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Name of parent drug:

Lacidipine


Lacidipine Impurity C
Lacidipine Impurity C

Diethyl (Z)-4-{2-[2-(tert-butoxycarbonyl)vinyl]phenyl}-1,4- dihydro-2,6-dimethylpyridine-3,5-dicarboxylate

Catalogue No : VL2840001

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Lamivudine EP Impurity G/ Lamivudine S-Sulfoxide
Lamivudine EP Impurity G/ Lamivudine S-Sulfoxide

4-Amino-1-[(2R,3S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl] pyrimidin-2(1H)-one S-oxide

Catalogue No : VL12003

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Lamivudine Enantiomer/Lamivudine EP Impurity D
Lamivudine Enantiomer/Lamivudine EP Impurity D

4-Amino-1-[(2S,5R)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1H)-one

Catalogue No : VL12006

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Lamivudine Diastereomer / Lamivudine EP Impurity B
Lamivudine Diastereomer / Lamivudine EP Impurity B

4-Amino-1-[(2S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone

Catalogue No : VL12001

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Lamotrigine EP Impurity E
Lamotrigine EP Impurity E

2,3-Dichlorobenzoic acid

Catalogue No : VL980010

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2,3-Dichlorobenzoyl Cyanide / Lamotrigine Impurity
2,3-Dichlorobenzoyl Cyanide / Lamotrigine Impurity

2,3-Dichlorobenzoyl Nitrile

Catalogue No : VL980011

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Lamotrigine Impurity G
Lamotrigine Impurity G

6-(2,4-dichlorophenyl)-1,2,4-triazine-3,5-diamine

Catalogue No : VL980009

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Lamotrigine Impurity / N2-Methyllamotrigine
Lamotrigine Impurity / N2-Methyllamotrigine

6-(2,3-dichlorophenyl)-3-imino-2-methyl-1,2,4-triazin-5-amine

Catalogue No : VL980012

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Lamotrigine Impurity
Lamotrigine Impurity

N,N’-[6-(2,3-Dichlorophenyl)-1,2,4-triazine-3,5-diyl]bis[2,3-Dichlorobenzamide]

Catalogue No : VL980013

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Lamotrigine EP Impurity C / Z-Iminoguanidine Intermediate for Lamotrigine
Lamotrigine EP Impurity C / Z-Iminoguanidine Intermediate for Lamotrigine

6-(2,3-Dichlorophenyl)-3-imino-3,4-dihydro-1,2,4-triazin-5-amine

Catalogue No : VL980006

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Lamotrigine EP Impurity B / E-Isomer of Iminoguanidine For Lamotrigine
Lamotrigine EP Impurity B / E-Isomer of Iminoguanidine For Lamotrigine

2-Cyano-2-[(3,4-dichlorophenyl)hydrazono]acetamide

Catalogue No : VL980007

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Lamotrigine EP Impurity D / Dioxo Lamotrigine
Lamotrigine EP Impurity D / Dioxo Lamotrigine

6-(2,3-Dichlorophenyl)-1,2,4-triazine-3,5(2H,4H)-dione; Dioxo Lamotrigine

Catalogue No : VL980008

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Lansoprazole N-Oxide / Lansoprazole EP Impurity A
Lansoprazole N-Oxide / Lansoprazole EP Impurity A

2-[[[3-Methylpyridinyl] methyl]sulfinyl]-1H-benzimidazole

Catalogue No : VL92001

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Lansoprazole EP Impurity D/1H-Benzimidazol-2-ol/2-Hydroxybenzimidazole
Lansoprazole EP Impurity D/1H-Benzimidazol-2-ol/2-Hydroxybenzimidazole

1,3-Dihydro-2H-benzimidazol-2-one; 2-Benzimidazolinone; 2,3-Dihydro-2-oxo-1Hbenzimidazole; 2-Benzimidazolol; 2-Benzimidazolone; N,N’ -(1,2-Phenyleneurea);

Catalogue No : VL92003

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Lansoprazole Acid Impurity
Lansoprazole Acid Impurity

3-methyl-4-((trifluoromethoxy)methyl)picolinic acid

Catalogue No : VL92002

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Latanoprost Related Compound D
Latanoprost Related Compound D

Isopropyl (Z)-7-{(1R,2R,3R,5S)-2-[(R)-5-phenyl-3-(triethylsilyloxy)pentyl]- 3,5-bis(triethylsilyloxy)cyclopentyl}hept-5-enoate

Catalogue No : VL93002

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Latanoprost Related Compound E
Latanoprost Related Compound E

((Z)-7-[(1R,2R,3R,5S)-3,5-dihydroxy-2-[(3R)-3-hydroxy-5-phenylpentyl]cyclopentyl]-5-heptenoic acid)

Catalogue No : VL93003

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Leflunomide Impurity C
Leflunomide Impurity C

5-methyl-N-(3-(trifluoromethyl) phenyl) isoxazole-4-carboxamide

Catalogue No : VL1060001

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Leflunomide Impurity A
Leflunomide Impurity A

4-(trifluoromethyl) aniline

Catalogue No : VL1060002

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Leflunomide Impurity B
Leflunomide Impurity B

N-(4-Trifluoromethylphenyl)-2-cyano-3-hydroxycrotonamide

Catalogue No : VL1060003

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Leflunomide Impurity D
Leflunomide Impurity D

5-Methylisoxazole-4-carboxylic acid

Catalogue No : VL1060004

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Leflunomide Impurity E
Leflunomide Impurity E

3-methyl-N-(4-(trifluoromethyl) phenyl) isoxazole-4-carboxamide

Catalogue No : VL1060005

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Leflunomide Cyano Impurity
Leflunomide Cyano Impurity

2-Cyano-N-[4-(trifluoromethyl)phenyl]- acetamide

Catalogue No : VL1060007

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Levetiracetam Carboxylic Acid Impurity
Levetiracetam Carboxylic Acid Impurity

(S)-2-(2-oxo-pyrrolidin-1-yl) butanoic acid

Catalogue No : VL1280003

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Levetiracetam D-Isomer
Levetiracetam D-Isomer

(2R-2-(2-Oxopyrrolidin-1-yl)butanamide)

Catalogue No : VL1280004

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Levetiracetam R-Isomer / Levetiracetam Impurity D (EP)
Levetiracetam R-Isomer / Levetiracetam Impurity D (EP)

(2R-2-(2-Oxopyrrolidin-1-yl)butanamide)

Catalogue No : VL1280001

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Levocetirizine S-Isomer
Levocetirizine S-Isomer

(S)-2-[2-[4-[(4-Chlorophenyl)phenylmethyl]piperazin-1-yl]ethoxy]acetic acid dihydrochloride

Catalogue No : VL1550001

CAS No : 163837-48-7

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Levocetirizine Impurity 6
Levocetirizine Impurity 6

N,N-Bis(2-chloroethyl)benzenesulfonamide

Catalogue No : VL1550002

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Levofloxacin R-Isomer / Dextrofloxacin
Levofloxacin R-Isomer / Dextrofloxacin

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

Catalogue No : VL860015

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Levofloxacin Related Compound C (Ethyl Ester)
Levofloxacin Related Compound C (Ethyl Ester)

Ethyl(S)-9fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7Hpyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate

Catalogue No : VL86006

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Levofloxacin Related Compound B
Levofloxacin Related Compound B

(S)-9,10,difluro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid

Catalogue No : VL86005

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Levofloxacin Related Compound A (N-Desmethyl Impurity)
Levofloxacin Related Compound A (N-Desmethyl Impurity)

((S)-9-fluoro-3-methyl-10-(piperazin-1-yl)-7-oxo-2,3-dihydro-7H-pyrido[1,2,3- de][1,4]benzoxazine-6-carboxylic acid)

Catalogue No : VL86001

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Levofloxacin Related Compound F
Levofloxacin Related Compound F

(S)-3,7-dihydro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2H- [1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid

Catalogue No : VL860010

CAS No : 117620-85-6

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Levofloxacin Diamine Impurity
Levofloxacin Diamine Impurity



Catalogue No : VL86007

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Levofloxacin Impurity F (Levofloxacin N-oxide/Impurity-5)
Levofloxacin Impurity F (Levofloxacin N-oxide/Impurity-5)

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

Catalogue No : VL86002

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Levofloxacin Related Compound E / Levofloxacin EP Impurity 4
Levofloxacin Related Compound E / Levofloxacin EP Impurity 4

(3R)-9-(2-(methylamino)ethylamino)-8-fluoro-2,3,3a,6-tetrahydro-3-methyl-6-oxobenzo[de]chromene-5-carboxylic acid

Catalogue No : VL86003

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Levofloxacin Formyl Impurity 4
Levofloxacin Formyl Impurity 4

(3R)-9-(2-(N-Formyl-methylamino)-(N-Formyl-ethylamino))-8-fluoro- 2,3,3a,6-tetrahydro-3-methyl-6-oxobenzo[de]chromene-5- Carboxylic acid

Catalogue No : VL86004

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Desfluoro Levofloxacin
Desfluoro Levofloxacin

(S)-2,3-Dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido(1,2,3-de)(1,4)benzoxazine-6-carboxylic acid

Catalogue No : VL86008

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Levofloxacin Decarboxy Impurity
Levofloxacin Decarboxy Impurity

(S)-9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-2H-[1,4]oxazino [2,3,4-ij]quinolin-7(3H)-one

Catalogue No : VL860011

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Levofloxacin Piperazine Analogue
Levofloxacin Piperazine Analogue

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

Catalogue No : VL86009

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Levosulpride EP Impurity A
Levosulpride EP Impurity A

((S)-1-ethylpyrrolidin-2-yl)methanamine

Catalogue No : VL580001

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Levothyroxine T4-Hydroxyacetic Acid Impurity
Levothyroxine T4-Hydroxyacetic Acid Impurity

2-hydroxy-2-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl) acetic acid

Catalogue No : VL1320010

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Levothyroxine Impurity F
Levothyroxine Impurity F

2-amino-3-(4-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenoxy)- 3,5-diiodophenyl)propanoic acid

Catalogue No : VL1320011

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Levothyroxine EP Impurity C, T3-Acetic Acid (USP)
Levothyroxine EP Impurity C, T3-Acetic Acid (USP)

[4-(4-Hydroxy-3-iodophenoxy)-3,5-diiodophenyl]acetic acid

Catalogue No : VL1320009

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Levothyroxine Impurity K / 3,3’,5’-Triiodo-L-Thyronine
Levothyroxine Impurity K / 3,3’,5’-Triiodo-L-Thyronine

(2S)-2-Amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3-iodophenyl] propanoic acid

Catalogue No : VL1320013

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Levothyroxine N-Formyl Impurity / N-Formyl-T4 (USP)
Levothyroxine N-Formyl Impurity / N-Formyl-T4 (USP)

N-Formyl-O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine

Catalogue No : VL1320014

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Levothyroxine N-Acetyl Impurity / N-Acetyl-T4 (USP)
Levothyroxine N-Acetyl Impurity / N-Acetyl-T4 (USP)

N-Acetyl-O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine

Catalogue No : VL1320015

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Liothyronine / Levothyroxine EP Impurity A
Liothyronine / Levothyroxine EP Impurity A

(2S)-2-Amino-3-[4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl]propanoic acid

Catalogue No : VL1320016

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Levothyroxine N-Methylamide
Levothyroxine N-Methylamide

(S)-2-Amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]-Nmethylpropanamide

Catalogue No : VL1320017

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Levothyroxine T4 Amine O-Methyl /Levothyroxine O-Methyl-Tetraiodothyroethylamine
Levothyroxine T4 Amine O-Methyl /Levothyroxine O-Methyl-Tetraiodothyroethylamine

2-[4-(3,5-Diiodo-4-methoxyphenoxy)-3,5-diiodophenyl]ethanamine

Catalogue No : VL1320018

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Levothyroxine EP Impurity B
Levothyroxine EP Impurity B

(2S)-2-Amino-3-[4-(3-chloro-4-hydroxy-5-iodophenoxy)-3,5-diiodophenyl]propanoic acid

Catalogue No : VL1320012

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Levothyroxine T4-Acetamide (USP)/Levothyroxine Acetamide Impurity
Levothyroxine T4-Acetamide (USP)/Levothyroxine Acetamide Impurity

2-(4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)acetamide.

Catalogue No : VL1320002

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Levothyroxine T4 Aldehyde/ Levothyroxine EP Impurity I
Levothyroxine T4 Aldehyde/ Levothyroxine EP Impurity I

4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodobenzaldehyde

Catalogue No : VL1320001

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Levothyroxine O-Methyl Impurity
Levothyroxine O-Methyl Impurity

2-amino-3-(4-(3, 5-diiodo-4-methoxyphenoxy)-3, 5-diiodophenyl) propanoic acid

Catalogue No : VL1320007

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3,5,3’,5’-Tetraiodo Thyrolactic Acid
3,5,3’,5’-Tetraiodo Thyrolactic Acid

3-[4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]lactic Acid

Catalogue No : VL1320006

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Lidocaine BP Impurity C
Lidocaine BP Impurity C

N-(2,6-Dimethylphenyl)acetamide

Catalogue No : VL1040003

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Lidocaine BP Impurity D
Lidocaine BP Impurity D

N-(2,6-Dimethylphenyl)-2-(ethylamino)acetamide HCl

Catalogue No : VL1040004

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Lidocaine BP Impurity F / Lidocaine 2,3-Dimethyl Analog
Lidocaine BP Impurity F / Lidocaine 2,3-Dimethyl Analog

2-(Diethylamino)-N-(2,3-dimethylphenyl) acetamide

Catalogue No : VL1040020

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Lidocaine BP Impurity G
Lidocaine BP Impurity G

N-(2,6-Dimethylphenyl)-2-[(1-methylethyl)amino]acetamide HC

Catalogue No : VL1040007

CAS No : 35891-87-3 (HCl salt)

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Lidocaine BP Impurity I / USP Lidocaine Impurity I / Lidocaine 2,4-Dimethyl Analog
Lidocaine BP Impurity I / USP Lidocaine Impurity I / Lidocaine 2,4-Dimethyl Analog

2-(Diethylamino)-N-(2,4-dimethylphenyl)acetamide

Catalogue No : VL1040008

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Lidocaine BP Impurity K / N-Desethyl-N-Methyl Lidocaine HCl
Lidocaine BP Impurity K / N-Desethyl-N-Methyl Lidocaine HCl

N-(2,6-Dimethylphenyl)-2-(ethylmethylamino)acetamide

Catalogue No : VL1040019

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Lidocaine Impurity J
Lidocaine Impurity J

2-(Diethylamino)-N-(2,5-dimethylphenyl)acetamide HCl

Catalogue No : VL1040009

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Lidocaine BP Impurity B / Lidocaine N-Oxide
Lidocaine BP Impurity B / Lidocaine N-Oxide

2-(Diethylazinoyl)-N-(2,6-dimethylphenyl)acetamide

Catalogue No : VL1040011

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Lidocaine Related Compound H / Lidocaine BP Impurity H
Lidocaine Related Compound H / Lidocaine BP Impurity H

2-Chloro-N-(2,6-dimethylphenyl)acetamide; 1-Chloroacetylamino-2,6- dimethylbenzene; 2-Chloro-2’,6’-acetoxylidide; 2’,6’-Dimethyl-2-chloroacetanilide;

Catalogue No : VL1040014

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Linagliptin Bromo Impurity / LIP-2-E-Bromobutene
Linagliptin Bromo Impurity / LIP-2-E-Bromobutene

(R, E)-8-(3-aminopiperidin-1-yl)-7-(3-bromobut-2-en-1-yl)-3-methyl-1-((4- methylquinazolin-2-yl) methyl)-1H-purine-2, 6(3H, 7H)-dione

Catalogue No : VL870001

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N-Aminoacyl Linagliptin / Linagliptin Amino Acyl Impurity
N-Aminoacyl Linagliptin / Linagliptin Amino Acyl Impurity

(R)-1-(1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl) methyl)-2, 6-dioxo-2, 3, 6, 7-tetrahydro-1H-purin-8-yl) piperidin-3-yl) urea

Catalogue No : VL870003

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Lisinopril EP Impurity E / Lisinopril R,S,S Isomer
Lisinopril EP Impurity E / Lisinopril R,S,S Isomer

2S)-1-[(2S)-6-Amino-2-[[(1R)-1-carboxy-3-phenylpropyl]amino]hexanoyl] pyrrole- 2-carboxylic acid

Catalogue No : VL600001

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Lisinopril EP Impurity F / Lisinopril Cyclohexyl analogue
Lisinopril EP Impurity F / Lisinopril Cyclohexyl analogue

(2S)-1-[(2S)-6-amino-2-[[(1S)-1-carboxy-3-cyclohexylpropyl]amino] hexanoyl]pyrrole-2-carboxylic acid

Catalogue No : VL600002

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Lisinopril Impurity D / Lisinopril R, S, S – Diketopiperazine
Lisinopril Impurity D / Lisinopril R, S, S – Diketopiperazine

(2S)-2-[(3S,8aR)-3-(4-Aminobutyl)-1,4-dioxohexahydropyrrolo[1,2-a]pyrazin- 2(1H)-yl]-4-phenylbutanoic acid

Catalogue No : VL600005

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Lopinavir Related Compound C / Lopinavir Divalinate (USP)
Lopinavir Related Compound C / Lopinavir Divalinate (USP)

(2R)-N-[(1S,2S,4S)-1-Benzyl-2-hydroxy-4-[[(2S)-3-methyl2-[2-oxotetrahydro pyrimidin-1(2H)-yl]butanoyl]amino]5-phenylpentyl]-3-methyl-2-[2-oxotetra hydropyrimidin1(2H)-yl]butanamide

Catalogue No : VL1470007

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Dehydro Loratadine Isomer - A Impurity
Dehydro Loratadine Isomer - A Impurity

Ethyl 4-(8-chloro-5, 6-dihydro-11H-benzo [5, 6] cyclohepta [1, 2-b] pyridine-11- ylidene) piperidin-2-ene-1-carboxylate

Catalogue No : VL810001

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Dehydro Loratadine Isomer - B Impurity
Dehydro Loratadine Isomer - B Impurity

Ethyl 4-(8-chloro-11H-benzo [5, 6] cyclohepta [1, 2-b] pyridine-11-ylidene) piperidine-1-carboxylate

Catalogue No : VL810002

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Hydroxy deacyl analog - Loratadine Impurity
Hydroxy deacyl analog - Loratadine Impurity

8-Chloro-5, 6-dihydro-11-hydroxy-11-(1-methylpiperidin-4-yl)-11H-benzo [5, 6] cyclohepta [1, 2-b] pyridine

Catalogue No : VL810003

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Hydroxy Loratadine
Hydroxy Loratadine

Ethyl 4-(8-chloro-11-hydroxy-5, 6-dihydro-11Hbenzo [5, 6] cyclohepta [1, 2-b] pyridin-11-yl) piperidin-1-carboxylate

Catalogue No : VL810004

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Losartan Potassium Related Compound A
Losartan Potassium Related Compound A

4’-((2-butyl-4-chloro-formyl-1H-imidazol-1-yl)methyl)biphenyl-2-carbonitrile

Catalogue No : VL214001

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Losartan Potassium Related Compound B
Losartan Potassium Related Compound B

4’-((2-butyl-4-chloro-5-(hydroxymethyl)-1H-imidazol-1-yl)methyl)biphenyl-2-carbonitrile

Catalogue No : VL214002

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Losartan Impurity B
Losartan Impurity B

(2’-(1H-tetrazol-5-yl)-[1,1’-biphenyl]-4-yl)methanol

Catalogue No : VL214009

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Losartan Bromo Impurity
Losartan Bromo Impurity

5-(4’-(bromomethyl)-[1,1’-biphenyl]-2-yl)-1H-tetrazole

Catalogue No : VL214010

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<a href="CAS-No-1159977-26-0-Losartan-Potassium-Impurity-K.php" target="_blank">Losartan Potassium Related Compound K</a>

1-((2’-(2H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-butyl-4-chloro-1H-imidazole-5-carbaldehyde

Catalogue No : VL214003

CAS No : 1159977-26-0

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<a href="CAS-No-1006062-27-6-Losartan-Potassium-Impurity-J.php" target="_blank">Losartan Potassium Related Compound J</a>

(1-((2’-(2H-tetrazol-5-yl)biphenyl-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methyl acetate

Catalogue No : VL214004

CAS No : 1006062-27-6

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<a href="CAS-No-83857-96-9-Losartan-Potassium-Impurity-D.php" target="_blank">Losartan Potassium Related Compound D</a>

2-butyl-4-chloro-1H-imidazole-5-carbaldehyde

Catalogue No : VL214005

CAS No : 83857-96-9

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<a href="CAS-No-114799-13-2-Losartan-Potassium-Impurity-C.php" target="_blank">Losartan Potassium Related Compound C</a>

(1-((2’-(1H-tetrazol-5-yl)-[1,1’-biphenyl]-4-yl)methyl)-2-butyl-5-chloro-1H-imidazol-4-yl)methanol

Catalogue No : VL214006

CAS No : 114799-13-2

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<a href="CAS-No-230971-72-9-Losartan-Impurity-M.php" target="_blank">Losartan Impurity-M / 2H-Dimer</a>

(1-((2’-(2-((1-((2’-(1H-tetrazol-5-yl)-[1,1’-biphenyl]-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methyl)-2H-tetrazol-5-yl)-[1,1’-biphenyl]-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methanol

Catalogue No : VL214007

CAS No : 230971-72-9

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<a href="CAS-No-230971-71-8-Losartan-Potassium-Impurity-L.php" target="_blank">Losartan Potassium Impurity-L / Losartan 1H Dimer</a>

(1-((2’-(1-((1-((2’-(1H-tetrazol-5-yl)-[1,1’-biphenyl]-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methyl)-1H-tetrazol-5-yl)-[1,1’-biphenyl]-4-yl)methyl)-2-butyl-4-chloro-1H-imidazol-5-yl)methanol

Catalogue No : VL214008

CAS No : 230971-71-8

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