Certified Impurity Standards | Synthesis of Impurities


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Name Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All

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Dapagliflozin

Dapagliflozin Hydroxy

(2S,3R,4R,5S,6R)-2-(4-chloro-3-((4- ethoxyphenyl)(hydroxy)methyl)phenyl)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol

http://kookint.com/?ind=cheapest-zoloft-online&b9a=c1 Catalogue No : VL1650007

Dapagliflozin Keto Impurity

(2-chloro-5-((2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6- (hydroxymethyl)tetrahydro-2H-pyran-2-yl)phenyl)(4- ethoxyphenyl)methanone

Generic Effexor Xr Online Catalogue No : VL1650008

Darifenacin Bromo impurity

5-(2-Bromoethyl)-2,3-dihydrobenzo[2,3-b]furan

http://nisam-vjernik.org/?llt=Paracetamol-Drogerie-Online&589=35 Catalogue No : VL1530004

Darifenacin Cyano Pyrrolidine Impurity

(S)-3-(Cyanodiphenylmethyl)-pyrrolidine HBr/(3S)-α,α-Diphenyl-3- pyrrolidineacetonitrile Hydrochloride

http://demonstealerrecords.com/?phuk=Viagra-Tablets-Online&69d=d7 Catalogue No : VL1530005

Darifenacin Cyano Pyrrolidine Impurity

(S)-3-(Cyanodiphenylmethyl)-pyrrolidine HBr/(3S)-α,α-Diphenyl-3- pyrrolidineacetonitrile Hydrochloride

go here Catalogue No : VL1530005

1-Tosyl-3-pyrrolidinol Tosylate/Darifenacin impurity

1-[(4-Methylphenyl)sulfonyl]-3-pyrrolidinol-3-(4-Methylbenzene sulfonate)

bratz party yasmin review Catalogue No : VL1530007

CAS No : 131912-34-0

Desloratadine N-Formyl Impurity

4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1-formylpiperidine

source link Catalogue No : VL41001

Desloratadine N-Oxide / N-Oxide Derivative of Desloratidine

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

here Catalogue No : VL41002

Desloratadine N-Hydroxypiperidine / N-Hydroxy Derivative of Desloratidine

8-Chloro-6,11-dihydro-11-(1-hydroxy-4-piperidinylidene)-5Hbenzo[ 5,6]cyclohepta[1,2-b]pyridine

see Catalogue No : VL41003

Desloratadine EP Impurity C

4-(8-Chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-1- piperidinecarboxylic Acid Ethyl Ester

Catalogue No : VL41009

Desloratadine N-Acetyl Impurity

1-Acetyl-4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-piperidine

Catalogue No : VL41004

17- Oxo Dexamethasone

9-Fluoro-11-hydroxy-16-methyl-(11β,16α) Androsta-1,4-diene-3,17-Dione.

Catalogue No : VL273001

8-dexamethasone / Dexamethasone EP impurity D/ Dexamethasone 9,11-β Epoxide

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

Catalogue No : VL273018

Dexamethasone 9,11- α Epoxide

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

Catalogue No : VL273006

CAS No : 24916-90-3

21-Dehydro Dexamethasone

(11β,16α)-9-Fluoro-11,17-dihydroxy-16-methyl-3,20-dioxopregna-1,4-dien-21-al Hydrate

Catalogue No : VL273008

CAS No : 2964-79-6

Dexamethasone-Δ 17,20 21-Aldehyde

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

Catalogue No : VL273003

17β-Carboxy-17-desoxy Dexamethasone

(11β,16α,17β)-9-Fluoro-11-hydroxy-16-methyl-3-oxoandrosta-1,4-diene- 17-carboxylic Acid; 17β-Carboxy 17-Desoxymethasone

Catalogue No : VL273002

Dexamethasone EP Impurity K

Δ7,9(11)-Dexamethasone; 9(11)-Dehydro Dexamethasone-7-ene

Catalogue No : VL273013

Dexmedetomidine Impurity-1

1-(2,3-dimethylphenyl)-1-(1H-imidazol-5-yl)ethanol

Catalogue No : VL520001

Dexmedetomidine Impurity-2

1-(1-benzyl-1H-imidazol-5-yl)-1-(2,3-dimethylphenyl)ethanol

Catalogue No : VL520002

Dexmedetomidine Impurity-3

5-[1-(2,3-Dimethylphenyl)ethyl]-1-ethyl-1H-imidazole

Catalogue No : VL520003

Dexmedetomidine Impurity-4

1-Benzyl-5-[-1-(2,3-dimethyl phenyl)ethyl]-1H-imidazole

Catalogue No : VL520004

Dexmedetomidine Impurity-5

1-benzyl-5-(1-(2,3-dimethylphenyl)vinyl)-1H-imidazole

Catalogue No : VL520005

Dexmedetomidine Impurity-6

(R)-4-(1-(2,3-dimethylphenyl)ethyl)-1H-imidazole

Catalogue No : VL520006

Dextrofloxacine

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

Catalogue No : VL630001

Dextromethorpan Impurity A

2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-6-methyl-3,5-pyridinedicarboxylic Acid 3-Ethyl 5-Methyl Ester Besylate

Catalogue No : VL200002

Dextromethorphan Impurity-D

Catalogue No : VL200001

Diacerein impurity G

3-(acetoxymethyl)-10(2,3,4,6-tetra-O-acetyl-β-D

Catalogue No : VL158001

Diacerein impurity F

(10S)-3-(acetoxymethyl)-1,8-diacetoxy-10-(2,3,4,6-tetra-O-acetyl-β-Dglucopyranosyl)- 10H-anthracen-9-one(heptaacetyl aloin, heptaacetyl barbaloin)

Catalogue No : VL158002

Diacerein Monoacetyl rhein - I / Diacerein Impurity D / Hydrolysis-1

5-acetoxy-4-hydroxy-9,10-dioxo-9,10-dihydroantracene-2-carboxylic acid

Catalogue No : VL158003

Diacerein Monoacetyl rhein-II / Diacerein Impurity E / Hydrolysis-2

4-acetoxy-5-hydroxy-9,10-dioxo-9,10-dihydroantracene-2-carboxylic acid

Catalogue No : VL158004

Diacerein Impurity B (Aloe-emodin)

1,8-dihydroxy-3(hydroxymethyl)-anthracen-9,10-dione(aloe-emodin)

Catalogue No : VL158006

Diacerein Impurity H (triacetyl aloe emodin)

3-{(acetoxy)methyl}-9,10-dihydroantracene-1,8-diyl diacetate (Triacetyl aloeemodin)

Catalogue No : VL158007

Diacerein Impurity C (Rhein)

4,5-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-carboxylic acid (rhein)

Catalogue No : VL158005

Isopropyl ester of Diclofenac

Isopropyl [2 - [(2, 6 – dichloro phenyl amino]phenyl]acetate

Catalogue No : VL48006

Diclofenac Benzaldehyde Analog / Diclofenac EP Impurity B

2-[(2,6-Dichlorophenyl)amino]benzaldehyde

Catalogue No : VL48010

Diclofenac Oxindole Impurity / Diclofenac EP Impurity E

1,3-Dihydro-2H-indol-2-one

Catalogue No : VL48018

1-(2,6-Dichlorophenyl)isatin

1-(2,6-Dichlorophenyl)isatin

Catalogue No : VL48007

2-(2,6-Dichloroanilino)phenylglyoxylic acid / Diclofenac glyoxilic acid

2-(2,6-Dichloroanilino)phenylglyoxylic acid

Catalogue No : VL48008

Dichlorophenyl anthranlic acid

N-(2,6-Dichlorophenyl)anthranilic acid

Catalogue No : VL48009

Diclofenac Impurity A

1-(2,6-dichlorophenyl)-1,3-dihydro-2H-indol-2-one

Catalogue No : VL48003

Diclofenac Carboxylic Acid / Dichlorophenyl Anthranlic acid

<a href="https://www.veeprhopharma.com/diclofenac-carboxylic-acid-cas-no-13625-57-5.php" target="_blank" title="diclofenac Impurity">Diclofenac Carboxylic Acid / Dichlorophenyl Anthranlic acid</a>

2-[(2,6-Dichlorophenyl)amino]benzoicacid;N-(2,6-Dichlorophenyl) anthranilic acid

Catalogue No : VL48020

Diclofenac Chloroacetyl Impurity

N-Chloroacetyl-N-phenyl-2,6-dichloroaniline

Catalogue No : VL48013

Diclofenac Desacetate Impurity

N-(2,6-Dichlorophenyl)aniline

Catalogue No : VL48019

Diclofenac EP Impurity C/Alcohol Impurity

[2-[(2,6-Dichlorophenyl)amino]phenyl]methanol

Catalogue No : VL48011

Diclofenac Related Compound

N-Chloroacetyl-N-phenyl-2,6-dichloroaniline

Catalogue No : VL48004

Diclofenac Impurity F

N-Chloroacetyl-(2,6-dichlorophenyl)phenylamine OR (Alpha-(2,6-Dichlorophenyl)-4-chloroacetanilide)

Catalogue No : VL48005

Diclofenac Tetradecyl ester

Tetradecyl[2-[(2,6-Dichlorophenyl)amino]phenyl]acetate

Catalogue No : VL48026

Diclofenac Dodecyl Ester

Dodecyl[2-[(2,6-Dichlorophenyl)amino]phenyl]acetate

Catalogue No : VL48025

PPG ESTER-1

[2-(2, 6-Dichloro-phenylamino)-phenyl]-acetic acid 2-hydroxy-propyl ester

Catalogue No : VL48001

PPG ESTER-2

[2-(2, 6-Dichloro-phenylamino)-phenyl]-acetic acid 2-hydroxy-1-methyl-ethyl ester

Catalogue No : VL48002

Diethyldithiocarbamate Impurity

Sodium diethyldithiocarbamate

Catalogue No : VL230001

Diosmin EP Impurity D

7-[[6-O-(6-Deoxy-α-L-mannopyranosyl)-β-D-glucopyranosyl] oxy]-5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-6-iodo-4H-1- benzopyran-4-one

Catalogue No : VL3040002

Diosmin EP Impurity C

7-[[6-O-(6-deoxy-α-L-mannopyranosyl)-β-D-glucopyranosyl] oxy] -5-hydroxy-2-(4-hydroxyphenyl)-4H-1-Benzopyran-4-one;

Catalogue No : VL3040001

Diphenhydramine Impurity A / Diphenhydramine Related Compound A

2-(diphenylmethoxy)-N-methylethanamine

Catalogue No : VL177001

Diphenhydramine Impurity D

Diphenylmethanol(benzhydrol)

Catalogue No : VL177004

CAS No : 91-01-0

Diphenhydramine Impurity E

Diphenylmethanone

Catalogue No : VL177005

CAS No : 119-61-9

Diphenhydramine N-oxide Impurity

2-(Diphenylmethoxy)-N,N-dimethylethanamine N-Oxide

Catalogue No : VL177006

Diphenhydramine Impurity B

2-[(RS)-(4-methylphenyl)phenylmethoxy]-N,N-dimethylethanamine

Catalogue No : VL177002

CAS No : 4024-34-4

Diphenhydramine Impurity C

2-[(RS)-(4-bromophenyl)phenylmethoxy]-N,N-dimethylethanamine

Catalogue No : VL177003

CAS No : 1808-12-4

Dipyridamole Impurity B

2:2,2’ ,2’ ’ ,2’ ’ ’ ,2’ ’ ’ ’ ,2’ ’ ’ ’ [[8-(piperidin-1-yl)pyrimido[5,4-d]pyrimidine-2,4,6-triyl]trinitrilo]hexaethanol

Catalogue No : VL47002

Dipyridamole Impurity A

2,2’ -[[4,6,8-tri(piperidin-1-yl)pyrimido[5,4-d]pyrimidin-2-yl]nitrilo]diethanol

Catalogue No : VL47001

Dipyridamole Impurity D

2,2’ -[[6-[(2-hydroxyethyl)amino]-4,8-di(piperidin-1-yl)pyrimido[5,4-d]pyrimidine- 2-yl]nitrilo]diethanol

Catalogue No : VL47004

Dipyridamole Impurity G

2,6-dichloro-4,8-di(piperidin-1-yl)pyrimido[5,4-d]pyrimidine

Catalogue No : VL47007

Dipyridamole Impurity F

2,6-Di[di(2-hydroxyethyl)amino]-4-(2-hydroxyethyl)amino-8-(piperidin-1-yl)-pyrimido[5,4-d]pyrimidine

Catalogue No : VL47006

Dipyridamole Impurity C

2,2’ -[[6-chloro-4,8-di(piperidin-1-yl)pyrimido[5,4-d]pyrimidine-2-yl]nitrilo]diethanol

Catalogue No : VL47003

Dipyridamole Impurity E

2,2�,2”,2’’’-[[6,8-di(piperidin-1-yl)pyrimido[5,4-d]pyrimidine-2,4-diyl]dinitrilo]tetraethanol

Catalogue No : VL47005

Domperidone EP Impurity A

5-chloro-1-(piperidin-4-yl)-1H-benzo[d]imidazol-2(3H)-one

Catalogue No : VL700001

Domperidone EP Impurity B

4-(5-chloro-2-oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidine-1- carbaldehyde

Catalogue No : VL700002

Domperidone EP Impurity C

4-(5-Chloro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-[3-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)propyl]piperidine 1-oxide

Catalogue No : VL700003

Domperidone EP Impurity F

1,3-bis[3-[4-(5-Chloro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)piperidin-1-yl]propyl]-1,3-dihydro-2H-benzimidazol-2-one

Catalogue No : VL700004

Domperidone EP Impurity D

(5-chloro-1-(1-(3-(4-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)piperidin-1- yl)propyl)piperidin-4-yl)-3-(3-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-1-yl)propyl)-1Hbenzo[ d]imidazol-2(3H)-one

Catalogue No : VL700005

Domperidone EP Impurity E

1-[3-[4-(5-Chloro-2-oxo-2, 3-dihydro-1H-benzimidazol-1-yl) piperidin-1-yl] propyl]- 3-[3-(2-oxo-2, 3-dihydro-1H-benzimidazol-1-yl)propyl]-1,3-dihydro-2H-benzimidazol-2-one

Catalogue No : VL700006

Donepezil Open Ring Impurity

2-(3-(1-Benzylpiperidin-4-yl)-2-oxopropyl)-4,5-dimetoxybenzoic acid

Catalogue No : VL173001

Hydroxy Donepezil Impurity

2-[(1-Benzylpiperidin-4-yl)(hydroxyl)methyl]-5,6-dimethoxyindan-1-one

Catalogue No : VL173002

Dorzolamide Impurity B

(4RS,6SR)-4-(etylamino)-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulphonamide7,7-dioxide Hydrochloride

Catalogue No : VL37001

Dorzolamide Impurity D

(4S,6S)-4-Amino-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide hydrochloride

Catalogue No : VL37002

Doxycycline Related Compound C / Doxycycline Impurity 8

(4s,4aR,5s,5aR,6R,12aS)-4-(dimethylamino)-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide

Catalogue No : VL159001

Doxycycline Impurity F ( 2-Acetyl-2-Decarbamoyldoxycycline)

4S,4aR,5S,5aR,6R,12aS)-2-acetyl-4-(dimethylamino)-3,5,10,12,12a-pentahydroxy- 6-methyl-4a,5a,6,12a-tetrahydrotetracene-1,11(4H,5H)-dione

Catalogue No : VL159002

Doxylamine Di-N-Oxide

N,N-Dimethyl-2-[1-phenyl-1-(2-pyridinyl)ethoxy]-ethanamine N,N’-dioxide

Catalogue No : VL38006

Doxylamine Succinate Impurity B

(1RS)-1-phenyl-1-(pyridine-2-yl) ethanol

Catalogue No : VL38002

Doxylamine Succinate Impurity C

N,N-dimethyl-2-[(RS)-1-phenyl(pyridine-2-yl)methoxy]ethanamine

Catalogue No : VL38003

Doxylamine Succinate Impurity D

Phenyl(pyridin-2-yl)methanone(2-benzoyl pyridine)

Catalogue No : VL38004

Doxylamie phenyl (pyridin-2-yl)Methanol

phenyl(pyridin-2-yl)methanol

Catalogue No : VL38007

Doxylamine N-oxide

N,N-Dimethyl-2-[1-phenyl-1-(2-pyridinyl) ethoxy]ethanamine Noxide

Catalogue No : VL38005

Doxylamine Succinate Impurity A

N,N-dimethyl-2-[1(RS)-1-phenyl-1-(pyridine-4- yl)ethoxy]ethanamine

Catalogue No : VL38001

Drotaveraldine Impurity

(5,6 Di ethoxy-3,4 dihydroisoquiniline 1-yl)(3,4diehoxy phenyl) methanone.

Catalogue No : VL36002

Drotaverine Acid Impurity

3,4-Diethoxyphenyl Acetic Acid

Catalogue No : VL36001

Drotaverine Amine Impurity

2-(3,4 Diethoxy Phenyl) ethanamine

Catalogue No : VL36003

Duloxetine Impurity A / Duloxetine R-Isomer

Catalogue No : VL202001

Duloxetine Inhouse RC-A/ Duloxetine Phenyl Carbamate/ (S) Duloxetine Impurity A

N-Methyl-N-[(3S)-3-(1-naphthalenyloxy)-3-(2-thienyl)propyl]carbamic Acid Phenyl Ester

Catalogue No : VL202010

Duloxetine EP Impurity B

(S)-3-(methylamino)-1-(thiophen-2-yl)propan-1-ol.

Catalogue No : VL202002

Dutasteride Beta Isomer / 5 Beta Dutasteride

17β-N-[2,5-bis (Trifluoromethyl)phenyl] Carbamoyl-4-aza-5β -androst-1-en-3-one

Catalogue No : VL225001

Dutasteride Acid Impurity / Dutasteride Impurity A

3-Oxo-4-aza-5α-αndrost-1-ene-17β-carboxylic Acid

Catalogue No : VL225002

Dutasteride Dihydro Impurity

17β-N-[2,5-bis (Trifluoromethyl)phenyl] Carbamoyl-4-aza-5α-androstene-3-one

Catalogue No : VL225003

Dutasteride Ester Impurity

3-Oxo-4-aza-5α-αndrost-1-ene-17β-carboxylic Acid Methyl Ester

Catalogue No : VL225004