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Name of parent drug:
Ofloxacin

Ofloxacin EP Impurity B
Ofloxacin EP Impurity B

(RS)-9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-2,3-dihydro-7H-pyrido-[1,2,3- de]-1,4-benzoxazin-7-one

Catalogue No : VL205001

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Ofloxacin EP Impurity E
Ofloxacin EP Impurity E

9-Fluoro-2,3-dihydro-3-methyl-7-oxo-10-(1-piperazinyl)-7H-pyrido[1,2,3-de]-1,4- benzoxazine-6-carboxylic Acid

Catalogue No : VL205002

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Ofloxacin EP Imurity C
Ofloxacin EP Imurity C

(RS)-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-pyrido-[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid

Catalogue No : VL205003

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Ofloxacin EP Impurity F
Ofloxacin EP Impurity F

4-[(RS)-6-carboxy-9-fluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de]-1,4- benzoxazine-10-yl]-1-methylpiperazine-1-oxide

Catalogue No : VL205004

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Olanzapine Impurity A / Olanzapine Related Compound A
Olanzapine Impurity A / Olanzapine Related Compound A

5-Methyl-2-((2-nitrophenyl)amino)-3-thiophenecarbonitrile

Catalogue No : VL109001

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Olanzapine Related Compound C / Olanzapine EP Impurity C
Olanzapine Related Compound C / Olanzapine EP Impurity C

1(Chloromethyl)1methyl4(2methyl10Hthieno[2,b][1,5]benzodiazepin-4-yl)-piperazinium Chloride

Catalogue No : VL109003

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Olanzapine Related Compound-03
Olanzapine Related Compound-03

2-Methyl-4-[4-ethyl-1-piperazinyl]-10H-thieno [2,3-b][1,5] -benzodiazepine

Catalogue No : VL109004

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Olanzapine Related Compound-07
Olanzapine Related Compound-07

2-Amino-5-methyl-thiophene-3-carbonitrile

Catalogue No : VL109005

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Olanzapine Related Compound-08
Olanzapine Related Compound-08

O-Fluronitrobenzene

Catalogue No : VL109006

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Olanzapine Thio lactum
Olanzapine Thio lactum

(1Z)-1-[4,5-Dihydro-2-(4-methyl-1-piperazinyl)-4-thioxo-3H-1,5-benzodiazepin-3- ylidene]-2-propanone

Catalogue No : VL109007

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Olanzapine lactam
Olanzapine lactam

(3Z)-1,3-Dihydro-4-(4-methyl-1-piperazinyl)-3-(2-oxopropylidene)-2H-1,5- benzodiazepin-2-one

Catalogue No : VL109008

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Olanzapine N-Oxide
Olanzapine N-Oxide

2-Methyl-4-(4-methylpiperazin-1-yl)-10H-benzo[b] thieno[2,3-e][1,4]diazepine 4’-N-oxide

Catalogue No : VL109009

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Olanzapine Related Compound B / Olanzapine EP Impurity B
Olanzapine Related Compound B / Olanzapine EP Impurity B

5,10-Dihydro-2-methyl-4H-thieno[2,3-b][1,5] benzodiazepin-4-one

Catalogue No : VL109002

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Olanzapine Demethyl Impurity
Olanzapine Demethyl Impurity

2-Methyl-4-(1-piperazinyl)-10Hthieno[2,3-b][1,5]benzodiazepine

Catalogue No : VL109010

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Olmesartan EP Impurity D / Trityl Olmesartan
Olmesartan EP Impurity D / Trityl Olmesartan

((5-methyl-2-oxo-1,3-dioxol-4-yl)methyl4-(2-hydroxypropan-2-yl)-2propyl-1((2’- (1-trityl-1H-tetrazol-5-yl)biphenyl-4-yl)methyl-1H-imidazole-5-carboxylate

Catalogue No : VL184005

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N-alkylated Olmesartan
N-alkylated Olmesartan

(5-methyl-2-oxo-1,3-dioxol-4-yl)methyl4-(2-hydroxy propan-2-yl)-1-((2’-(1-((5- methyl-2-oxo-1,3-dioxol-4-yl)methyl)-1H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-propyl-1Himidazol- 5-carboxylate

Catalogue No : VL184009

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Olmesartan Related Compound A
Olmesartan Related Compound A

(1-{[2’-(1H-Tetrazol-5-yl)biphenyl-4-yl]methyl}-4,4-dimethyl-2-propyl-1H-furo[3,4- d]imidazol-6(4H)-one)

Catalogue No : VL184001

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Olmesartan Dimer / Olmesartan Dimer Ester Impurity
Olmesartan Dimer / Olmesartan Dimer Ester Impurity

4-[1-[[[4-(1-hydroxy-1-methylethyl)-2-propyl-1-[[2’-(1H-tetrzol-5-yl)biphenyl-4- yl]methyl]imidazol-5-yl]carbonyl]oxy]-1-methylethyl)-2-propyl-1-[[2’-(1H-tetrzol-5-yl)biphenyl- 4-yl]methyl]imidazole-5-carboxylic acid

Catalogue No : VL184007

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Olmesartan Ethyl ester
Olmesartan Ethyl ester

Ethyl 1-((2’-(1H-tetrazol-5-yl)biphenyl-4-yl)methyl)-4-(2-hydroxypropan-2-yl)-2-propyl-1H-imidazol-5-carboxylate

Catalogue No : VL184003

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Olmesartan Trityl Alcohol
Olmesartan Trityl Alcohol

triphenylmethanol

Catalogue No : VL184004

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Olmesartan EP Impurity C / Olmesartan Olefinc Acid
Olmesartan EP Impurity C / Olmesartan Olefinc Acid

(5-methyl-2-oxo-2H-1,3-dioxol-4-yl)methyl4-(2-propen-2-yl)-2-propyl-1-({4-[2-(2H-1,2,3,4-tetrazol-5-yl)phenyl]phenyl}methyl)-1H-imidazole-5-carboxylate

Catalogue No : VL184006

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Olmesartan EP Impurity A
Olmesartan EP Impurity A

4-(2-hydroxypropan-2-yl)-2-propyl-1-({4-[2-(2H-1,2,3,4-tetrazol-5-yl)phenyl]phenyl}methyl)-1H-imidazole-5-carboxylic acid

Catalogue No : VL184002

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Alpha Hydroxy Olopatadine / Olopatadine Related Compound A
Alpha Hydroxy Olopatadine / Olopatadine Related Compound A

11-[3-(Dimethylamino) propylidene]-6, 11—dihydro-α-hydroxy dibenz[b,e]oxepin-2-acetic acid

Catalogue No : VL720001

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Olopatadine E-isomer
Olopatadine E-isomer

{(11E)-11-[3-(dimethylamino)propylidene]-6,11-dihydrodibenzo[b,e]oxepin-2- yl}acetic acid

Catalogue No : VL720002

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Omeprazole Impurity B
Omeprazole Impurity B

2-[(RS)-[(3,5-dimethylpyridin-2-yl)methyl]sulphinyl]-5-methoxy-1 H-benzimidazole.

Catalogue No : VL112003

CAS No : 110374-16-8

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Omeprazole Impurity I
Omeprazole Impurity I

4-methoxy-2-[[(5-methoxy-1H-benzimidazol-2-yl) sulphonyl]methyl]-3,5-dimethylpyridine 1-oxide

Catalogue No : VL112008

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Omeprazole Impurity H
Omeprazole Impurity H

2-[(RS)-[(4-chloro-3,5-dimethylpyridin-2-yl)methyl]sulfinyl]-5-methoxy-1H-benzimidazole

Catalogue No : VL112007

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Omeprazole Related Compound B / Omeprazole Impurity A
Omeprazole Related Compound B / Omeprazole Impurity A

5-methoxy-1H-benzimidazole-2-thiol

Catalogue No : VL112002

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Omeprazole Impurity C
Omeprazole Impurity C

5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphanyl]-1H- benzimidazole

Catalogue No : VL112004

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Omeprazole Chloro Compound / Omeprazole 6-Hydroxy Impurity
Omeprazole Chloro Compound / Omeprazole 6-Hydroxy Impurity

6-(chloromethyl)-3, 5-dimethylpyridin-2-ol

Catalogue No : VL112009

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Omeprazole Related Compound A / Omeprazole Impurity D
Omeprazole Related Compound A / Omeprazole Impurity D

5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphonyl]-1Hbenzimidazole

Catalogue No : VL112001

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Omeprazole Impurity XI
Omeprazole Impurity XI

2-Chloromethyl-3,5dimethyl-4-methoxypyridine Hydrochloride

Catalogue No : VL112010

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Omeprazole Impurity F & G mixture
Omeprazole Impurity F & G  mixture

8-methoxy-1,3-dimethyl-12-thioxopyrido[1’,2’:3,4]imidazol[1,2-a]-benzimidazol-2-(12H)-one. Imp-G: 9-methoxy-1,3-dimethyl-12-thioxoypyrido[1’,2’:3,4]-imidazol[1,2-a]-benzimidazol-2-(12H)-one

Catalogue No : VL112006

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Omeprazole Impurity E
Omeprazole Impurity E

5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphanyl]-1H-benzimidazole 1’ -oxide

Catalogue No : VL112005

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Oseltamivir EP Impurity B / Oseltamivir 2-Azido Impurity / Oseltamivir Related Compound A
Oseltamivir EP Impurity B / Oseltamivir 2-Azido Impurity / Oseltamivir Related Compound A

Ethyl (1R,2R,3S,4R,5S)-4-acetamido-5-amino-2-azido-3-(1-ethylpropoxy)cyclohexanecarboxylate OR ((3S,4R,5S)-Ethyl 4-acetamido-5-amino-2-azido-3-(pentan-3-yloxy)cyclohexanecarboxylate)

Catalogue No : VL900001

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Oseltamivir EP Impurity C / Oseltamivir Acid
Oseltamivir EP Impurity C / Oseltamivir Acid

(3R,4R,5S)-4-Acetamido-5-amino-3-(1-ethylpropoxy)cyclohex-1-ene-1-carboxylic acid

Catalogue No : VL900002

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Oseltamivir Caboxylic acid Impurity
Oseltamivir Caboxylic acid Impurity

(3R,4R,5S)-4-Acetamido-5-amino-3-(1-ethylpropoxy)cyclohex-1-ene-1-carboxylic acid

Catalogue No : VL900003

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Oseltamivir triphenyl phosphine oxide
Oseltamivir triphenyl phosphine oxide

Triphenylphosphine oxide

Catalogue No : VL900006

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Oxybutynin EP Impurity A / Cyclohexyl Analogue of Oxybutynin
Oxybutynin EP Impurity A / Cyclohexyl Analogue of Oxybutynin

4-(diethylamino)but-2-ynyl (RS)-2-(cyclohex-3-enyl)-2-cyclohexyl-2- hydroxyacetate

Catalogue No : VL215001

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Oxybutynin EP Impurity B / Diphenyl Analogue
Oxybutynin EP Impurity B / Diphenyl Analogue

4-(diethylamino)but-2-ynyl 2-hydroxy-2,2-diphenylacetate

Catalogue No : VL215002

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Oxybutynin EP Impurity E / Ethylpropyl Analogue
Oxybutynin EP Impurity E / Ethylpropyl Analogue

4-(ethylmethylamino)but-2-ynyl (RS)-2-cyclohexyl -2-hydroxy-2-phenylacetateHydrochloride

Catalogue No : VL215003

CAS No : 121577-72-7

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