API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Acesulfame

Acesulfame impurity A

Acetoacetamide
DEXMEDETOMIDINE

DEXMEDETOMIDINE OLEFINE IMPURITY

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

DEXMEDETOMIDINE(ET-DEX)

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

EPI LOVASTATIN

(2R)-2-Methylbutanoic Acid (1S,3R,7S,8S,8aR)-1,2,3,7,8,8a-Hexahydro-3,7- dimethyl-8-[2-[(2R,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethyl]-1-naphthalenyl Ester.
CEFDINIR

E-CEFDINIR

(6R,7R)-7-[[(2E)-(2-Amino-4-thiazolyl)(hydroxyimino)acetyl]amino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
CEFDINIR

CEFDINIR ISOXAZOLE ANALOG

(6R,7S)-7-(4-hydroxyisoxazole-3-carboxamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
CEFDINIR

CEFDINIR THIAZINE ANALOG

(R,Z)-2-((R)-((Z)-2-(2-aMinothiazol-4-yl)-2-(hydroxyiMino)acetaMido)(carboxy)Methyl)-5-ethylidene- 5,6-dihydro-2H-1,3-thiazine-4-carboxylic acid
CEFDINIR

CEFDINIR SULFOXIDE

(6R,7R)-7-((Z)-2-(2-aMinothiazol-4-yl)-2-(hydroxyiMino)acetaMido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 5-oxide
CEFDINIR

CEFDINIR RELATED COMPOUND-B

(6R,7R)-7-(2-(2-aminothiazol-4-yl)acetamido)-8-oxo-3-vinyl- 5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
CEFDINIR

CEFDINIR RELATED COMPOUND A

sodium (Z)-2-(2-(2-aminothiazol-4-yl)-2- (hydroxyimino)acetamido)-2-(5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl)acetate
CEFDINIR

7-AVNA(CEFDINIR)

(6R)-7-amino-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
CEFDINIR

CEFDINIR DECARBOXY OPEN RING LACTONE A&B

(Z)-2-(2-Aminothiazol-4-yl)-2-(hydroxyimino)-N-{[(2RS,5RS)- 5-methyl-7-oxo-2,4,5,7-tetrahydro-1H-furo[3,4-d][1,3]thiazin-2-yl]methyl}acetamide
CEFDINIR

3-METHYL CEFDINIR

(6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-hydroxyiminoacetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
CEFDINIR

CEFDINIR LACTONE

(Z)-2-(2-aminothiazol-4-yl)-2-(hydroxyimino)-N-((5aR,6R)-3-methyl-1,7-dioxo-1,4,5a,6-tetrahydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl)acetamide.
CEFDINIR

CEFDINIR GLYOXALIC ANALOG

(6R,7R)-7-(2-(2-aminothiazol-4-yl)-2-oxoacetamido)-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
CEFDINIR

3-METHYL CEFDINIR

(6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-hydroxyiminoacetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
NICOTINE

NICOTINE N-XOIDE

(1R,2S)-1-methyl-2-(pyridin-3-yl) pyrrolidine 1-oxide
LINEZOLID

LINEZOLID IMPURTIY-B

N-[[(5S)-3-[4-(4-Morpholinyl)phenyl]-2-oxo-5-oxazolidinyl] methyl] acetamide
FEXOFENADINE

FEXOFENADINE HYDROCHLORIDE IMPURITY-C

(1RS)-4-[4-(Hydroxydiphenylmethyl)piperidin-1-yl]-1-[4-(1-methylethyl)phenyl]butan-1-ol
FEXOFENADINE

FEXOFENADINE HYDROCHLORIDE IMPURITY-A

4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-oxobutyl]-α,α-dimethylphenylacetic acid
FAMOTIDINE

FAMOTIDINE IMPURITY G

N-Cyano-3-[[[2-[(diaminomethylene)amino]thiazol-4-yl]methyl]sulphanyl]propanimidamide
ESMOLOL

ESMOLOL DIMER

4-[2-hydroxy-3-[[3-[4-[2-hydroxy-3-[(1-methylethyl)amino]propoxy]phenyl]-1-oxopropyl](1-methylethyl)amino]propoxy]-benzenepropanoic Acid Methyl Ester
EMTRICITABINE

EMTRICITABINE ENANTIOMER

4-Amino-5-fluoro-1-[(2S,5R)-2- (hydroxymethyl)-1,3-oxathiolan-5-yl]-2-(1H)-pyrimidone
DULOXETINE

DULOXETINE IMPURITY  H

(S)-Duloxetine Succinamide ;(S)-4-(Methyl[3-(naphthalen-1-yloxy)-3-(thiophen-2-yl)propyl]amino)-4-oxobutanoic acid
DULOXETINE

DULOXETINE IMPURITY  F

(3S)-N-Methyl-3-(naphthalen-1-yloxy)-3-(thiophen-3-yl)propan-1-amine oxalate
COTININE

COTININE IMPURITY

(S)-1-Methyl-5-(3-pyridyl)-2-pyrrolidinone, S(−)-1-Methyl-5-(3-pyridyl)-2-pyrrolidone
Timolol

Timolol Impurity A

(2R)-1-[(1,1-Dimethylethyl)amino]-3-[[4-(morpholin-4-yl)-1,2,5-thiadiazol-3-yl]oxy]propan-2-ol fumarate
ESMOLOL

ESMOLOL ISOPROPYL AMIDE ANALOG

3-(4-(2-hydroxy-3-(isopropylamino)propoxy)phenyl)-N-isopropylpropanamide
ESMOLOL

ESMOLOL N-ETHYL

methyl 3-(4-(3-(ethylamino)-2-hydroxypropoxy)phenyl)propanoate
Allopurinol

Allopurinol Impurity A

5-Amino-1H-pyrazole-4-carboxamide hemisulfate
CEFDINIR

CEFDINIR 7-EPIMER

"(6R,7S)-7-{ (z}-2-(2aminothiazol-4-yl)-2- hydroxyiminoacetylamino]-8-oxy-3-vinyl -5-thia-1-azabicyclo{4.2.0}oct-2-ene2-carboxylic acid "
OXYTETRACYCLINE

Beta Apo Oxytetracycline

4-(1,3-Dihydro-4,5-dihydroxy-9-methyl-3-oxonaphtho[2,3-c]furan-1-yl)-3-(dimethylamino)-2,5-dihydroxy-6-oxo-1-cyclohexene-1-carboxamide b-Apoterramycin
OXYTETRACYCLINE

Alpha Apo Oxytetracycline

"4-(1,3-Dihydro-4,5-dihydroxy-9-methyl-3- oxonaphtho[2,3-c]furan-1-yl)-3-(dimethylamino) -2,5-dihydroxy-6-oxo-1-cyclohexene-1-carboxamide"
Allopurinol

Allopurinol Impurity E

ethyl 5-formamido-1H-pyrazole-4-carboxylate
Allopurinol

Allopurinol Impurity D

Ethyl 5-amino-1H-pyrazole-4-carboxylate
Allopurinol

Allopurinol Impurity C

5-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-4-carboxamide
Allopurinol

Allopurinol Impurity B

5-formamido-1H-pyrazole-4-carboxamide
OXYTETRACYCLINE

4-EPI OXYTETRACYCLINE

4-EPI OXYTETRACYCLINE
Prednisolone Sodium Phosphate Homo A Derivative

Prednisolone Sodium Phosphate Homo A Derivative

((1S,4bS,10aR,10bS,11S,12aS)-1,11-dihydroxy-10a,12a-dimethyl-2,8-dioxo-1,2,3,4,4a,4b,5,6,8,10a,10b,11,12,12a-tetradecahydrochrysen-1-yl)methyl dihydrogen phosphate, sodium.
Lamivudine enantiomer

Lamivudine enantiomer

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

Lamivudine Dimer

(S,R)-4,4′-(Methylenebis(azanediyl))bis(1-((2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl)pyrimidin-2(1H)-one)
lamivudine Diasteomer

lamivudine Diasteomer

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

Lamivudine Dimer

(S,R)-4,4′-(Methylenebis(azanediyl))bis(1-((2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl)pyrimidin-2(1H)-one)
Lactose

Lactose

β-D-galactopyranosyl-(1-4)-D-glucose
Ketorolac Impurity B

Ketorolac Impurity B

5-Benzoyl-2,3-dihydro-1H-pyrrolizine-1-one
Ketorolac impurity A

Ketorolac impurity A

(1RS)-5-Benzoyl-2,3-dihydro-1H-pyrrolizin-1-ol
Ketoprofen Impurity E ( Dimer)

Ketoprofen Impurity E ( Dimer)

2-(3-benzoylphenyl)propanamide
Ketoprofen Impurity B

Ketoprofen Impurity B

(3-Benzoylphenyl)acetic acid
Indomethacin Impurity J

Indomethacin Impurity J

"4-chloro-N'-(2-(1-(4-chlorobenzoyl)-5- methoxy-2-methyl-1H-indol-3-yl)acetyl)-N-(4- methoxyphenyl)benzohydrazide"
Hydroxy Dalfampridine

Hydroxy Dalfampridine

4-AMINO-3-HYDROXY PYRIDINE
Glycine

Glycine

Aminoethanoic acid
Fructose

Fructose

1,3,4,5,6-Pentahydroxy-2-hexanone
Lamivudine uracil

Lamivudine uracil

Lamivudine carboxylic acid
Lamotrigine Impurt A

Lamotrigine Impurt A

2-Cyano-2-(3,4-dichlorophenyl)hydrazono]acetamide
Memantine Lactose aduct

Memantine Lactose aduct

N-(3,5-Dimethyltricyclo[3.3.1.13,7]dec-1-yl)-4-O-D-galactopyranosyl- D-glucopyranosylamine
Omeprazole Related Compound-I

Omeprazole Related Compound-I

(4-Methoxy-2-[[(5-methoxy-1H-benzimidazol-2-yl)sulfonyl]methyl]-3,5-dimethylpyridine 1-oxide)
Ritonavir Impurity O

Ritonavir Impurity O

"(3S,4R,6S,9S)-4-Hydroxy-12-methyl-9-(1-methylethyl)-13-[2-(1-methylethyl)-4-thiazolyl]-8,11-dioxo-3,6- bis(phenylmethyl)-2,7,10,12-Tetraazatridecanoic acid 5-thiazolylmethyl Ester "
Vardenafil Sulfonic acid

Vardenafil Sulfonic acid

3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxybenzenesulfonic Acid
Terbinafine Hydrochloride Impurity -E

Terbinafine Hydrochloride Impurity -E

(2E,4E)-4-(4,4-Dimethyl-2-pentyn-1-ylidene)-N1,N5-dimethyl-N1,N5-bis(1-naphthalenylmethyl)-2-pentene-1,5-diamine Dihydrochloride Salt
Terbinafine Hydrochloride Impurity -B

Terbinafine Hydrochloride Impurity -B

(2Z)-N, 6, 6-Trimethyl-N-(naphthalen-1-ylmethyl)hept-2-en-4-yn-1-amine Hydrochloride (cis-Terbinafine Hydrochloride)
Valciclovir Impurity R

Valciclovir Impurity R

2-[(2-Amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy]ethyl D-valinate hydrochloride
Tamsulosin impurity B

Tamsulosin impurity B

5[(2R)2aminopropyl]2methoxybenzenesulfonamide
Tamsulosin impurity A

Tamsulosin impurity A

5[(2R)2[bis[2(2ethoxyphenoxy)ethyl]amino] propyl]-2-methoxybenzenesulfonamide
Tenofovir Impurity B

Tenofovir Impurity B

9-PROPENYLADENINE
CLOMIFENE CITRATE Z-ISOMER

CLOMIFENE CITRATE Z-ISOMER

(Z)-2-(4-(2-chloro-1,2-diphenylvinyl)phenoxy)-N,N-diethylethanamine citrate
Cetrizine S-isomer

Cetrizine S-isomer

(S)-2-(2-(4-((4-chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetic acid
Tenofovir Dimer (or) Disoproxil Dimer

Tenofovir Dimer (or) Disoproxil Dimer

Tenofovir Disoproxil Dimer
Tenofovir Mixed Dimer

Tenofovir Mixed Dimer

Tenofovir Mixed Dimer
TENOFOVIR DIOPROXIL (S) EANANTIOMER

TENOFOVIR DIOPROXIL (S) EANANTIOMER

5-[[(1S)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]-2,4,6,8-tetraoxa-5-phosphanonanedioic acid 1,9-bis(1-methylethyl) ester 5-oxide
MONO POC PMPA

MONO POC PMPA

R)-1-(6-aMino-9H-purin-9-yl)propan-2-yloxy)Methyl)(hydroxy)phosphoryloxy)Methyl isopropyl carbonate;(8R)-9-(6-Amino-9H-purin-9-yl)-5-hydroxy-8-methyl-2,4,7-trioxa-5-phosphanonanoic acid 1-methylethyl ester 5-oxide.
MOC-POC-PMPA IMP

MOC-POC-PMPA IMP

5-[[(1R)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]-2,4,6,8-tetraoxa-5-phosphanonanedioic Acid (1-Methylethyl,methyl) Ester 5-Oxide
IPR POC PMPA IMPURITY STANDARD

IPR POC PMPA IMPURITY STANDARD

Tenofovir Disoproxil Related CoMpound G;Mono-POC Isopropyl Tenofovir (Mixture of DiastereoMers);(8R)-9-(6-Amino-9H-purin-9-yl)-8-methyl-5-(1-methylethoxy)-2,4,7-trioxa-5-phosphanonanoic acid 1-methylethyl ester 5-oxide.
Vardenafil N-Oxide

Vardenafil N-Oxide

Vardenafil Dimer

Vardenafil Dimer

Vardenafil dimer impurity
Valciclovir EP Impurity R

Valciclovir EP Impurity R

2-[(2-Amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy]ethyl D-valinate hydrochloride
Vardenafil Desithyl

Vardenafil Desithyl

1-[[3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-piperazine
Sucrose

Sucrose

(2R,3R,4S,5S,6R)-2-[(2S,3S,4S,5R)-3,4-dihydroxy-2,5-bis(hydroxymethyl)oxolan-2-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
Glucose

Glucose

(2R,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanal
Tenofovir MoC POC PMPA

Tenofovir MoC POC PMPA

R)-1-(6-aMino-9H-purin-9-yl)propan-2-yloxy)Methyl)(hydroxy)phosphoryloxy)Methyl isopropyl carbonate;(8R)-9-(6-Amino-9H-purin-9-yl)-5-hydroxy-8-methyl-2,4,7-trioxa-5-phosphanonanoic acid 1-methylethyl ester 5-oxide
Lisinopril impurity E

Lisinopril impurity E

2S)-1-[(2S)-6-Amino-2-[[(1R)-1-carboxy-3-phenylpropyl]amino]hexanoyl] pyrrole-2-carboxylic acid,N2-[(1R)-1-Carboxy-3-phenylpropyl)-L-lysyl]-L-proline
T-BUTYL DERIVATIVE ABACAVIR(IMPURITY F)

T-BUTYL DERIVATIVE ABACAVIR(IMPURITY F)

6-(Cyclopropylamino)-9-[(1R,4S)-4-[[(1,1-dimethylethyl)oxy]methyl]cyclopent-2-enyl]-9H-purine-2-amine
SUNITINIB

SUNITINIB

N-[2-(Diethylamino)ethyl]-5-[(Z)-(5-fluoro-1,2-dihydro-2-oxo-3H-indol-3-ylidene)methyl]-2,4-dimethyl-1H-pyrrole-3-carboxamide M
sitagliptine S- Isomer

sitagliptine S- Isomer

SITAGLIPTIN S-ISOMER
Rosuvastatin Anti isomer

Rosuvastatin Anti isomer

(3S,5R,6E)-7-[4-(4-fluorophenyl)-6-(1-methylethyl)-2[methylmethylsulfonyl)amino]-5-pyrimidinyl]-3,5-dihydroxy-6-heptenoic acid Calcium salt
Ritonavir Impurty N

Ritonavir Impurty N

Thiazol-5-ylmethyl (2S ,4S ,5S )-4-hydroxy-5-[(S )-2-{3-[(2-isopropylthiazol-4-yl)methyl]-3-methylureido}-3-methylbutanamido]-1,6-diphenylhexan-2-ylcarbamate
Ketoconazole N-oxide

Ketoconazole N-oxide

1-(4-(((2R,4S)-2-((1H-imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-4-acetylpiperazine 1-oxide
Ketoconazole EP Impurity D

Ketoconazole EP Impurity D

1-(4-(((2R,4S)-2-((1H-imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazine
KETOCONAZOLE IMPURITY-3

KETOCONAZOLE IMPURITY-3

((2R,4S)-2-((1H-imidazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methanol
Di-Cefuroxime Ethyl ehter

Di-Cefuroxime Ethyl ehter

(6R,7R)-ethyl 3-(carbamoyloxymethyl)-7-((E)-2-(furan-2-yl)-2-(methoxyimino)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
Bromhexine impurity C

Bromhexine impurity C

N-(2-aminobenzyl)-N-methylcyclohexanamine
Benzoic acid

Benzoic acid

2-[3-(Aminosulfonyl)-4-chlorobenzoyl]-benzonic acid
AZITHROMYCIN IMPURITY N

AZITHROMYCIN IMPURITY N

3’-N,N-didesmethyl-3-oxo Azithromycine
AZITHROMYCIN IMPURITY M

AZITHROMYCIN IMPURITY M

3’-(N,N-didemethyl)-3’-N-formylazithromycin
AZITHROMYCIN IMPURITY L

AZITHROMYCIN IMPURITY L

Azithromycin N-Oxide
AZITHROMYCIN IMPURITY J

decladinosil azithromycin

decladinosil azithromycin
AZITHROMYCIN IMPURITY I

AZITHROMYCIN IMPURITY I

" 3'-N-demethylazithromycin"
AZITHROMYCIN IMPURITY H

AZITHROMYCIN IMPURITY H

3'-N-[[4-(acetylamino)phenyl]sulphonyl]-3'-N-demethylazithromycin
AZITHROMYCIN IMPURITY F

AZITHROMYCIN IMPURITY F

14-demethyl-14-(hydroxymethyl) Azithromycin
AZITHROMYCIN IMPURITY E

AZITHROMYCIN IMPURITY E

3-(N,N-didesmethyl) Azithromycin
AZITHROMYCIN IMPURITY D

AZITHROMYCIN IMPURITY D

14-demethyl-14-(hydroxymethyl)azithromycin