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Impurities

Impurities

Sr No. Name of Impurity/Ref Standards Structure CAS No. Enquiry
A) Apixaban
1 Apixaban Reference Standard 503612-47-3
2 1-(4-iodophenyl)-3-morpholino-5,6-dihydropyridin-2(1H)-one 473927-69-4
3 Ethyl chloro[(4-methoxyphenyl)hydrazono]acetate 27143-07-3
4 Morpholine 110-91-8
5 Valerolactum 675-20-7
6 Ethyl 1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylate 503614-91-3
7 1-(4-Methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid 503614-91-3
B) Anagliptin hydrochloride
1 2-methylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid 739364-95-5
2 2-(Boc-oxyimino)-2-phenylacetonitrile 58632-95-4
3 (2S)-1-(Chloroacetyl)-2-pyrrolidinecarbonitrile 207557-35-5
4 2-Amino-2-methylpropanenitrile 19355-69-2
C) Azilsartan Kmedoxomil
1 Azilsartan medoxomil 863031-21-4
2 Methyl 1-((2'-cyano-[1,1'-biphenyl]-4-yl)methyl)-2-ethoxy-1Hbenzo[d]imidazole-7-carboxylate 139481-44-0
3 3-[(4-{2-[(Z)-N'-hydroxycarbamimidoyl]phenyl}phenyl)methyl]-2-oxo-2,3-dihydro-1H-1,3-benzodiazole-4-carboxylic acid 1821386-21-3
4 methyl 3-((2'-cyanobiphenyl-4-yl)methyl)-2-oxo-2,3-dihydro-1Hbenzo[d]imidazole-4-carboxylate(Impurity I) 139481-33-7
5 methyl 1-((2'-carbamoyl-[1,1'-biphenyl]-4-yl)methyl)-2-ethoxy-1H-benzo[d]imidazole-7-carboxylate(Impurity A) 147404-76-0
6 (Z)-2-ethoxy-1-((2'-(N'-hydroxycarbamimidoyl)-[1,1'-biphenyl]-4-yl)methyl)-1Hbenzo[d]imidazole-7-carboxylic acid(Impurity C) 1397836-49-5
7 methyl 2-ethoxy-1-((2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-[1,1'-biphenyl]-4-yl)methyl)-1Hbenzo[d]imidazole-7-carboxylate(Azilsartan methyl ester) 147403-52-9
8 2-oxo-3-((2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-[1,1'-biphenyl]-4-yl)methyl)-2,3-dihydro-1H-benzo[d]imidazole-4-carboxylicacid(Impurity K) 1442400-68-1
9 methyl (Z)-2-ethoxy-1-((2'-(N'-hydroxycarbamimidoyl)-[1,1'-biphenyl]-4-yl)methyl)-1Hbenzo[d]imidazole-7-carboxylate(Impurity 2) 147403-65-4
10 2-Ethoxy-1-[[2’-(4,5-dihydro-5-oxo-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl]benzimidazole-7-carboxylic Acid(Azilsartan Acid) 147403-03-0
11 methyl 1-((2'-carbamoyl-[1,1'-biphenyl]-4-yl)methyl)-2-ethoxy-1H-benzo[d]imidazole-7-carboxylate(Impurity A) 1474404-76-0
12 1-((2'-cyano-[1,1'-biphenyl]-4-yl)methyl)-2-ethoxy-1Hbenzo[d]imidazole-7-carboxylic acid(Impurity M) 632322-61-3
13 (Z)-2-ethoxy-1-((2'-(N'-hydroxycarbamimidoyl)-[1,1'-biphenyl]-4-yl)methyl)-1Hbenzo[d]imidazole-7-carboxylic acid(Impurity C) 1397836-49-5
14 methyl (Z)-3-((2'-(N'-hydroxycarbamimidoyl)-[1,1'-biphenyl]-4-yl)methyl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-4-carboxylate(Impurity H) 1499167-72-4
15 methyl 2-oxo-3-((2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-[1,1'-biphenyl]-4-yl)methyl)-2,3-dihydro-1H-benzo[d]imidazole-4-carboxylate(Impurity J) 1403474-78-1
D) Abiraterone
1 3β-Hydroxy-5-androsten-17-one, 5-Androsten-3β-ol-17-one(Impurity A) 53-43-0
2 3-β-Acetoxy-5-androsten-17-one(Impurity B) 853-23-6
3 17-Iodoandrosta-5,16-dien-3β-ol(Impurity C) 32138-69-5
4 Abiraterone Pregnenolone-16-ene Acetate(Impurity D) 979-02-2
E) Bupropion
1 2-bromo-3’-chloropropiophenone 34911-51-8
2 2-amino-1-(3-chlorophenyl)propan-1-one 119802-69-6
3 3-chloropropiophenone 34841-35-5
4 1-(3-chlorophenyl)-1,2-propanedione 10557-17-2
F) Bupivacaine
1 2,6-Dimethylaniline hydrochloride(Impurity F) 21436-98-6
2 N-(2,6-Dimethylphenyl)-2-Picolinamide (Impurity A) 39627-98-0
3 (+)-Bupicaine HCl Reference Standard 27262-46-0
G) Ciprofloxacin
1 7-Chloro-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic Acid 86393-33-1
2 Ciprofloxacin N-Formyl Impurity 93594-39-9
H) Cilastatin Sodium
1 L-cysteine hydrochloride monohydrate 7048-04-6
2 (S)-(+)-2,2-dimethylcyclopropane carbamide 75885-58-4
3 7-Chloro-2-[[[(1S)-2,2-dimethylcyclopropyl]carbonyl]amin o]-2-heptenoic acid 877674-77-6
4 Cilastatin Sodium Reference Standard 81129-83-1
I) Cinacalcet
1 (S)-Cinacalcet Reference Standard 694495-47-1
2 Cinacalcet N-Oxide 473927-69-4
J) Diphenhydramine HCL
1 2-Diphenylmethoxy-N,Ndimethylethylamine Hydrochloride RS 147-24-0
2 N-DesMethyl Diphenhydramine Hydrochloride(Impurity A) 53499-40-4
3 4-Methyl diphenhydramine(Toladryl,) 19804-27-4
4 4-Methyl diphenhydramine HCl 4024-34-4
5 4-bromo diphenhydramine hydrochloride 1808-12-4
6 Diphenhydramine N-Oxide Impurity 3922-74-5
7 Diphenyl Chloromethane 90-99-3
8 Diphenyl methanol 91-01-0
9 Benzophenone DPH Impurity 119-61-9
10 N,N-Dimethylethanolamine 108-01-0
K) Diclofenac Sodium
1 Diclofenac Ethyl Ester 15307-77-4
2 1-(2,6-Dichlorophenyl)-2-oxoindoline (Impurity A) 15362-40-0
3 2-(2,6-Dichloroanilino)benzaldehyde(Impurity B) 22121-58-0
4 o-(2,6-dichloroanilino)benzyl Alcohol (Impurity C) 27204-57-5
5 2-Indolinone (Impurity E) 59-48-3
6 2,6-Dichloro-N-(4-chlorophenyl)-benzeneacetamide (Impurity F) 560075-65-2
7 Diclofenac Isopropyl Ester 66370-79-4
L) Dacalatasvir hydrochloride
1 4,4'-Diacetylbiphenyl 787-69-9
2 4,4'-Bis(bromoacetyl)biphenyl 4072-67-7
3 4,4'-Bis(2-((S)-pyrrolidin-2-yl)-1H-imidazol-5-yl)-1,1'-biphenyl tetrahydrochloride 1009119-83-8
4 Daclatasvir dihydrochloride Reference Standard 1009119-65-6
5 (2S,2'S)-Di-tert-butyl 2,2'-(5,5'-([1,1'-biphenyl]-4,4'-diyl)bis(1Himidazole-5,2-diyl))bis(pyrrolidine-1-carboxylate) 1007882-23-6
6 1,2-Pyrrolidinedicarboxylic acid,2,2'-[[1,1'-biphenyl]-4,4'-diylbis(2-oxo-2,1-ethanediyl)]bis[1-(1,1-dimethylethyl)] ester,(2S)- 1009119-82-7
M) Gabapentin
1 4,4-pentamethylene-2-pyrrolidone (Impurity A) 64744-50-9
2 1-[(3-Oxo-2-azaspiro[4.5]dec-2-yl)methyl]cyclohexaneacetic acid (Impurity D) 1076198-17-8
3 Gabapentin Reference Standard 60142-96-3
4 (1-Cyanocyclohexyl) acetic acid,1-Cyanocyclohexaneacetic acid Gabapentin Impurity B 133481-09-1
5 1-Carboxycyclohexaneacetic Acid (Impurity E) 667465-00-1
N) Glimepiride
1 Glimepiride Reference Standard 93479-97-1
2 [4-[2-(3-Ethyl-4-methyl-2-oxo-3-pyrroline-1-carboxamido) ethyl] phenyl] sulfonamide 119018-29-0
3 3-ethyl-4-methyl-2-oxo-Nphenethyl-2,5-dihydro-1H-pyrrole-1-carboxamide ; 4-[2-[(3-Ethyl-4-methyl-2-oxo-3-pyrrolin-1-yl)carboxamido]ethyl]benzene 247098-18-6
O) Febuxastat
1 4-hydroxybenzoic acid (impurity-1) 99-96-7
2 4-hydroxybenzonitrile (Impurity-2) 767-00-0
3 Ethyl-2-chloro acetoacetate (RMImpurity) 609-15-4
4 4-hydroxybenzenecarbothioamide 25984-63-8
5 Ethyl-2-(4-hydrxyphenyl)-4-methyl-1,3-thiazole-5-carboxylate 161797-99-5
6 Ethyl-2-(3-formyl-4-hydroxyphenyl)-4-methyl-1,3-thiazole-5-carboxylate 161798-01-2
7 Ethyl 2-[3-formyl-4-(2-methyl propoxy) phenyl]-4-methyl -1,3-thiazole-5-carboxylate (Impurity G) 161798-03-4
8 Ethyl 2-[3-cyano-4-(2-methyl propoxy) phenyl]-4-methyl- 1,3-thiazole-5-carboxylate (Impurity 3) 160844-75-7
9 2-[3-carbamoyl-4-(2-methylpropoxy)phenyl]-4-methyl-1,3-thiazole-5-carboxylic acid (Impurity D) 1239233-86-3
10 ethyl 2-(3-cyano-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate 144060-97-9
11 2-(4-Isobutoxyphenyl)-4-methylthiazole-5-carboxylic acid (Descyano Impurity) 1206550-99-3
12 Ethyl 2-[3-cyano-4-hydroxy phenyl]-4-methyl-1,3-thiazole-5-carboxylate (Impurity 5) 161798-02-3
13 Febuxastat Reference Standard 144060-53-7
14 Febuxostat diacid impurity 1239233-87-4
15 Febuxastat diethyl ester (DEE)Impurity 1643131-93-4
16 Febuxastat Acid ester Impurity 2095166-41-7
P) Hydralazine HCl
1 Phthalazine (Impurity A) 253-52-1
2 2-Formyl benzoic acid (Impurity B) 119-67-5
3 1-(2H) Phthalazinone (Impurity C) 119-39-1
4 1-Chloro Phthalazine (Impurity 2) 5784-45-2
5 2,3-dihydro-1,4-phthalazinedione 1445-69-8
6 1,2-diphthalazin-1-ylhydrazine (Impurity F, Dimer Impurity) 24030-07-7
7 Hydralazine hydrochloride Reference Standard 304-20-1
8 3-bromo-3H-2-benzofuran-1-one 6940-49-4
9 1-Isobenzofuranone 87-41-2
10 Hydralazine Free base Reference Standard 86-54-4
Q) Ibuprofen
1 2-(4-butylphenyl) propanoic acid (Impurity B) 3585-49-7
2 2-(4-Methylphenyl) Propanoic acid (Impurity D) 938-94-3
3 1-[4-(2-methylpropyl) phenyl]ethanone (Impurity E) 586-89-0
4 Ibuprofen Propyl Analogue 3585-47-5
R) Linagliptin
1 8-bromo-3-methyl-3,7-dihydro-1Hpurine-2,6-dione 93703-24-3
2 3-Methyl-3,7-Dihydro-1H-Purine-2,6-Dion 1076-22-8
3 1-bromobut-2-yne 3355-28-0
4 8-bromo-7-(but-2-yn-1-yl)-3-methyl-3,7-dihydro-1H-purine-2,6-dione (Intermediate Reference Standard) 666819-98-4
5 2-(Chloromethyl)-4-methylquinazoline (Intermediate Reference Standard) 109113-72-6
6 8-Bromo-7-but-2-ynyl-3-methyl-1-(4-methyl-quinazolin-2-ylmethyl)-3,7-dihydro-purine-2,6-dione(Intermediate F Reference Standard) 853029-57-9
7 Tert-butyl (3R)-piperidin-3-ylcarbamate 309956-78-3
8 Chloro cyano methane 107-14-3
9 Tert-butyl (3S)-piperidin-3-ylcarbamate 216854-23-8
S) Lercanidipine hydrochloride
1 Lercanidipine hydrochloride RS 132866-11-6
2 Dehydro Lercanidipine HCl 887769-34-8
3 1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic Acid 3,5-Dimethyl Ester 21881-77-6
4 2-hydroxy-N-(3,3-diphenylpropyl)-N,2-dimethylpropan-1-amine 100442-33-9
5 2-chloro-N-(3,3-diphenylpropyl)-N,2-dimethylpropan-1-amine 936491-32-6
T) Metoprolol
1 Benzaldehyde,4-(2-oxiranylmethoxy) 14697-49-5
2 Glycidyl phenyl ether 122-60-1
3 4-(3-chloro-2-hydroxypropoxy)Benzaldehyde 62911-12-0
4 Metoprolol Impurity M (FB) 343785-33-1
5 Metoprolol EP Impurity M (HCl) 73313-36-7
6 Metoprolol EP Impurity F 7695-63-8
7 P-(2-Methoxyethyl)anisole 80314-58-5
8 1-(2-Methoxyethyl)-4-nitrobenzene 69628-98-4
9 4-(2-Methoxyethyl)benzenamine 84803-56-5
10 Metoprolol Epoxide 56718-70-8
11 Metoprolol Related Compound B 56718-76-4
U) Macitentan
1 Macitentan Dimer Impurity 2089065-77-8
2 Macitentan Reference Standard 441798-33-0
3 N-[5-(4-Bromophenyl)-6-[2-[(5-bromo-2-pyrimidinyl)-oxy]-ethoxy]-4-pyrimidinyl]-sulfamide. 1103522-45-7
4 (4-Bromo-phenyl)-6-[2-(5-bromopyrimidin-2-yloxy)-ethoxy]-pyrimidin-4-ylamine 1433875-21-8
V) Metformin Hydrochloride
1 Dicyandiamide(Impurity A) 461-58-5
2 (4,6-diamino-1,3,5-triazine-2-yl)guanidine (Impurity B) 4405-08-7
3 (4,6-diamino-1,3,5-triazine-2-yl)guanidine hydrochloride 2959-04-8
4 2,4,6-triamino-1,3,5-triazine(Melamine) 108-78-1
5 Dimethyl amine hydrochloride(Impurity F) 506-59-2
W) Nepafenac
1 O-AMINOBENZOPHENONE 2835-77-0
2 2-(methylsulfanyl)acetamide 22551-24-2
3 2-(2-amino-3-benzoylphenyl)-2-(methylsulfanyl)acetamide 78281-61-5
4 2-(2-amino-3-benzoyl-5-chlorophenyl) acetamide(Nepafenac Impurity C) 78281-71-7
5 2-Amino-3-benzoyl-5-chloro-α-(methylthio)-phenylacetamide(Nepafenac Impurity D) 78281-60-4
6 2-{[4-methylphenyl)sulfonyl]aminobenzoic acid 6311-23-5
7 2-Amino-5-Chloro Benzophenone 719-59-5
8 2-Amino-3-benzoylbenzeneacetamide 78281-72-8
9 2-(2-amino-3-(hydroxyl(phenyl)methyl)phenylacetamide(Nepafenac Impurity E) 1246956-18-2
10 7-Benzoyl-2-oxindole 51135-38-7
X) Other
1 Hydroxydichlorodiphenyl ether 3380-30-1
2 1-(3-Aminopropyl)azepan-2-one) 24566-95-8
Y) Pregabalin
1 IBGA; Impurity B 75143-89-4
2 Lactum Impurity; Impurity 4 61312-87-6
3 S-Lactum Impurity 181289-23-6
4 RS-CMH Acid 181289-15-6
5 Impurity A 148553-51-9
6 S-CMH Acid 181289-34-9
7 Anhydride Impurity 185815-59-2
8 Diamide Impurity 916982-10-0
9 S - Pregabalin Reference Standard 148553-50-8
10 R-CMH Acid 181289-33-8
11 (S)-Mandelic acid 17199-29-0
12 ETHYL CYANOACETATE 105-56-6
13 (R)-Mandelic acid 611-71-2
14 Methyl Ester Impurity 181289-25-8
15 Racemic Methyl Ester Impurity - -
16 R-Phenyl ethyl amine 3886-69-9
17 Rac-Pregabalin 128013-69-4
18 R-Salt - -
19 S-Salt - -
Z) Quetiapine
1 Impurity A 844639-07-2
2 Impurity B 111974-74-4
3 Impurity D 945668-94-0
4 Impurity H 1076199-40-0
5 Impurity I 329216-67-3
6 Impurity G 3159-07-7
7 2-Nitrodiphenyl sulfide 4171-83-9
AA) Rivaroxaban
1 Impurity A 438056-69-0
2 Impurity B 161596-47-0
3 Impurity C 24065-33-6
4 Impurity D 446292-07-5
5 Impurity E  
6 Impurity F  
7 N-({(5S)-2-oxo-3-[4-(3-oxomorpholin-4-yl) phenyl]-1,3-oxazolidin-5-yl}methyl)forma mide 1616563-62-2
8 Impurity H 366789-02-8
9 (R)-Rivaroxaban 865479-71-6
10 5-chloro-N-formyl-N-({(5R)-2-oxo-3-[4-(3oxomorpholin-4-yl)phenyl]-1,3-oxazolidin5-yl}methyl)thiophene-2-carboxamide - Not Available
11 ((2S)-2-(chloromethyl)oxirane 67843-74-7
12 PHTHALIMIDE  
13 2-[(2R)-oxiran-2-ylmethyl]-1Hisoindole-1, 3(2H)-dione 181140-34-1
14 4-(4-nitrophenyl)morpholin-3-one(NPM) 446292-04-2
15 2-chlorothiophene 96-43-5
16 N,N'-dimethylbenzene-1,2-dicarboxamide  
17 2-methyl-1H-isoindole-1,3(2H)-dione 550-44-7
BB) Sildenafil Citrate
1 Imidazole 5587-42-8
CC) Trelagliptin
1 Impurity A  
2 2-(bromomethyl)-4-fluorobenzonitrile 421552-12-7
3 Impurity D 334618-07-4
4 Impurity B 334618-23-4
5 Impurity C 309956-78-3
6 4-fluoro-2-methylbenzonitrile 147754-12-9
7 Impurity G - -
8 Impurity E 865759-24-6
9 Impurity F 1029877-94-8
10 Impurity H 865759-25-7
DD) Valacyclovir
1 Valacyclovir N-formyl Impurity 847670-62-6
EE) Metformin Hydrochloride
1 Metformin(Impurity A) 461-58-5
2 2-(4,6-diamino-1,3,5-triazin-2-yl)guanidine(Impurity B) 4405-08-7
3 (4,6-Diamino-1,3,5-Triazine-2-Yl)Guanidine hydrochloride 2-(4,6-diamino-1,3,5-triazin-2-yl)guanidine Hydrochloride 2959-04-8
4 Melamine 108-78-1
5 Methanamine 506-59-2
6 N,N-Dimethyl-1,3,5-triazine-2,4,6-triamine(Impurity C) 1985-46-2
FF) Methoxsalen
1 Pyrogallol 87-66-1
2 2,3,4-Trihydroxyphenacyl chloride 17345-68-5
3 3-bromo-3H-2-benzofuran-1-one 6940-49-4
4 Phthalide 87-41-2
5 6,7-dihydroxy-1-benzofuran-3(2H)-one 6272-27-1
6 2,3-dihydro-1-benzofuran-6,7 -diol 42484-95-7
7 2,3-dihydroxanthotoxol 68123-30-8
8 2,3-dihydroxanthotoxin 3779-03-1
9 Methoxsalen(Reference Standards) 298-81-7
GG) Methylparaben
1 Methylparaben (Reference Standard) 99-76-3
2 4-Hydroxybenzoic Acid (Impurity A) 99-96-7
HH) Mirabegron
1 (2R)-2-Hydroxy-N-[2-(4-nitrophenyl)ethyl]-2-phenylacetamide 521284-19-5
2 2-Formamidothiazol-4-acetic acid 75890-68-5
3 (2R)-N-[2-(4-aminophenyl)ethyl]-2- hydroxy-2-phenylethanamide 521284-19-5
4 2-(2-amino-1,3-thiazol-4-yl)acetic acid(Impurity 7) 29676-71-9
5 Ethyl 2-amino-4-thiazoleacetate 53266-94-7
6 D-(-)-Mandelic acid (Impurity A) 611-71-2
7 (S)-mandelate(Impurity E) 17199-29-0
8 2-(4-nitrophenyl) ethanamine hydrochloride 29968-78-3
9 2-Phenylethylamine 64-04-0
10 (1R)-1-phenyl-2-[(2-phenylethyl) amino]ethane hydrochloride 4164-20-9
11 1-(R)-2,4-nitrophenylethylamino-1-phenylethanol 223673-34-5
12 Mirabegron(Reference Standard ) 223673-61-8
II) Mefenamic Acid
1 2,3-Dimethylaniline(Impurity A) 87-59-2
2 N-(2,3-Dimethyl-phenyl)-2-(2,3-dimethylanilino)benzamide(Impurity B) 21122-68-9
3 2-Chlorobenzoic Acid(Impurity C) 118-91-2
4 Benzoic Acid(Impurity D) 65-85-0
5 (2,3-dimethyl-phenyl)-phenyl-amine(Impurity F) 4869-11-8
JJ) Mesalazine
1 4-Aminophenol(Impurity A) 123-30-8
2 3-Aminophenol(Impurity B) 591-27-5
3 2-Aminophenol(Impurity C) 95-55-6
4 3-Aminobenzoic Acid (Impurity D) 99-05-8
5 3-Aminosalicylic Acid (Impurity F) 570-23-0
6 2,5-dihydroxybenzoic acid(Impurity G) 490-79-9
7 Salicylic Acid(Impurity H) 69-72-7
8 3,5-Diamino-2-hydroxybenzoic acid(Impurity J) 112725-89-0
9 Aniline(Impurity K) 62-53-3
10 2-Chlorobenzoic Acid(Impurity L) 118-91-2
11 2-Chloro-5-nitrobenzoic acid(Impurity M) 2516-96-3
12 5-Nitrosalicylic Acid(Impurity N) 96-97-9
13 4-Aminobenzenesulfonic acid (Impurity O) 121-57-3
14 2-Chloro-3-nitrobenzoic acid(Impurity Q) 3970-35-2
15 3-Nitrosalicylic Acid(Impurity R) 85-38-1
KK) Nepafenac
1 2-Amino-3-benzoyl-5-chloro-α-(methylthio)-phenylacetamide(Impurity D) 78281-60-4
2 Ethyl-2-(methylthio)acetate 4455-13-4
3 2-[(4-methylphenyl)sulfonylamino] benzoic acid 6311-23-5
4 2-Amino-5-Chloro Benzophenone 719-59-5
5 2-Amino-3-benzoylbenzeneacetamide 78281-72-8
6 2-{2-amino-3-[hydroxyl(phenyl)methyl]phenyl} Acetamide(Impurity E) 1246956-18-2
7 7-benzoyl-1,3-dihydro-indol-2-one; 51135-38-7
LL) Nimesulide
1 4-Aminosalicylic Acid 65-49-6
2 N-(2,4-dinitro-6-phenoxyphenyl)methanesulfonamide (Impurity A) 51765-56-1
3 2-((Phenoxymethyl)sulfonyl)aniline (Impurity B) 51765-51-6
4 2-Phenoxyaniline 2688-84-8
5 4-Nirro-2-Phenoxyaniline 5422-92-4
6 N-(Methylsulfonyl)-N-(2-phenoxyphenyl)methanesulfonamide (impurity E) 905858-63-1
7 N-Methylsulfonyl Nimesulide(impurity F) 51765-72-1
8 5-Nitro-2-hydroxy-diphenylaether(impurity G) 70995-08-3
MM) Pregabalin
1 3-Isobutylglutaric Acid (Impurity B) 75143-89-4
2 (2-Methylpropyl)purrolidin-2-one (Lactum Inpurity , Impurity 4) 61312-87-6
3 (4S)-(+)-isobutylpyrrolidin-2-one (S-Lactum Impurity) 181289-23-6
4 3-carbamoylmethyl-5-methyl-hexanoic acid 181289-15-6
5 (3R)-3-(aminomethyl)-5-methylhexanoic acid(Impurity A) 148553-51-9
6 (3S)-3-(carbamoylmethyl)-5-methylhexanoic acid 181289-34-9
7 IBG-Anhydride Impurity 185815-59-2
8 3-(2-methylpropyl)piperidine-2,6-dione 916982-10-0
9 S - Pregabalin Reference Standard 148553-50-8
10 3-CarbaMoyl Mehyl-5-Methyl Hexanoic Acid; 181289-33-8
11 (S)-Mandelic acid 17199-29-0
12 Ethyl Cyanoacetate 105-56-6
13 (R)-Mandelic acid 611-71-2
14 (S)-3-isobutylglutaric acid methyl ester 181289-25-8
15 (R)-(+)-1-Phenylethylamine 3886-69-9
16 (+/-)-Pregabalin 128013-69-4
NN) Propyl Paraben
1 4-hydroxybenzoic acid propyl ester 94-13-3
2 4-Hydroxy benzoic acid(Impurity A) 99-96-7
3 Methylparaben(Impurity B) 99-76-3
4 Ethylparaben(Impurity C) 120-47-8
OO) Propofol
1 2-Isopropenyl-6-isopropylphenol(Impurity B) 74926-89-9
PP) Promethazine Hydrochloride
1 10H-Phenothiazine-10-ethanamine 58-33-3
QQ) Quetiapine Fumarate
1 2-(2-(4-(Dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)ethoxy)ethyl Acetate(Impurity A) 844639-07-2
2 11-(1-Piperazinyl)-dibenzo[b,f][1,4]thiazepine dihydrochloride(Impurity B) 111974-74-4
3 6-(4-benzo[b][1,4]benzothiazepin-6-ylpiperazin-1-yl)benzo[b][1,4]benzothiazepine (Quetiapine Dimer Impurity, Impurity D) 945668-94-0
4 2-[2-(4-benzo[b][1,4]benzothiazepin-6-yl-1-oxidopiperazin-1-ium-1-yl)ethoxy]ethanol (Quetiapine N-Oxide, Impurity H) 1076199-40-0
5 2-(4-benzo[b][1,4]benzothiazepin-6-ylpiperazin-1-yl)ethanol (Quetiapine Hydroxy Inpurity, Impurity I) 329216-67-3
6 Dihydro-11-oxodibenzo[b,f][1,4]thiazepine(Impurity G) 3159-07-7
7 2-Nitrodiphenyl sulfide 4171-83-9
RR) Rivaroxaban
1 4-(4-Aminophenyl)Morpholin-3-One(Impurity A) 438056-69-0
2 (S)-(+)-Glycidyl Phthalimide (Impurity B) 161596-47-0
3 5-Chloro-2-thiophenecarboxylic acid(Impurity C) 24065-33-6
4 4-[((2R)-Hydroxy-3-phthalimido)propylamine]phenyl-3-morpholinone (Impurity D) 446292-07-5
5 4-[4-[(5S)-5-Phthalimidomethyl-2-oxo-3-oxazolidinyl]phenyl]-3-morpholinone(Impurity E) 446292-08-6
6 4-[4-[(5S)-5-(aminomethyl)-2-oxo-1,3-oxazolidin-3-yl]phenyl]morpholin-3-one,hydrochloride; (Impurity F) 898543-06-1
7 N-({(5S)-2-oxo-3-[4-(3-oxomorpholin-4-yl)phenyl]-1,3-oxazolidin-5-yl}methyl)formamide 1616563-62-2
8 Rrivaroxaban Reference Standard , Impurity H 366789-02-8
9 (R)-Rivaroxaban 865479-71-6
10 ((2S)-2-(chloromethyl)oxirane 67843-74-7
11 Phthalimide 85-41-6
12 N-(R)-Glycidyl Phthalimide; 181140-34-1
13 4-(4-nitrophenyl)morpholin-3-one 446292-04-2
14 2-chlorothiophene 96-43-5
15 N,N'-dimethylbenzene-1,2-dicarboxamide 19532-98-0
16 1H-Isoindole-1,3(2H)-dione, 2-methyl-; 550-44-7
SS) Rilpivirine
1 (E)-3-4(-((2-((4-Cyanophenyl)amino)pyrimidin-4-yl)amino)-3,5-dimethylphenyl)acrylamide (Rilpivirine Amide 1) 500288-66-4
2 (E)-4-((4-((4-(2-cyanovinyl)-2,6-dimethylphenyl)amino)pyrimidin-2-yl)amino)benzamide Rilpivirine Amide 2 1446439-51-5
TT) Risperidone
1 Bicyclo Risperidone Impurity -
UU) Sildenafil Citrate
1 Sodium Imidazole 5587-42-8
VV) Sitagliptin
1 (3R)-3-amino-4-(2,4,5-trifluorophenyl)butanoic acid (Sitagliptin Acid Impurity) 936630-57-8
2 Boc-(R)-3-Amino-4-(2,4,5-Trifluoro-Phenyl)-Butyric Acid (Sitagliptin Boc Impurity) 486460-00-8
3 2-Buten-1-ol,4-[[(1,1-dimethylethyl)dimethylsilyl]oxy] (Sitagliptin Enamine Impurity) 767340-03-4
4 (R)-3-Amino-4-(2,4-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one-phosphate (Impurity C) 1345822-86-7
5 3-(Trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrazine (Sitagliptin Triazole Impurity) 486460-21-3
WW) Sumatriptan Succinate
1 3-[2-(Dimethylamino)ethyl]-1H-indol-5-yl-NmethylmethanesulfonamideSuccinate (USPGrade) 103628-48-4
XX) Sacubitril
1 (2R,4S)-5-biphenyl-4-yl-4-tertbutoxycarbonylamino-2-methyl-pentanoic acid 1012341-50-2
YY) Trelagliptin
1 6-chloro-3-methyuracil (Impurity A) 4318-56-3
2 2-(bromomethyl)-4-fluorobenzonitrile 421552-12-7
3 (S)-3-Aminopiperidine Dihydrochloride(Impurity D ) 334618-07-4
4 (R)-(-)-3-Piperidinamine dihydrochloride(Impurity B) 334618-23-4
5 (R)-3-amino-3-N-Boc-piperidine; (Impurity C) 309956-78-3
6 4-fluoro-2-methyl-benzonitrile 147754-12-9
7 2-((6-chloro-3-methyl-2,4-dioxo-3,4 -dihydropyrimidin-1(2H)-yl)methyl)-4-fluorobenzonitrile(Impurity E) 865759-24-6
8 2-[[6-[(3R)-3-aminopiperidin-1-yl]-3-methyl-2,4-dioxopyrimidin-1-yl]methyl]-4-fluorobenzonitrile,butanedioic acid;(Trelagliptin succinate , Impurity F) 1029877-94-8
9 (R)-2-((6-(3-aminopiperidin-1-yl)-3-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)-4-fluorobenzonitrile;(Impurity H) 865759-25-7
ZZ) Thiamazol
1 2-methylmercapto-3-methylimidazole 14486-52-3
AAA) Tramadol
1 O-Desmethyl Tramadol HCl 80456-81-1
BBB) Tenofovir
1 Tenofovir Monoester Impurity 211364-69-1
CCC) Teneligliptin
1 1-(3-methyl-1-phenyl-5-pyrazolyl)piperazine 401566-79-8
2 (S)-tert-Butyl 4-oxo-2-(thiazolidine-3-carbonyl)pyrrolidine-1-carboxylate 401564-36-1
3 Teneligliptin Impurity A NA
4 Teneligliptin Hydrobromide Hydrate - 906093-29-6
DDD) Trimethoprim
1 4-Amino-5-(3,4,5-trimethoxybenzyl)pyrimidin-2-ol 60729-91-1
2 (2,4-diaminopyrimidin-5-yl)-(3,4,5-trimethoxyphenyl)methanone 30806-86-1
EEE) Valacyclovir
1 Valacyclovir N-formyl Impurity 847670-62-6
FFF) Valsartan
1 N-Valeryl-N-[2'-(1H-tetrazol-5-yl)biphenyl-4-ylmethyl]-L-valine 137862-53-4
GGG) Other’s
1 Hydroxydichlorodiphenyl ether 3380-30-1
2 1-(3-Aminopropyl)azepan-2-one) 24566-95-8