| Acyclovir | BP | Guanine (Imp B) | 2-amino-1,7- dihydro-6H- purin-6-one |
| Adapalene | INH | | a) Brom- onapthoic acid |
| Adapalene | INH | | b) methyl- 6-bromo-2- naphthoate |
| Adapalene | INH | | c) 2-(1-adam- antyl)-anisole |
| Adapalene | INH | | d) Anisole-2- (1-adamantyl) -4-bromo |
| Adapalene | INH | | e) methylester of adapelene |
| Adapalene | INH | | f) 3,3-diada- mantyl- 4,4� - dimethoxy biphenyl |
| Alprazolam | INH | Triaz- olam | |
| Amlodipine Besilate | BP | Amlod- ipine Imp D | 3-ethyl-5-ethyl -2-[(2-amino- ethoxymethyl] -4-(2-chloro- phenyl)-6- meth-ylpyridine -3,5-dicarbo- xylate |
| Amlodipine Mesylate | BP | Amlod- ipine Imp D | 3-ethyl 5-methyl- 2-[(2-amino- ethoxymethyl] -4-(2-chloro- phenyl)-6-met- hylpyri-dine -3,5-dicarb- oxylate |
| Amoxycillin | BP | a) imp D | a) Sodiumsalt of amox- icilloic acid |
| Amoxycillin | BP | b) imp. C | b) Diketo piper- azineamox- ycillin |
| BP | a) imp D | a) Sodium salt of ampiclloic- acid |
| Ampicillin | BP | b) imp. C | b) Diketop- iperazine of ampicillin |
| Amplodipine Maleate | BP | Amlod- ipine Imp D | 3-ethyl 5- methyl-2- [(2-amino- ethoxymethyl] -4-(2-chlor- ophenyl) -6-methy- lpyridine- 3,5-dicarb- oxylate |
| Anagrelide HCL | INH | | a) Methyl-5-6- dichloro-3,4- dihydro 2[1H] iminoquin- azolin-3- acetate |
| Anagrelide HCL | INH | | b) Ethyl-5,6- dichloro3,4- dihydro2[1H] iminoquin- azolin-3- acetatehydro- bromide |
| Anagrelide HCL | INH | | c) 6,7,8- trichloro 1,5-dihydro imidazo (2,1-b) quinazolin-2 (3H)-one |
| Anagrelide HCL | INH | | d) 5,6-dichloro 3,4-dihydro -amino quinazolin -3-aceticacid |
| Anagrelide HCL | INH | | e) 5,6-dichloro 3,4-dihydro 2[1H]imino quinazolin |
| Anastrozole | INH | | a) a,a,a',a'- Tetramethyl- 5(1H-1,3,4- triazol-1-yl- methyl)-1,3- benzene-diacet- onitrile |
| Anastrozole | INH | | b) 2,2'-(5- methyl-1,3- phenylene) -di-(2-methyl propiononitrile) |
| Anastrozole | INH | | c) 3,5-bis (cyano-1- methylethyl benzylbr- omide) |
| Artemether | INH | | a)Dihydro- artemisinin |
| Artemether | INH | | b) Alpha- Artemether (Oil cointa- ining30% impurity) |
| Artesunate | INH | | Dihydro- artemisinin |
| Beclometh- asone Dipropionate | BP | a) imp J | a) 9,11b- epoxy-16b- methyl-3,20- dioxo-9b- regna-1,4- diene-17,21- diyl dipropanoate, |
| Beclometh- asone Dipropionate | BP | b) imp H | b) 9-chloro- 11b,21-dihy- droxy-16b- methyl-3,20- dioxopregna- 1,4-dien-17- yl propanoate (beclometa- sone 17-propi- onate), |
| Beclometh- asone Dipropionate | BP | c) imp G | c) 9-chloro- 11b,17,21-trihy- droxy-16b- methyl- pregna-1,4- diene-3,20- dione(becl- ometasone), |
| Beclometh- asone Dipropionate | BP | d) imp D | d) 9-bromo- 11b-hydroxy -16b-methyl- 3,20-diox- opregna -1, 4-diene- 17,21-diyl- dipro-panoate, |
| Beclometh- asone Dipropionate | BP | e) imp A | e) 9-chloro- 11b,17-dihy- droxy-16b- methyl-3,20- dioxopregna- 1, 4-dien- 21-yl prop- anoate (becl- ometasone 21-propionate), |
| Beclometh- asone Dipropionate | BP | f) imp B | f) 21-(acetyl- oxy)-9-chloro- 11b-hydro- xy-16b-methyl- 3,20-dioxo- pregna-1, 4-dien-17-yl propa-noate (beclometa- sone-21- acetate 17- propionate), |
| Beclometh- asone Dipropionate | INH | g)Beclo- metha- sone 21- butyrate | g) 9-chloro- 11b,17-dihydr- oxy-16b-methyl- 3,20-dioxopre- gna-1,4-dien- 21-yl buta- noate |
| Bicalutamide | INH | | a) (±)N-[4-cya- no-3(triflu- oro-methyl) phenyl]-3[(4-flu- oro phenyl) thio]-2 hyd- roxy-2-methyl- propanamide |
| Bicalutamide | INH | | b) (±)N-[2- cyano-3(triflu- oromethyl) phenyl]-3[(4- fluorophenyl) sulfinyl]-2- hydroxy-2- methylpropa- namide |
| Bicalutamide | INH | | c) (±)N-[4- cyano-3(trif- luoromethyl) phenyl]-3 [(4-fluoro phenyl)sulfinyl] -2-hydroxy-2- methylpropa- namide |
| Brimonidine Tartarate | INH | | a) 5-Bromo, 6-amino quinaxaline |
| Brimonidine Tartarate | INH | | b) 6-amino quina-xaline |
| Budesonide | BP | | a) 16a,17-(1RS)- butylidenebis (oxy)]-11b- hydroxy-3,20- dioxopregna- 1,4-dien-21-al, |
| Budesonide | BP | | b) 11b,16a,17, 21-tetra- hydroxypregna -1,4-diene-3, 20-dione, |
| Budesonide | BP | | c) 16a,17-[1- methylethyli- denebis(oxy)] -11b,21-dihydr- oxypregna-1, 4-diene-3,20- dione, |
| Budesonide | INH | | d) 11b,17,21- tetrahydrox- ypregna-1, 4-diene-3,20- dione |
| Budesonide | INH | | e) Acetaldehyde |
| Capace- tabine | INH | | a) 2�3�-dioacetyl- 5�deoxy-5 fluor- ocytidine |
| Capace- tabine | INH | | b) 4�-bromom- ethyl-5�-deoxy- 5 fluoro-N-[(pen- tyloxy)carboxyl] cytidine |
| Capace- tabine | INH | | c) 2�3�-diocetyl -5�-deoxy-5 fluoro N-[(pent- yloxy)carbonyl] cytidine |
| Capace- tabine | INH | | d) 5'-deoxy-5- fluorocytidine |
| Captopril | BP | Imp A | (2S,2¢S)-1,1¢- [disulphaned- iylbis[(2S)-2- methyl-1-oxop- ropane-3, 1-diyl]-bis [pyrro-lidine- 2-carb-oxylic] acid(captopril -disulphide). |
| Carboplatin | INH | Cisiod- oplatin | |
| Carboplatin | BP | Imp B | cyclobutane-1, 1-dicarboxylic acid |
| Carvedilol | BP | a) Imp B | a) 1,1¢-[[2-(2- methoxyph- enoxy)ethyl] nitrilo]bis[3- (9H-carbazol -4-yloxy) propan-2-ol], |
| Carvedilol | INH | | b) Epoxy- Carbazole |
| Carvedilol | BP | c) Imp A | c) 1-[[9-[2- hydroxy-3- [[2-(2-metho- xyphenoxy) ethyl]amino] propyl]-9H- carbazol-4-yl] oxy]-3-[[2- (2-methox- yphenoxy) ethyl]amino] propan-2-ol, |
| Carvedilol | INH | | d) 1-propanol Carbazole |
| Carvedilol | INH | | e) C V Side Chain |
| Carvedilol | INH | | f) AEP Compound |
| Carvedilol | INH | | g) Carvedilol polymorph Form-I |
| Carvedilol | BP | h) Imp C | h) (2RS)-1- [benzyl[2- (2-methoxy- phenoxy) ethyl]amino]-3- (9H-carbazol -4-yloxy) propan-2-ol |
| Carvedilol | INH | | i) 4-hydroxy Carbazole |
| Celecoxib | INH | | CX-I Compound |
| Celecoxib | INH | | HSA compound |
| Ciclesonide | INH | | a) Ciclesonides- isomer(11P, 16?)-16,17[[(S)- cyclohexy- lmethylene] bis(oxy)]-11- hydroxy-21-(2 methyl-1- oxopropoxy) pregna-1,4- diene,3,20- dione |
| Ciclesonide | INH | | b) Propyla- nalogue |
| Ciclesonide | INH | | c) 16-? hydroxyl prednisolone |
| Ciclesonide | INH | | d) n- butyryl derivative |
| Ciclesonide | INH | | e) Isobytyryl derivative |
| Ciclesonide | INH | | f) Cyclohexyl derivative |
| Ciclesonide | INH | | g) Benzyl derivative |
| Citalopram | INH | | a) Citalopram Impurity 'B' |
| Citalopram | INH | | b) Citalopram Impurity 'D' |
| Citalopram | INH | | c) Citalopram Impurity 'A' |
| Citalopram | INH | | c) Citalopram Impurity 'A' |
| Citalopram | INH | | d) Citalopram Impurity 'C' |
| Citalopram | INH | | e) Des-bromo Citalopram Impurity |
| Citalopram | INH | | f) 5-chloro pthalide |
| Clarithro mycin | INH | | a) Clarithr- omycin N-oxide |
| Clarithro mycin | EP | b) Imp D | b) N-Desmethyl clarithromycin |
| Clarithro mycin | INH | | c) N-Desmethyl Erythromycin A |
| Clarithro mycin | EP | d) Imp H | d) N-Formyl Clarithromycin |
| Clonazepam | BP | Imp A | a) 2-Amino2-�- Chloro- 5-Nitrobenzo- phenone |
| Clonazepam | USP | Related comp- ound 'B' | a) 2-Amino2-�- Chloro- 5-Nitrobenzo- phenone |
| Clopidogrel bisulphate | INH | | a) Racemate impurity of Clopidogrel |
| Clopidogrel bisulphate | INH | | b) Acid Impurity of CLP |
| Desloratidine | INH | | a) N-formyl Desloratidine |
| Desloratidine | INH | | b) Loratidine |
| Diazepam | USP | Related comp- ound 'B' | 3-Amino-6- chloro-1- methyl-4- phenylcarbostyril |
| Didanosine | INH | Hypox- anthine Imp A | 1,7-dihydro- 6H-purin-6- one(hypox anthine) |
| Didanosine | INH | Inosine- Imp B | 9-b-D-ribofur- anosyl-1,9- dihydro-6H- purin-6- one(inosine) |
| Didanosine | INH | | 2',3'-dideoxy- 2',3'-didehydro inosine sodium |
| Donepezil HCL | INH | | a) 4-[(5,6- Dimethoxy- 1-indanon -2-yl)methylene] pyridine |
| Donepezil HCL | INH | | b) 1-Benzyl- 4-[(5,6- dimethoxy- 1-indanon-2- yl)methylene] pyridine bromide |
| Donepezil HCL | INH | | c) 2-(4-Piperidinyl- methyl)-5,6- dimethoxy-1- indanone |
| Donepezil HCL | INH | | d) 1-Benzyl-4 -[5,6-dimethoxy- 1-oxoindan]methyl pyridine |
| Duloxetine Hydrochloride | INH | DLX - Racemic mixture | (±)-N-Methyl-3- (1-napthalenyloxy)- 3-(2-thienyl) propana- minoxalate |
| Emtricifabine | INH | | a) Emtricifabine Carboxylic acid impurity |
| Emtricifabine | INH | | b) Isomer impurity of Emtricifabine |
| Emtricifabine | INH | | c) 4-Amino, 6fluoro 1- [(2R,5S)-2 (hydroxy- methyl)- 1,3 oxathiolan- 5-yl}-2(1H) pyrimidinone |
| Emtricifabine | INH | | d) Emtricitabine hydroxy Impurity |
| Emtricifabine | INH | | e) Emtricitabine sulfoxide Impurity |
| Es- omeprazo- le magnesium dihydrate | INH | Sulphide impurity | 5-Methoxy-2 -(4-methoxy -3,5-dimethylp- yridin-2-yl- methylthio) 1H-benzi- midazole |
| Es- omeprazo- le magnesium dihydrate | INH | N-oxide impurity | 5-Methoxy-2 -[[(4-methoxy -3,5-dimethylp- yridin-2-yl) methyl] sulphinyl]- 1H-benzimidazole- 1'-oxide |
| Es- omeprazo- le magnesium dihydrate | INH | Sulphon eimpurity | 5-Methoxy- 2-[[(4-meth- oxy-3, 5-dimethylp- yridine-2-yl) methyl] sulphonyl]-1H- benzimidazole |
| Es- omeprazo- le magnesium dihydrate | INH | Desm- ethoxy impurity | 5-Methoxy-2 -[[(3,5-dimethyl- pyridine-2-yl] methyl] sulphinyl]- 1H-benzi- midazole |
| Es- omeprazo- le magnesium dihydrate | INH | Omep- razole sulphone | 5-methoxy-2 -[[(4-methoxy -3,5-dimethylpy- ridine-2-yl) methyl] sulphonyl]- 1H-benzimi- dazole |
| Es- omeprazo- le magnesium dihydrate | INH | Ome- prazole sulphide | 5-methoxy-2 -(4-methoxy -3,5-dimethylp- yridin-2-yl- methylthio) 1H-benzi midazole |
| Es- omeprazo- le magnesium dihydrate | INH | Omep- razole N-oxide | 5-methoxy-2- [[(4-methoxy-3, 5-dimethyl- pyridin-2-yl) methyl] sulphinyl]- 1H-benzimi- dazole-1'- oxide |
| Estramustine | INH | | a) Estramustine |
| Estramustine | INH | | b) 17-b phosphate estradiol |
| Etoposide | INH | | (5R,5aR,8aR,9S) -9-(b-D-glucopy- ranosyloxy)- 5-(4-hydroxy- 3,5-dimetho- xyphenyl) -5,8,8a,9- tetrahy- droisobenzofuro [5,6-f][1,3] benzodioxol-6 (5aH)-one (lignan P) |
| Etoposide | INH | | 4� de methyl epipodoph- yllotoxin |
| Etoposide | INH | | (5R,5aR,8aR,9S) -9-[[4,6-O-[(R)- ethylidene]-a-D- glucopyranosyl] oxy]-5- (4-hydroxy- 3, 5-dimethoxy- phenyl)-5,8,8a,9- tetrahydroisoben- zofuro[5,6-f] [1,3]benzo- dioxol-6(5aH)- one(a-etop- oside) |
| Etoposide | INH | | (5R,5aS,8aR,9S) -9-[[4,6-O-[(R)- ethylidene] -b-D-glucopy- ranosyl]oxy]-5- (4-hydroxy- 3,5- dimethoxyp- henyl)-5,8,8a,9- tetrahydroiso- benzofuro [5,6-f][1,3] benzodioxol- 6(5aH)-one (picroethylidene- lignan P;cis- etoposide) |
| Etoposide | INH | | 4�-O-Carbob- enzyloxy 4�-demethyl epipodop- hyllotoxin |
| Etoposide | INH | | (5R,5aR,8aR,9S) -5-[4-[[(benz- yloxy)carbonyl] oxy]-3,5- dimethoxy- phenyl]- 9-[[4,6-O-[(R)- ethylidene]-b- D-glucopyran- osyl]oxy]-5,8, 8a,9-tetrahy- droisobenzofuro [5,6-f][1,3] benzodioxol- 6(5aH)- one(4¢-carbo- benzoyloxy- ethyliden |
| Etoposide | INH | | (5R,5aR,8aR,9S) -9-[[4,6-O-[(R)- ethylidene] -b-D-glucopy- ranosyl]oxy]-5- (3,4,5-trimetho- xyphenyl)-5, 8,8a,9- tetrahydrois- obenzofuro [5,6-f][1,3] benzodioxol -6(5aH)-one (4-O-methylethy- lidenelignan P) |
| Famciclovir | INH | | a) Famciclovir Impurity-1 |
| Famciclovir | INH | | b) Famciclovir Impurity-2 |
| Famciclovir | INH | | c) Des acetyl famciclovir |
| Famotidine | BP | a) Imp C | a) 3-[[[2- [(diamino- methylene) amino]thiazol -4-yl]methyl] sulphanyl]-N -sulphamoyl- propanamide, |
| Famotidine | BP | b) Imp D | b) 3-[[[2- [(diamino- methylene) amino]thiazol -4-yl]methyl] sulphanyl] propanamide, |
| Famotidine | BP | c) Imp F | c) 3-[[[2- [(diamino- methylene) amino]thia- zol-4-yl] methyl] sulphanyl] propanoic acid, |
| Felodipine | BP | imp A | Ethylmethyl 4- (2,3-dichlor- ophenyl)-2,6- dimethylpyridine- 3,5-dicarboxylate |
| Felodipine | BP | Imp B | Dimethyl 4-(2,3- dichlorophenyl) -2,6-dimethyl -1,4-dihydro- pyridine-3,5- dicarboxylate |
| Felodipine | BP | Imp C | Diethyl 4- (2,3- dichlorophenyl) -2,6-dimethyl -1,4-dihydro- pyridine -3,5-dicarb- oxylate |
| Felodipine | USP | Related comp- ound A | Ethylmethyl 4- (2,3-dichlo- rophenyl) -2,6-dimeth- ylpyridine-3, 5-dicarboxylate |
| Fenoteral Hydro bromide | BP | a) Imp A | a) (1RS)-1-(3,5- dihydoxyphenyl) -2-[[(1SR)-2 -(4-hydroxy- phenyl)- 1-methylethyl] amino]ethanol, |
| Fluconazole | INH | | a) Fluconazole Form-I |
| Flutamide | BP | imp A | 4-Nitro-3- trifluorom- ethylaniline |
| Flutamide | BP | Imp D | 3-trifluoromethyl- aniline |
| Flutamide | INH | | 3-trifluorom- ethylisobu- tyranilide |
| Flutamide | INH | | ortho flutamide |
| Fluticasone propionate | BP | a) Imp A | a)6a,9-difluoro- 11b-hydroxy- 16a-methyl-3- oxo-17-(propano- yloxy)androsta-1, 4-diene-17b- carboxylic acid, |
| Fluticasone propionate | BP | b) Imp F | b) 6a,9- difluoro- 17-[[(fluoro- methyl) sulphanyl] carbonyl]- 16a-methyl-3, 11-dioxoan- drosta-1,4-dien- 17a-yl propanoate, |
| Fluticasone propionate | BP | c) Imp H | c) 17,17¢- (disulpha- nediyldica- rbonyl)bis(6a,9- difluoro- 11b-hydroxy- 16a-methyl- 3-oxoand- rosta-1, 4-dien-17 a-yl) dipro- panoate, |
| Fluticasone propionate | INH | | d) S-methyl Fluticasone propionate |
| Fluticasone propionate | INH | | e) Fluticasone base |
| Fluticasone propionate | INH | | f) Fluticasone acetate |
| Fluticasone propionate | INH | | g) Dimmer impurity of Fluticasone Propionate |
| Fluticasone propionate | INH | | h) Fluticasone Stage-V(iodo fluticasone) |
| Fluticasone propionate | INH | | i) Fluticasone Stage-III(thio propionate) |
| Formoteral | BP | a) Imp A | a) 1-(3- amino-4- hydroxyphenyl)-2- [[2-(4-methoxyp- henyl)-1-methyl- ethyl}amino} ethanol |
| Formoteral | BP | b) Imp C | b) N-[2-hydroxy-5 [1-hydroxy-2-[[2- (4-metho- xyphenyl- 1- methylethyl] amino]ethyl] phenyl]acetonide |
| Gabapentin | INH | | 3,3-penta- methylene- 5-butyrol- actam |
| Gatifloxacin sesquihydrate | INH | | Desmethyl Gatifloxacin |
| Gatifloxacin sesquihydrate | INH | | Gatifloxacin ester |
| Gatifloxacin sesquihydrate | INH | | Gatifloxacin acid |
| Granisetron Hydrochloride | BP | imp A | 2-methyl- N-[(1R,3r, 5S)-9-methyl- 9-azabicy- clo[3.3.1] non-3-yl]- 2H-indazole- 3-carboxamide |
| Granisetron Hydrochloride | BP | Imp B | N-[(1R,3r,5S)- 9-methyl-9- azabicyclo [3.3.1]non- 3-yl]- 1H-indazole- 3-carboxamide |
| Granisetron Hydrochloride | BP | Imp D | 1-methyl- 1H-indazole- 3-carboxylic acid |
| Granisetron Hydrochloride | BP | Imp E | (1R,3r,5S)- 9-methyl- 9-azabicyclo [3.3.1] nonan-3-amine |
| Imatinib mesylate | INH | | a) N-(2-Methyl- 5-aminophenyl)- 4-(3-Pyridyl)- 2-Pyrimidine Amine. |
| Imatinib mesylate | INH | | b) 4-[(4- Methyl-1- Piperazinyl) methyl]-N- [4-methyl- 3-[4-(3- Pyridinyl)- 2-Pyrimidinyl] chlorom- ethyl-amino] phenyl] Benzamide. |
| Irinotican Hydrochloride Trihydrate | INH | | a) 7-ethyl camptothecin |
| Irinotican Hydrochloride Trihydrate | INH | | b) 10-hy- droxy-7- ethylcampto- thecin |
| Lamivudine | INH | | a) 4-Amino- 1-(2-(hydroxy- methyl)1,3 oxath- iolan-5-yl}-2(1H) pyrimidinone |
| Lamivudine | BP | b) Imp A | b) Carboxylic acidimpurity of Lamivudine |
| Lamivudine | INH | | c) Salicylic acid |
| Lamivudine | INH | | a) 2,3-dichloro- benzoylcyanide |
| Lamivudine | INH | | b) 1-(1�cyano, 1-amino- guanidine), 2,3-dichlo- robenzene |
| Lansoprazole | INH | Pharm- europa Imp B | 2-[[[3-methyl-4- (2,2,2-trifluoro- ethoxy)-2- pyridyl]-methyl] sulphonyl]- benzimidazole |
| Lansoprazole | INH | Lansop- razole Sulphide | 2-[{[3-methyl- 4-(2,2,2-trifluoro ethoxy)-2- pyridinyl]- methyl} thio]-1H- benzimid- azole |
| Lansoprazole | INH | Lansop- razole N-oxide | 2-[[[3-methyl-4- (2,2,2-trifluoro- ethoxy)-2- pyridinyl] methyl] sulphinyl-1H- benzimidazole- 1-oxide |
| Leflunomide | INH | | a) N- (4-trifluoro- methylphenyl)- 2-cyano- 3-hydroxy crotonamide |
| Leflunomide | INH | | b) 2-Ethoxy- methylene acetoacetic acid-4-trilfuorom- ethylanilide |
| Leflunomide | INH | | c) 5-Methy- lisoxazole- 4-carboxylic acid |
| Leflunomide | INH | | d) 3-Methyl- N-[4-trifluo- romethyl) phenyl]-4- isoxazole carboxamide |
| Letrozole | INH | | a) 4-fluor- obenzonitrile |
| Letrozole | INH | | b) (1H-1,2, 4-triazol-1- yl-methylene) 4-benzonitrile |
| levofloxacine Hemihydrate | INH | | a) (-)-(S)- 9-fluoro-2, 3-dihydro- 3-methyl-10- (1-piperazinyl)- 7-oxi-7H- pyrido [1,2,3-del]- 1,4-benzox- azine-6- carboxylic acid |
| levofloxacine Hemihydrate | INH | | b) Chloromethyl esterimpurity |
| levofloxacine Hemihydrate | INH | | c)N-Ethyl Levofloxacin impurity |
| Losartan potassium | INH | | a) LSR-I compound |
| Losartan potassium | INH | | b) TTBB |
| Losartan potassium | INH | | c) BCFI |
| Losartan potassium | INH | | d) Triphenyl methanol |
| Mebendazole | BP | Imp A | a) (2-Amino- 1H-benzoi- midazole- 5-yl)phenyl- methanone |
| Mitoxantrone Hydrochloride | INH | | Leuco 1, 4,5,8-tetrahy- droxy anthra- quinone |
| Mometasone furoate | INH | | a) Mometasone base |
| Mometasone furoate | INH | | b) Mometasone difuroate |
| Mometasone furoate | INH | | c) 21-hydroxy Mometasone Furoate |
| Mometasone furoate | INH | | d) mometasone furoate epoxide |
| Nevirapine | BP | a) Imp C | a) 4-methyl- 11-propyl- 5,11-dihydro- 6H-dipyrido [3,2-b:2¢,3¢-e] [1,4]diazepin-6- one. |
| Nevirapine | BP | b) Imp A | b) 11-ethyl -4-methyl- 5,11-dihydro- 6H-dipyrido [3,2-b: 2¢,3¢-e] [1,4]diaz- epin-6-one, |
| Nifedipine | BP | a) Imp A | a) dimethyl 2,6-dimethyl-4- (2-nitrophenyl) pyridine-3, 5-dicarbo- xylate (nitrophenylpy- ridine analogue), |
| Nifedipine | BP | b) Imp B | b) dimethyl 2,6-dimethyl-4- (2-nitroso- phenyl) pyridine-3,5- dicarb- oxylate (nitrosop- henylpyridine analogue), |
| Nifedipine | USP | Nitrop- heny- lpyridine Analog | Dimethyl 4-(2-nitrop- henyl)-2, 6-dimeth- ylpyridine- 3,5-dicarbo- xylate |
| Nifedipine | USP | Nitros- opheny- lpyridine Analog | Dimethyl 4-(2-nitro- sophenyl)- 2,6-dime- thylpyridine- 3,5-dicar- boxylate |
| Norfloxacin | INH | | a) N-5 Compound |
| Norfloxacin | INH | | b) N-7 Compound |
| Norfloxacin | INH | | c) Chloro analogue of Norfoxacin |
| Ofloxacin | BP | imp A | 9,10-difluoro-3- methyl-7- oxo-2,3- dihydro- 7H-pyrido [1,2,3-de]- 1,4-benzo xazine- 6-carboxylic acid |
| Ofloxacin | BP | Imp E | 9-Fluoro-3- methyl- 7-oxo-10- piperazin- 1-yl)-2,3- dihydro-7H- pyrido[1,2,3- de]-1,4- benzoxazine- 6-carboxylic acid |
| Olanzapine | INH | | a) Olanzapine ethyl analogue |
| Olanzapine | INH | | b) 4-hydroxy impurity of Olanzapine |
| Olanzapine | INH | | c) Olanzapine Form-II |
| Olanzapine | INH | | d) Olanzapine Form-I |
| Olanzapine | INH | | e) Des-N-Methyl Olanzapine |
| Olanzapine | INH | | f) ZP-I Compound |
| Olanzapine | INH | | g) ZP-II Compound |
| Olanzapine | INH | | h) ZP-III Compound |
| Olmesartan RNH 6270 | | | 5-(1-Hydroxy-1-methylethyl)-2-propyl-3-[2’-(2H-tetzazol-5-yl) biphenyl-4-ylmethyl]-3H-imidazole-4-carbxylic acid |
| Olmesartan RNH 6363 | | | 4-isoprepenyl-2-propyl-1-[[[2’-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl]lmidazole-5-carboxylic acid |
| Olmesartan RNH 6363 | | | 2-Butyl-5-isopropenyl-3-[2’-(2H-tetrazol-5-yl)biphenyl-4-ylmethyl]-3H-imidazole-4-carboxylic acid 5-methyl-2-oxo-[1,3]dioxol -4-ylmmethyl ester |
| Olmesartan RNH 8276 | | | 4-[l-[[[4-(1-hydroxy-1-methylethyl) -2-propyl-1-[[2’-(1H-tetrazol-5-yl) biphenyl-4-yl]methyl]imidazole-5-yl] carbonyl]oxy]-1-methylethyl]-2-propyl -1-[[2’-(1H-tetrazol-5-yl)biphenyl-4-yl] methyl]imidazole-5-carboxylic acid |
| Omeprazole | BP | imp A | 5-methoxy- 1H-benzimi- dazole-2-thiol. |
| Omeprazole Magnesium | BP | Imp B | 2-[(RS)- [(3,5-dime- thylpyridin- 2-yl)methyl] sulphinyl] -5-methoxy -1H-benzi- midazole |
| Omeprazole Sodium | BP | Imp C | 5-methoxy- 2-[[(4-met- hoxy-3,5- dimethylp- yridin-2-yl) methyl] sulphanyl] 1H- benz- imidazole. (ufiprazole) |
| Omeprazole Sodium | BP | Imp D | 5-methoxy- 2-[[(4-met- hoxy-3,5- dimethyl- pyridin-2-yl) methyl] sulphonyl]- 1H-benzim- idazole (omeprazole sulphone) |
| Omeprazole Sodium | BP | Imp E | 4-methoxy- 2-[[(RS)- (5-methoxy- 1H-benzim- idazol-2-yl)sulp- hinyl]methyl]-3, 5-dimethy- lpyridine 1-oxide |
| Omeprazole Sodium | INH | B5 Hydro- chloride | 2-hydrox- ymethyl 3, 5-dimethyl -4-methoxy pyridineh- ydrochloride |
| Ondansetron hcl | BP | a) Imp A | a) (3RS)-3- [(dimethy- lamino) methyl]- 9-methyl- 1,2,3,9- tetrahydro- 4H-carbazol- 4-one, |
| Ondansetron hcl | BP | b) Imp C | b) 9- methyl- 1,2,3,9- tetrahydro- 4H-carba-zol- 4-one, |
| Ondansetron hcl | BP | c) Imp D | c) 9-methyl- 3-methylene- 1,2,3,9-tetrahy- dro-4H-carbazol- 4-one, |
| Ondansetron hcl | BP | d) Imp G | d) (3RS)- 3-[(1H- imidazol- 1-yl)methyl]- 9-methyl- 1,2,3,9- tetrahydro- 4H-carbazol- 4-one(C-dem- ethylond- ansetron), |
| Ondansetron hcl | BP | e) Imp H | e) (3RS)- 3-[(2-methyl- 1H-imidazol- 1-yl)methyl]- 1,2,3,9-tetrahy- dro-4H-carbazol- 4-one(N-deme- thylondansetron). |
| Ondansetron hcl | USP | Related comp- ound A | 3[(dimeth- ylamino) methyl]-1,2,3,9- tetrahydro- 9-methyl-4H- carbazol-4-one hydrochloride |
| Ondansetron hcl | USP | Related comp- ound D | 1,2,3,9- Tetrahydro- 9-methyl- s3-methylene- 4H-carbazol- 4-one |
| Ondansetron hcl | USP | Related Comp- ound C | 1,2,3,9- Tetrahydro- 9-methyl- 4H-carbazol- 4-one |
| Ornidazole | INH | | a) Ornid- azole epoxide |
| Ornidazole | INH | | b) Ornid- azolediol |
| Oxaliplatin | BP | impurity A | ethanedioic acid(oxalic acid) |
| Pantoprazole sodium | INH | Pharm- europa Imp A | Pantoprazole sulphone is 5(Difluoro methoxy)- 2-[[(3,4- dimethoxy- 2-pyridinyl) methyl] sulphonyl]- 1H-benzimi- dazole |
| Pantoprazole sodium | INH | Pantop- razole sulphide | 5-(Difluo- romethoxy)-} 2- [[3,4-dimethoxy- 2-pyridinyl] methyl] thio]-1H-benzimi- dazole |
| Pantoprazole sodium sesquihydrate | INH | Pantop- razole sulpho ne-N- oxide | 5-(Difluoro methoxy)- 2-[[3,4- dimethoxy- 2-pyridin -1-oxidenyl] methyl] sulphonyl]- 1H-benzimi- dazole |
| Paroxetine hydrochloride | INH | | a) PR-VI Compound |
| Paroxetine hydrochloride | INH | | b) PR-VII Compound |
| Potassium Clavulanate | BP | a) Imp A | a) 2,2�- (pyrazine- 2,5-diyl) diethanol |
| Potassium Clavulanate | BP | b) Imp B | b) 3-[3,6- bis(2-hyd- roxyethyl) pyrazine- 2-yl}-propanoic acid |
| Potassium Clavulanate | BP | c) Imp C | c) 2,2�-(3-Ethyl pyrazine-2,5- diyl Diethanol |
| Pramipexole | INH | | a) Pramipexole impurity 'E' |
| Pramipexole | INH | | b) PX-6 Compound |
| Pramipexole | INH | | c) Impurity 'D' of Pramipexole |
| Pramipexole | INH | | d) Impurity 'F' of Pramipexole |
| Pramipexole | INH | | e) Impurity 'A' of Pramipexole |
| Pramipexole | INH | | f) Pramipexole racemate compound |
| Quetiapine fumarate | INH | | a) QTPP--IMP A |
| Quetiapine fumarate | INH | | b) Qtp-04-imp B |
| Rabeprazole sodium | INH | | a) 2-[[[4-(3- Methoxypropoxy) -3-methyl-2- pyridinyl] methyl]thio]- 1H- benzimidazole |
| Rabeprazole sodium | INH | | b) 2-[[[4-(3- Methoxy propoxy)- 3-methyl- 2-pyridinyl] methyl] sulfonyl] -1H- benzimidazole |
| Rabeprazole sodium | INH | | c) 2-[[[4- (3-Methoxy)-3- methyl-2-pyrid- inyl]methyl] sulfonyl]-1H- benzimidazole |
| Raloxifene HCL | INH | | a) 6- Methyl sulfonyloxy-2- [(4-methyl sulfonyloxy) phenyl-3[4(2- (piperidinyl) ethoxy]-benzoyl] benzothiophene hydrochloride |
| Raloxifene HCL | INH | | b) 6- Hydroxy- 2[4-hydroxy- phenyl]- 3[4-hydroxy- benzoyl] benzothiophene |
| Ramipril | BP | a) Imp E | a) (2S,-3aS,6aS)- 1-[(S)-2-[[(S)-1- carboxy-3-phenyl- propyl]amino] propanoyl]octahy- drocyclo-penta[b] pyrrole-2- carboxylic acid(ramipril diacid), |
| Ranitidine | USP | a) Relat ed com- pound c | a) N-[2-[[[5- [(dimethylamino) methyl]-2-furanyl] methyl]sulphinyl] ethyl ]-N-methyl- 2-Nitro1-1 Ethene diamine |
| Ranitidine | USP | b) Relat ed com- pound A | b) [5-[[2-aminoe- thyl)thio] methyl]-N-N-dim- ethyl-2-furan methan-amine, hemif-umarate salt] |
| Ranitidine | BP | a) imp B | a) 2-[[[5- [(dimethylamino) methyl]furan- 2-yl]methyl] sulphanyl] ethanamine, |
| Ranitidine | BP | b) imp F | b) [5-[(dim- ethylamino) methyl]furan-2- yl]methanol, |
| Ranitidine | BP | c) imp G | c) 3-(methy- lamino)-5,6- dihydro-2H-1, 4-thiazin-2-one- oxime, |
| Rifampicin | INH | | a) 3-Formy- lrifamy-cin sv |
| Rifampicin | INH | | b) Isonicotinyl hydrazone of rifampicin and isonia-zide |
| Risperidone | INH | | a) 4-(2,4- Difluoro benzoyl hydroxylamino) piperidine |
| Risperidone | INH | | b) 6-Fluoro- 3-(4-piperidinyl) -1,2-benzi- soxazole monohydroch- loride |
| Risperidone | INH | | c) 3-(2- chloroethyl)-2 -methyl-4H- pyrido(1,2-a) pyrimidin-4- one |
| Risperidone | INH | | d) 6,7,8,9- tetrahydro-2 -methyl- 3-(2-chlo- roethyl) -4H-pyrido(1,2-a) pyrimidine -4-one hydro- chloride |
| Risperidone | BP | e) Imp C | e)3-(2-(-4- (6-fluoro-1,2- benzisoxazol- 3-yl)-1-piperid- inyl)ethyl)- 2-methyl-4H- pyrido(1,2-a) pyrimidin-4-one |
| Risperidone | INH | f) Rispe- ridone N-oxide | |
| Salbutamol sulfate | BP | a) Imp C | a) (1RS)-2- [(1,1-dimethy- lethyl)amino]- 1-(4-hyd- roxy-3-methyl- phenyl)ethanol, |
| Salbutamol sulfate | BP | b) Imp D | b) 5-[(1RS)-2- [(1,1-dimet- hylethyl)amino]- 1-hydroxyethyl]-2 -hydroxybenzald- ehyde, |
| Salbutamol sulfate | BP | c) Imp I | c) (1RS)-2-[(1,1- dimethylethyl) amino]-1-[3- (hydroxymethyl) -4-benzyloxyp- henyl]ethanol. |
| Salmeterol Xinofoate | BP | a) Imp G | a) 1-[4-hydroxy-3 -[[[2-hydroxy- 2- [4-hydroxy- 3-(hydroxymethyl) phenyl]ethyl] [6-(4-phenyl butoxy)hexyl] amino]methyl] phenyl]-2-[[6- (4-hen-ylbutoxy) hexyl]amino] ethanol. |
| Salmeterol Xinofoate | INH | | b) 1-hydroxy- 4[[2-hydroxy- 5-[1-hydroxy- 2-[[6-(-(4-Phenyl butoxy)hexyl] amino]ethyl] phenyl]methyl]- 2-naphth- alenecarbo- xylicacid |
| Salmeterol Xinofoate | BP | c) Imp E | c) 1-[4-hyd- roxy-3-(hydro- xymethyl)phenyl]- 2-[[6-(1-methyl- 3-phenylpropoxy) hexyl]amino] ethanol |
| Selegiline Hydrochloride | BP | Imp A | (2RS)-N-methyl- 1-pheny-lpropan -2-amine[(RS)- metamphetamine] |
| Sertraline hydrochloride | INH | | a) IST-01 Compound |
| Sertraline hydrochloride | INH | | b) 3,4deschloro Sertraline |
| Sertraline hydrochloride | INH | | c) Sertraline base |
| Sertraline hydrochloride | INH | | d) Cis(1R, 4R) Sertraline HCl |
| Sertraline hydrochloride | INH | | e) NS-II Compound |
| Sertraline hydrochloride | INH | | f) Trans isomer of NS-III Compound |
| Sertraline hydrochloride | INH | | g) NS-III Compound (Racemic- sertraline) |
| Sibutramine | INH | | a) SM-III fumarate salt |
| Sibutramine | INH | | b) SM amide impurity |
| Sibutramine | INH | | c) Des-chloro Sibutramine |
| Sildenafil | INH | | a) Des methyl impurity of Sildenafil[3-[2- (dimethylamino) ethyl]-1-(hydro- xymethyl)-1H indol-5-yl] N-methyl methanesulpho- namide |
| Stavudine | BP | a) Imp A | a)5-methylpy- rimidine-2,4 (1H,3H)-dione (thymine) |
| Stavudine | INH | | b) 2�,3�-dideh- ydro,5�-O- Benzoyl,5-methyl uridine |
| Sumatritan succinate | USP | Imp Related comp- ound 'C | ([3-[2- (dimethylamino) ethyl]-1-(hydro- xy-methyl- 1H-indol- 5-yl]-N-methyl metha-nesulfo- namide succinate salt) |
| Tamsulosin hydrochlo- ride | INH | | a) (R)-5-{2-N,N bis[[2-(2-ethoxy phenoxy) ethyl]-amino] propyl}-2- methoxy benzene sulphonamide |
| Tamsulosin hydrochlo- ride | INH | | b) 2-methoxy- 5-[2-(1,methyl benzyl-amino) propyl]benzene sulphonamide |
| Tamsulosin hydrochlo- ride | INH | | c) (S)-5-{2-[[2- (2-ethoxy- phenoxy) ethyl)amino] propyl}2-methoxy benzenesulphona- mide |
| Tamsulosin hydrochlo- ride | INH | | d) 2-bromoethyl- 2-ethoxyphenyl ether |
| Tegaserod Maleate | INH | | a) 5-Methoxy 1H� Indole 3-carbaldehyde |
| Tegaserod Maleate | INH | | b) N-aminon- pentyl Guanidine |
| Terbinafine hydrochlo- ride | INH | | a) Terbinafine-Z- isomer N-[(2E)- 6,6-dimethyl- 2-hepten-4ynyl] N-methyl-1- naphth- alene-metha- namine |
| Terbinafine hydrochlo- ride | INH | | b) Dimmer impurity of terbinafine |
| Tibolone | INH | | a) ?-Tibolone 7?-methyl-17 ?- ethynyl-17? hydroxy estr- 5(10)- en-3-one |
| Topiramate | INH | | a) 2,3:4,5-bis- O-(1-methyl- ethylidene)- beta D fructopyranose |
| Topiramate | INH | | b) 2,3:4,5-bis- O-(1-methylethyli- dene)-beta-D- fructopyranose sulphamoyl azide |
| Topotecan Hydrochloride | INH | | a) Campt- othecin |
| Topotecan Hydrochloride | INH | | b) 10-Hydroxy camptothecin |
| Torsemide | USP | Related comp- ound A | (4[(3-methyl phenyl)amino]- 3-pyridine sulpho- namide) |
| Trimetazi- dine dihydro- chloride | BP | a) Imp A | a) 1-(3,4,5- trimeth- oxybenzyl) piperazine, |
| Trimetazidine dihydrochlori- de | BP | b) Imp C | b) 2,3,4 trimethoxy benzaldehyde |
| Trimetazidine dihydrochlori- de | BP | c) Imp F | c) 2,4,6 trimethoxy TMZ impurity |
| Trimetazidine dihydrochlori- de | BP | d) Imp D | d) 2,3,4trimet- hoxyphenyl methanol |
| Trimetazidine dihydrochlori- de | BP | e) Imp B | e) 1,4-bis(2,3,4- trimethoxybe- nzyl)pipera- zine, |
| Trimetazidine dihydrochlori- de | BP | f) Imp E | f) 1-(2,4,5- trimeth- oxybenzyl) piperazine, |
| Venlafaxine hydrochloride | BP | a) Imp G | a) (2RS)-2- cyclohexyl- 2-(4-methoxy- phenyl)-N,N- dimethyeth- anamine. |
| Venlafaxine hydrochloride | BP | b) Imp D | b) 1-[(1RS)-1-(4- methoxyphenyl)- 2-(methylamino) ethyl]cyclohe- xanol, |
| Vincristine sulphate | INH | Desfo- rmyl vincr- istine | |
| Zidovudine | BP | Imp D | Triphenyl methanol |
| Zidovudine | BP | Imp C | 5-methyl pyrimidine- 2,4(1H,3H)-dione (thymine) |