-dihydroxy-16-methyl-21-[(1-oxopentyl)oxy]pregna-1,4-diene-3,20-dione; 9-Fluoro-11β,17,21-trihydroxy-16β-methylpregna-1,4-diene-3,20-dione 21-Valerate

Catalogue No : VL2700016

CAS No : 2240-28-0

1,2-Dihydro Betamethasone Dipropionate Impurity
1,2-Dihydro Betamethasone Dipropionate Impurity

(11β,16β)-9-Fluoro-11-hydroxy-16-methyl-17,21-bis(1-oxopropoxy)-pregn-4-ene-3,20-dione

Catalogue No : VL2700020

CAS No : 80163-83-3

6-α-bromo Betamethasone Dipropionate / Betamethasone EP Impurity H
6-α-bromo Betamethasone Dipropionate / Betamethasone EP Impurity H

6-Bromo-9-fluoro-11β-hydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-17,21-diyl Dipropanoate

Catalogue No : VL270010

CAS No : 1186048-34-9

Betaxolol EP Impurity D
Betaxolol EP Impurity D

4-[2-(Cyclopropylmethoxy)ethyl]phenol

Catalogue No : VL2940002

CAS No : 63659-16-5

Betaxolol Impurity F
Betaxolol Impurity F

(RS)-1-[4-(cyclobutyloxyethyl)phenoxy]-3-[(1-methylethyl) amino]propan-2-ol

Catalogue No : VL2940003

CAS No : N/A

Betaxolol EP Impurity B
Betaxolol EP Impurity B

(2RS)-1-[4-(2-Hydroxyethyl)phenoxy]-3-[(1- methylethyl)amino]propan-2-ol.

Catalogue No : VL2940001

CAS No : 62572-94-5

Betaxolol EP Impurity E
Betaxolol EP Impurity E

(2RS)-1-[4-(2-Butoxyethyl)phenoxy]-3-[(1-methylethyl)-amino]propan-2-ol

Catalogue No : VL2940004

CAS No : 1329613-85-5

Bezafibrate EP Impurity A
Bezafibrate EP Impurity A

N-(4-Chlorobenzoyl)tyramine

Catalogue No : VL3930001

CAS No : 41859-57-8

Bezafibrate EP Impurity B
Bezafibrate EP Impurity B

p-Chlorobenzoic Acid

Catalogue No : VL3930002

CAS No : 74-11-3

Bezafibrate EP Impurity C
Bezafibrate EP Impurity C

methyl 2-[4-[2-[(4-chlorobenzoyl)amino]ethyl]phenoxy]-2-methylpropanoate

Catalogue No : VL3930003

CAS No : 2157488-46-3

Bezafibrate EP Impurity D
Bezafibrate EP Impurity D

2-[4-[2-[(4-Chlorobenzoyl)amino]ethyl]phenoxy]-2-methyl-propanoic Acid Ethyl Ester

Catalogue No : VL3930004

CAS No : 41859-58-9

Bimatoprost Acid Impurity
Bimatoprost Acid Impurity

(5Z)-7-[(1R,2R,3R,5S)-3,5-Dihydroxy-2-[(1E,3S)-3-hydroxy-5-phenyl-1-penten-1-yl]cyclopentyl]-5-heptenoic Acid

Catalogue No : VL3370001

CAS No : 38344-08-0

5,6-Trans Bimatoprost Impurity
5,6-Trans Bimatoprost Impurity

(5E)-7-[(1R,2R,3R,5S)-3,5-Dihydroxy-2-[(1E,3S)-3-hydroxy-5-phenyl-1-penten-1-yl]cyclopentyl]-N-ethyl-5-heptenamide

Catalogue No : VL3370004

CAS No : 1163135-95-2

15 Epi Bimatoprost Impurity
15 Epi Bimatoprost Impurity

(5Z)-7-[(1R,2R,3R,5S)-3,5-Dihydroxy-2-[(1E,3R)-3-hydroxy-5-phenyl-1-penten-1-yl]cyclopentyl]-N-ethyl-5-heptenamide

Catalogue No : VL3370002

CAS No : 1163135-92-9

15 Keto Bimatoprost Impurity
15 Keto Bimatoprost Impurity

(5Z)-7-[(1R,2R,3R,5S)-3,5-Dihydroxy-2-[(1E)-3-oxo-5-phenyl-1-penten-1-yl]cyclopentyl]-N-ethyl-5-heptenamide

Catalogue No : VL3370003

CAS No : 1163135-96-3

Bisacodyl EP Impurity A
Bisacodyl EP Impurity A

4,4’-(2-Pyridinylmethylene)bisphenol

Catalogue No : VL3940002

CAS No : N/A

Bisacodyl EP Impurity B / Bisacodyl Related Compound B
Bisacodyl EP Impurity B / Bisacodyl Related Compound B

2-[(4-Hydroxyphenyl)-2-pyridinylmethyl]phenol

Catalogue No : VL3940003

CAS No : 16985-05-0

Bisacodyl EP Impurity C / Bisacodyl USP Related Compound C
Bisacodyl EP Impurity C / Bisacodyl USP Related Compound C

4-[(RS)-(4-Hydroxyphenyl)(pyridin-2-yl)methyl]phenyl acetate

Catalogue No : VL3940004

CAS No : 72901-16-7

Bisacodyl EP Impurity D
Bisacodyl EP Impurity D

4,4’-(2-Pyridinylmethylene)bisphenol 1,1’-Bis(hydrogen sulfate) Sodium Salt; 4,4’-(2-Pyridylmethylene)diphenol Bis(hydrogen sulfate) Disodium Salt;

Catalogue No : VL3940005

CAS No : 10040-45-6

Bisoprolol Impurity L
Bisoprolol Impurity L

4-[((2RS)-2Hydroxy-3-(isopropylamino)-propyl)oxy]Benzaldehyde

Catalogue No : VL191001

CAS No : 29122-74-5

Bisoprolol Impurity A
Bisoprolol Impurity A

(RS)-1-(4-Hydroxymethylphenoxy)-3-isopropylaminopropane-2-ol

Catalogue No : VL191002

CAS No : 62572-93-4

Bisoprolol EP Impurity K
Bisoprolol EP Impurity K

2-(1-Methylethoxy)ethyl ester-4-[2-hydroxy-3-[(1-methylethyl) amino] propoxy] benzoic Acid

Catalogue No : VL191004

CAS No : 864544-37-6

Bisoprolol EP Impurity N
Bisoprolol EP Impurity N

1-[4-[(2-Ethoxyethoxy)methyl] phenoxy]-3-[(1-methylethyl) amino]-2-propanol

Catalogue No : VL191018

CAS No : 1346601-75-9

Bisoprolol Dimmer Impurity
Bisoprolol Dimmer Impurity

3,3’-(Isopropylazanediyl)bis(1-(4-((2- isopropoxy ethoxy)methyl) phenoxy)propan-2-ol)

Catalogue No : VL191017

CAS No : N/A

Bisoprolol EP Impurity B / Bisoprolol Propyl Analog
Bisoprolol EP Impurity B / Bisoprolol Propyl Analog

(RS)-1-Isopropylamino-3-[4-(2-propoxyethoxymethyl) phenoxy] propan-2-ol ;

Catalogue No : VL191008

CAS No : 1447715-44-7

Bisoprolol EP Impurity C
Bisoprolol EP Impurity C

(RS)-1-[4-[4-(2-Hydroxy-3-isopropopylaminopropoxy)-benzyl]phenoxy]- 3-isopropylaminopropan-2-ol ;

Catalogue No : VL191015

CAS No : 1797132-90-1

Bisoprolol EP Impurity D
Bisoprolol EP Impurity D

(RS)-1-[4-[4-(2-Hydroxy-3-isopropylaminopropoxy)benzyloxylmethyl] phenoxy]-3-isopropylaminopropan-2-ol

Catalogue No :

CAS No : 1225195-71-0

Bisoprolol EP Impurity G
Bisoprolol EP Impurity G

(2RS)-1-[4-(((2-Isopropoxy-ethoxy)methoxy)methyl)phenoxy]-3- (isopropylamino)- 2-propanol

Catalogue No : VL191003

CAS No : 1215342-36-1

Bisoprolol Carboxylic Acid Impurity
Bisoprolol Carboxylic Acid Impurity

4-(2-Hydroxy-3-isopropylaminopropoxy)benzoic acid lithium salt

Catalogue No : VL191005

CAS No : 72570-70-8 (free acid)

Bisoprolol EP Impurity E
Bisoprolol EP Impurity E

(EZ)-[3-[4-(2-Isopropoxy-ethoxymethyl)phenoxy]allyl]isopropylamine

Catalogue No : VL191009

CAS No : 1217245-60-7

Bisoprolol Fumarate Impurity Q
Bisoprolol Fumarate Impurity Q

(2RS)-1-Isopropylamino-3-[4-(2-methoxyethoxy)methyl]-phenoxy-2-propanol fumarate

Catalogue No : VL191010

CAS No : 1346604-00-9

Bisoprolol EP Impurity S
Bisoprolol EP Impurity S

4-Hydroxybenzaldehyde

Catalogue No : VL191012

CAS No : 123-08-0

Bisoprolol EP Impurity R
Bisoprolol EP Impurity R

(2RS)-1-(Isopropylamino)-3-(4-methylphenoxy)propan-2-ol

Catalogue No : VL191007

CAS No : 5790-46-5

Bisoprolol EP Impurity T
Bisoprolol EP Impurity T

4-((3-isopropyl-2-oxooxazolidin-5-yl)methoxy)benzaldehyde

Catalogue No : VL191013

CAS No : 1173203-26-3

Bisoprolol EP Impurity U
Bisoprolol EP Impurity U

5-((4-(hydroxymethyl) phenoxy)methyl)-3-isopropyloxazolidin-2-one

Catalogue No : VL191016

CAS No : 1071765-44-0

Bortezomib USP Impurity A / Bortezomib Desphenylalanyl Analog (USP)
Bortezomib USP Impurity A / Bortezomib Desphenylalanyl Analog (USP)

(R)-[3-Methyl-1-(pyrazine-2-carboxamido)butyl]boronic acid

Catalogue No : VL1200001

CAS No : 289472-80-6

Bortezomib USP Impurity E
Bortezomib USP Impurity E

(S)-N-(1-Formamido-1-oxo-3-phenylpropan-2-yl)pyrazine-2-Carboxamide

Catalogue No : VL1200004

CAS No : N/A

Bortezomib USP Impurity F / Bortezomib Hydroxyketone Analog (USP)
Bortezomib USP Impurity F / Bortezomib Hydroxyketone Analog (USP)

(S)-N-(1-(3-Hydroxy-3-methylbutanamido)-1-oxo-3-phenylpropan-2-yl)pyrazine-2-carboxamide

Catalogue No : VL1200002

CAS No : 73058-37-4

Bosentan Impurity 1
Bosentan Impurity 1

N,N’-[5-(2-Methoxyphenoxy)[2,2’-bipyrimidine]- 4,6-diyl]bis[4-(1,1-dimethylethyl) benzenesulfonamide]

Catalogue No : VL28007

CAS No : 1218951-81-5

Bosentan Related Compound A / Bosentan Related Compound 3
Bosentan Related Compound A / Bosentan Related Compound 3

4-(tert-Butyl)-N-[6-chloro-5-(2-methoxyphenoxy)-(2,2’- bipyrimidin)-4-yl]benzenesulfonamide

Catalogue No : VL28008

CAS No : 150727-06-3

Bosentan Dimer Impurity / Bosentan USP Related Compound C
Bosentan Dimer Impurity / Bosentan USP Related Compound C

N,N ’ -(6,6-(ethane-diybis {oxybis[5-(2-methoxy phenoxy)-2,2 ’ -bipyrimidine-6,4- diyl]})bis(4-tert butyl benzene sulfonamide

Catalogue No : VL28001

CAS No : 1097263-60-9

Bosentan USP Related Compound A
Bosentan USP Related Compound A

4-tert-Butyl-N-(6-chloro-5-(2-methoxyphenoxy)-2,2-bipyrimidin-4-yl)benzenesulfonamide;4-(tert-Butyl)-N-[6-chloro-5-(2-methoxyphenoxy)-(2,2-bipyrimidin)-4-yl]benzenesulfonamide, 4-tert-Butyl-N-[6-chloro-5-(2-methoxyphenoxy)-2-(2-pyrimidinyl)-4-pyrimidinyl]benzenesulfonamide

Catalogue No : VL28002

CAS No : N/A

Bosentan USP Related Compound B
Bosentan USP Related Compound B

N-[1,6-Dihydro-5-(2-methoxyphenoxy)-6-oxo[2,2’-bipyrimidin]-4-yl]-4-(1,1-dimethylethyl) benzenesulfonamide; 4-tert-Butyl-N-[6-hydroxy-5-(2-methoxyphenoxy)-2,2’-bipyrimidin-4-yl]benzenesulfonamide

Catalogue No : VL28003

CAS No : 174227-14-6

Bosentan USP Related Compound C
Bosentan USP Related Compound C

N,N’-[1,2-Ethanediylbis[oxy[5-(2-methoxyphenoxy)[2,2’-bipyrimidine]-6,4-diyl]]]bis[4-(1,1-dimethylethyl)-benzenesulfonamide

Catalogue No : VL28004

CAS No : 1097263-60-9

Bosentan USP Related Compound D
Bosentan USP Related Compound D

4,6-Dichloro-5-(2-methoxyphenoxy)-2,2’-bipyrimidine

Catalogue No : VL28005

CAS No : 150728-13-5

Bosentan USP Related Compound E
Bosentan USP Related Compound E

4-(1,1-Dimethylethyl)benzenesulfonamide; p-tert-butyl-Benzenesulfonamide; NSC 9911; p-(tert-Butyl)phenylsulfonamide; p-tert-Butylbenzenesulfonamide

Catalogue No : VL28006

CAS No : N/A

Brexpiprazole N-Oxide
Brexpiprazole N-Oxide

7-[4-(4-Benzo[b]thien-4-yl-1-oxido-1-piperazinyl)butoxy]-2(1H)-quinolinone

Catalogue No : VL3840001

CAS No : 1191900-58-9

Brexpiprazole BBO Dimer Impurity
Brexpiprazole BBO Dimer Impurity

7,7’-(butane-1,4-diylbis(oxy))bis(quinolin-2(1H)-one)

Catalogue No : VL3840002

CAS No : N/A

Brexpiprazole Impurity 1
Brexpiprazole Impurity 1

1,4-Bis(benzo[b]thien-4-yl)piperazine

Catalogue No : VL3840003

CAS No : N/A

Brexpiprazole Impurity 2
Brexpiprazole Impurity 2

N-[4-((2-Oxo-1,2-dihydroquinolin-7-yl)oxy)butyl]

Catalogue No : VL3840004

CAS No : N/A

Brexpiprazole Impurity 3
Brexpiprazole Impurity 3

7-[4-(4-Benzo[b]thien-4-yl-1-oxido-1-piperazinyl)butoxy]-2(1H)- Quinolinone

Catalogue No : VL3840005

CAS No : N/A

Brexpiprazole Impurity 4
Brexpiprazole Impurity 4

5-[4-[4-(Benzothiophen-4-yl)piperazin-1-yl]butoxyl]-1H-quinolin-2-one

Catalogue No : VL3840006

CAS No : N/A

Brimonidine Impurity E
Brimonidine Impurity E

2-(5-Bromoquinoxalin-6-yl)guanidine

Catalogue No : VL1910001

CAS No : 168329-48-4 (base) ; 1797986-78-7 (HCl salt)

Brimonidine EP Impurity A
Brimonidine EP Impurity A

N-(4,5-Dihydro-1H-imidazol-2-yl)-6-quinoxalinamine

Catalogue No : VL1910004

CAS No : 91147-43-2

Brimonidine EP Impurity B
Brimonidine EP Impurity B

5-Bromo-6-quinoxalinamine; 5-Bromo-6-aminoquinoxaline

Catalogue No : VL1910003

CAS No : 50358-63-9

Brimonidine EP Impurity C
Brimonidine EP Impurity C

6-Amino-quinoxaline; (Quinoxalin-6-yl)amine; 6- Aminoquinoxaline; 6-Quinoxalylamine

Catalogue No : VL1910002

CAS No : 6298-37-9

Brimonidine Impurity D
Brimonidine Impurity D

N-(5-Bromo-6-quinoxalinyl)thiourea; (5-Bromo-6-quinoxalinyl)thiourea

Catalogue No : VL1910005

CAS No : 842138-74-3

Brinzolamide Impurity A/Brinzolamide Related Compound A
Brinzolamide Impurity A/Brinzolamide Related Compound A

(S-(-)-4-ethylamino-2,3-dihydro-2-(3-methoxypropyl)-4H-thieno-[3,2,e]-thiazine- 6-sulfonamide-1,1-dioxide

Catalogue No : VL207002

CAS No : 154127-42-1

Brinzolamide Impurity B / Brinzolamide Related Compound B
Brinzolamide Impurity B / Brinzolamide Related Compound B

(4R)-4-Amino-3,4-dihydro-2-(3-methoxypropyl)-2H-thieno[3,2-e]-1,2-thiazine-6-sulfonamide 1,1-Dioxide

Catalogue No : VL207001

CAS No : 404034-55-5 (base)

Bromfenac Impurity D
Bromfenac Impurity D

7-benzoyl-1,3-dihydro-2H-indol-2-one

Catalogue No : VL274004

CAS No : 51135-38-7

Bromfenac Impurity C
Bromfenac Impurity C

7-(4-bromobenzoyl)-1,3-dihydro-2H-indol-2-one

Catalogue No : VL274003

CAS No : 91713-91-6

Bromfenac Impurity B
Bromfenac Impurity B

7-(4-bromobenzoyl)-3-(methylsulfanyl)-1,3-dihydro-2H-indol-2-one

Catalogue No : VL274002

CAS No : 91713-90-5

Bromfenac Impurity A
Bromfenac Impurity A

Sodium (2-amino-3-benzoylphenyl)acetate

Catalogue No : VL274001

CAS No : 61941-56-8

Bromhexine Impurity A
Bromhexine Impurity A

(2-amino-3,5-dibromophenyl)methanol

Catalogue No : VL24001

CAS No : 50739-76-9

Bromhexine Impurity B
Bromhexine Impurity B

2-amino-3,5-dibromobenzaldehyde

Catalogue No : VL24002

CAS No : 50910-55-9

Bromhexine Impurity E
Bromhexine Impurity E

(3rs)-6,8-dibromo-3-cyclohexyl-3-methyl-1,2,3,4-tetrahydroquinazolin-3-ium

Catalogue No : VL24005

CAS No : 1661064-00-1

Bromhexine Impurity D
Bromhexine Impurity D

N-(2-amino-5-bromobenzyl)-N-methylcyclohexanamine

Catalogue No : VL24004

CAS No : 132004-28-5

Bromohexine Impurity C
Bromohexine Impurity C

N-(2-Aminobenzyl)-N-methylcyclohexanamine

Catalogue No : VL24003

CAS No : 57365-08-9

1-Bromo Decane
1-Bromo Decane

1-Bromo Decane

Catalogue No : VL1180001

CAS No : 112-29-8

Budesonide EP Impurity D
Budesonide EP Impurity D

16α,17-[(1RS)-Butylidenebis(oxy)]-11β-hydroxy-3,20-dioxopregna-1,4-dien-21-aldehyde

Catalogue No : VL34008

CAS No : 85234-63-5

Budesonide EP Impurity G
Budesonide EP Impurity G

16α,17-[(1RS)-Butylidenebis(oxy)]-11β,21-dihydroxypregn-4-ene-3,20-dione

Catalogue No : VL34009

CAS No : 137174-25-5

Budesonide EP Impurity H
Budesonide EP Impurity H

16α,17-[(1RS)-Butylidenebis(oxy)]-21-hydroxypregna-1,4,9(11)-triene-3,20-dione

Catalogue No : VL34010

CAS No : 313474-58-7

Budesonide EP Impurity J
Budesonide EP Impurity J

16α,17-[(1RS)-Butylidenebis(oxy)]-9α-bromo-11β,21-dihydroxypregna-1,4-diene-3,20-dione

Catalogue No : VL34011

CAS No : 313474-59-8

Budesonide EP Impurity K
Budesonide EP Impurity K

16α,17-[(1RS)-Butylidenebis(oxy)]-11β,21-dihydroxypregna-1,4-diene-3,20-dione-21-acetate

Catalogue No : VL34012

CAS No : 51333-05-2

21-Butyryloxy Budesonide
21-Butyryloxy Budesonide

2-((6aR,6bS,7S,8aS,8bS,11aR,12aS,12bS)-7-Hydroxy-6a,8adimethyl-4-oxo-10-propyl-2,4,6a,6b,7,8,8a,8b,11a,12,12a,12b-dodecahydro-1Hnaphtho[2’,1’:4,5]indeno[1,2-d][1,3]dioxol-8b-yl)-2-oxoethyl Butyrate

Catalogue No : VL34014

CAS No : N/A

Budesonide 17,21 Diacetyloxy Impurity
Budesonide 17,21 Diacetyloxy Impurity

11β,17,21-Trihydroxypregna-1,4-diene-3,20-dione; (11β)-17,21-Bis(acetyl oxy)-11-hydroxypregna-1,4-diene-3,20-dione

Catalogue No : VL34015

CAS No : 17652-24-3

Budesonide 17-Carboxylic Acid Impurity
Budesonide 17-Carboxylic Acid Impurity

(11β,16α,17α)-16,17-[Butylidenebis(oxy)]-11-hydroxy-3-oxoandrosta-1,4-diene-17-carboxylic acid

Catalogue No : VL34013

CAS No : 192057-49-1

Budesonide EP Impurity A / 16α-Hydroxy prednisolone
Budesonide EP Impurity A / 16α-Hydroxy prednisolone

11β,16α,17,21-Tetrahydroxypregna-1,4-diene-3,20-dione

Catalogue No : VL34001

CAS No : 13951-70-7

Budesonide EP Impurity B
Budesonide EP Impurity B

16α,17-[(1RS)-Ethylidenebis(oxy)]-11β,21-dihydroxypregna-1,4-diene-3,20-dione

Catalogue No : VL34002

CAS No : 1040085-98-0

Budesonide EP Impurity C
Budesonide EP Impurity C

16α,17-[(1RS)-Butylidenebis(oxy)]-11β-hydroxy-17-(hydroxymethyl)-Dhomoandrosta- 1,4-diene-3,17a-dione

Catalogue No : VL34003

CAS No : 1040085-99-1

Budesonide EP Impurity E / Budesonide Related Compound E / 14,15-Dehydro Budesonide
Budesonide EP Impurity E / Budesonide Related Compound E / 14,15-Dehydro Budesonide

(16α,17-[butylidenebis(oxy)]-11β,21-dihydroxypregna-1,4,14-triene-3,20-dione)

Catalogue No : VL34004

CAS No : 131918-64-4

Budesonide EP Impurity F / Desonide
Budesonide EP Impurity F / Desonide

16α-Hydroxyprednisone 16α, 17α acetonide; (11β,16α)-11,21-Dihydroxy-16,17-[(1-methylethylidene)bis(oxy)]pregna -1,4-diene-3,20-dione

Catalogue No : VL34005

CAS No : 638-94-8

Budesonide EP Impurity I / 16α-Butyloxyprednisolone
Budesonide EP Impurity I / 16α-Butyloxyprednisolone

(11β,16α)-11,17,21-Trihydroxy-16-(1-oxobutoxy)-pregna-1,4-diene-3,20-dione

Catalogue No : VL34006

CAS No : 113930-13-5

Budesonide EP Impurity L / Budesonide Related Compound L / 11-Ketobudesonide
Budesonide EP Impurity L / Budesonide Related Compound L / 11-Ketobudesonide

(16α)-16,17-[Butylidenebis (oxy)]-21-hydroxypregna-1,4-diene-3,11,20-trione

Catalogue No : VL34007

CAS No : 216453-74-6

Bumetanide Propyl analog
Bumetanide Propyl analog

3-(Aminosulfonyl)-4-phenoxy-5-(propylamino)benzoic Acid

Catalogue No : VL253006

CAS No : 28395-28-0

Butyl 3-(Butylamino)-4-phenoxy-5-sulfamoylbenzoate
Butyl 3-(Butylamino)-4-phenoxy-5-sulfamoylbenzoate

3-(Aminosulfonyl)-5-(butylamino)-4-phenoxybenzoic Acid Butyl Ester

Catalogue No : VL253008

CAS No : 32643-00-8

Bumetanide Impurity 5 / Bumatanide butyl ester analogue
Bumetanide Impurity 5 / Bumatanide butyl ester analogue

butyl 3-(butylamino)-4-phenoxy-5-sulfamoylbenzoate)

Catalogue No : VL253003

CAS No : 32643-00-8

Bumetanide Impurity 3 / Bumetanide Nitro analogue
Bumetanide Impurity 3 / Bumetanide Nitro analogue

3-nitro-4-phenoxy-5-sulfamoylbenzoic acid

Catalogue No : VL253001

CAS No : 28328-53-2

Bumetanide Impurity 4
Bumetanide Impurity 4

4-phenoxy-3-(propylamino)-5-sulfamoylbenzoic acids

Catalogue No : VL253002

CAS No : N/A

Bumetanide EP Impurity B / Bumetanide USP Related Compound A / Bumetanide Impurity 6 (Bumetanide Amino Analogue)
Bumetanide EP Impurity B / Bumetanide USP Related Compound A / Bumetanide Impurity 6 (Bumetanide Amino Analogue)

3-amino-4-phenoxy-5-sulfamoylbenzoic acid

Catalogue No : VL253004

CAS No : 28328-54-3

Bumetanide EHA Analogue (Bumetanide Impurity – HX)
Bumetanide EHA Analogue (Bumetanide Impurity – HX)

(3-(2-ethyhexylamino)-4-Phenoxy-5-Sulfamyl Benzoic acid)

Catalogue No : VL253005

CAS No : 153012-65-8

Bumetanide EP Impurity A / Bumetanide USP Related Compound B
Bumetanide EP Impurity A / Bumetanide USP Related Compound B

3-Nitro-4-phenoxy-5-sulfamoylbenzoic acid

Catalogue No : VL253007

CAS No : 28328-53-2

3-Deschloro-2-chloro Bupropion Hydrochloride
3-Deschloro-2-chloro Bupropion Hydrochloride

1-(2-Chlorophenyl)-2-[(1,1-dimethylethyl)amino]-1-propanone Hydrochloride

Catalogue No : VL25019

CAS No : N/A

Bupropion Des TButyl amino Impurity
Bupropion Des TButyl amino Impurity

1-(3-Chlorophenyl)-1-propanone; 3-Chlorophenyl Ethyl Ketone

Catalogue No : VL25022

CAS No : N/A

Bupropion Impurity J / 3- Chloro benzoic acid
Bupropion Impurity J / 3- Chloro benzoic acid

2-(tert-Butylamino)-3’,4’-dichloropropiophenone Hydrochloride

Catalogue No : VL25020

CAS No : N/A

Bupropion Related Compound F
Bupropion Related Compound F

1-(3-Chlorophenyl)-1-hydroxy-2-propanone

Catalogue No : VL25021

CAS No : 857233-13-7

1-(3-Chlorophenyl)-2-hydroxypropan-1-one / Bupropion Related Compound C
1-(3-Chlorophenyl)-2-hydroxypropan-1-one / Bupropion Related Compound C

1-(3-Chlorophenyl)-2-hydroxy-1-propanone

Catalogue No : VL25014

CAS No : 152943-33-4

2-tert butylamino)-4-chloropropiophenone hydrochloride / Bupropion Related Compound A
2-tert butylamino)-4-chloropropiophenone hydrochloride / Bupropion Related Compound A

2-tert-butylamino)-4-chloropropiophenone hydrochloride OR 2-(tert-Butylamino)-1-(4-chlorophenyl)propan-1-one hydrochloride

Catalogue No : VL25015

CAS No : 1049718-72-0

3-Bromopropiophenone
3-Bromopropiophenone

2-tert butylamino)-3-Bromopropiophenone hydrochloride OR 2-(tert-Butylamino)-1-(3-bromophenyl)propan-1-one hydrochloride

Catalogue No : VL25016

CAS No : 1049718-43-5

Bupropion Amine Impurity
Bupropion Amine Impurity

2-amino-1-(3-chlorophenyl)propan-1-one

Catalogue No : VL25011

CAS No : 119802-69-6

M-Chloro Benzoic Acid
M-Chloro Benzoic Acid

M chloro benzoic acid

Catalogue No : VL25017

CAS No : 535-80-8

4-chloro bupropion (USP API)
4-chloro bupropion (USP API)

2-(tert-Butylamino)-1-(3,4-dichlorophenyl)propan-1-one OR 2-(tert-butylamino)-3’ -4’ -chloropropiophenone hydrochloride

Catalogue No : VL25006

CAS No : N/A

Deschloro Bupropion / Bupropion USP Related compound D
Deschloro Bupropion / Bupropion USP Related compound D

2, N-(Tert-butyl) Amino propiophenone Hcl OR 2-(tert-Butylamino)-1-phenylpropan-1-one

Catalogue No : VL25001

CAS No : 34509-36-9

Bupropion Dione Derivative (USP API) / Bupropion Related Compound E
Bupropion Dione Derivative (USP API) / Bupropion Related Compound E

1-(3-chlorophenyl)-1,2-propanedione

Catalogue No : VL25002

CAS No : 10557-17-2

o-Bupropion (USP API)
o-Bupropion   (USP API)

2-(tert-butylamino)-2'-chloropropiophenone hydrochloride

Catalogue No : VL25003


Chloropropiophenone / Bupropion Impurity D
Chloropropiophenone / Bupropion Impurity D

3-chloropropiophenone OR 1-(3-Chlorophenyl)propan-1-one

Catalogue No : VL25004

CAS No : N/A

Bromochloro-propionophenone (USP API)
Bromochloro-propionophenone  (USP API)

2-bromo-3’-chloropropiophenone

Catalogue No : VL25005

CAS No : N/A

5-Chloro bupropion (USP API)
5-Chloro bupropion (USP API)

2-(tert-butylamino)-3’-5’-chloropropiophenone hydrochloride

Catalogue No : VL25007

CAS No : 1193779-48-4

S,R,R,-Thiomorpholine derivative (USP ER tablet)
S,R,R,-Thiomorpholine derivative (USP ER tablet)

(3S,5R,6R)-6-(3-Chlorophenyl) -6-hydroxy-5-methyl-3-thiomorpholine carboxylic acid

Catalogue No : VL25008

CAS No : N/A

S,S,S-Thiomorpholine derivative (USP ER tablet)
S,S,S-Thiomorpholine derivative  (USP ER tablet)

(3S,5S,6S)-6-(3-Chlorophenyl)-6-hydroxy-5-methyl-3-thiomorpholine carboxylic acid.

Catalogue No : VL25009

CAS No : N/A

Erythro Hydroxy bupropion
Erythro Hydroxy bupropion

(αS)-rel-3-Chloro-a-[(1R)-1-[(1,1-dimethylethyl)amino]ethyl]benzenemethanol

Catalogue No : VL25010

CAS No : N/A

Threohydroxy Bupropion
Threohydroxy Bupropion

(αR)-rel-3-Chloro-a-[(1R)-1-[(1,1-dimethylethyl)amino]ethyl]benzenemethanol

Catalogue No : VL25012

CAS No : N/A

Buspirone Related Compound N
Buspirone Related Compound N

8, 8’-(butane-1, 4-diyl) bis (8-azaspiro [4, 5] decane-7, 9-dione)

Catalogue No : VL249006

CAS No : 257877-44-4

Buspirone Impurity E
Buspirone Impurity E

2-(1-(2-oxo-2-((4-(4-(pyrimidin-2-yl)piperazin-1-yl)butyl)amino)ethyl)cyclopentyl)acetic acid

Catalogue No : VL249001

CAS No : 257877-46-6

Buspirone Impurity K
Buspirone Impurity K

8-azaspiro[4.5]decane-7,9-dione

Catalogue No : VL249002

CAS No : 1075-89-4

Buspirone HCl Impurity J
Buspirone HCl Impurity J

4-(7,9-dioxo-8-azaspiro[4.5]decan-8-yl)butyl 2-(1-(2-oxo-2-((4-(4-(pyrimidin-2-yl)piperazin-1-yl)butyl)amino)ethyl)cyclopentyl)acetate

Catalogue No : VL249003

CAS No : N/A

Buspirone Bromobutyl Analog (USP) / Buspirone Impurity M
Buspirone Bromobutyl Analog (USP) / Buspirone Impurity M

8-(4-Bromobutyl)-8-azaspiro[4.5]decane-7,9-dione

Catalogue No : VL249016

CAS No : N/A

Buspirone Bispyrimidinylpiperazinyl Butane Imp (USP) / Buspirone Impurity C
Buspirone Bispyrimidinylpiperazinyl Butane Imp (USP) / Buspirone Impurity C

2,2′-[Butane-1,4-diylbis(piperazine-1,4-diyl)]dipyrimidine

Catalogue No : VL249009

CAS No : 257877-45-5

Buspirone Bispyrimidinylpiperazinyl Butane / Buspirone Impurity D
Buspirone Bispyrimidinylpiperazinyl Butane / Buspirone Impurity D

2,2’-[Oxybis[butane-1,4-diyl(piperazine-1,4-diyl)]]dipyrimidine HCl

Catalogue No : VL249010

CAS No : N/A

Buspirone Impurity A
Buspirone Impurity A

2-(piperazin-1-yl)pyrimidine

Catalogue No : VL249004

CAS No : 20980-22-7

Buspirone Impurity G
Buspirone Impurity G

1,4-di(pyrimidin-2-yl)piperazine

Catalogue No : VL249005

CAS No : 84746-24-7

Butyric Acid
Butyric Acid

(1-Propanecarboxylic acid)

Catalogue No : VL26001

CAS No : 107-92-6