API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Dacarbazine

EP Impurity B

5-amino-1H-imidazole-4-carboxamide, DacarbazineEP Impurity B
Dacarbazine

Dacarbazine Related Compound A

5-aminoimidazole-4-carboxamide hydrochloride DacarbazineDantrolene Related Compound C
Dacarbazine

Dantrolene Related Compound C

5-(4-nitrophenyl)-2-furancarboxyaldehyde DacarbazineDantrolene Related Compound C
Darifenacin

Darifenacin Amide Impurity

(S)-alpha,alpha-Diphenyl-3-pyrrolidin acetamide tartarate DarifenacinDarifenacin Amide Impurity
Darifenacin

(R)-Darifenacin Hydrobromide

(3R)-1-[2-(2,3-Dihydro-5-benzofuranyl)ethyl)- alpha,alpha-diphenyl-3-pyrrolidin acetamide hydrobromide Darifenacin(R)-Darifenacin Hydrobromide
Darunavir

DARUNAVIR Impurity

4-Amino-N-(2R,3S)(3-amino-2-hydroxy-4-phenyl-butyl)-N-isobutyl-benzenesulfonamide DarunavirDARUNAVIR
Darunavir

DARUNAVIR Impurity

[(1S,2S)-3[[(4-Amino-phenyl)sulfonyl](2-methylpropyl)amino]-2-hydroxy-1- (phenylmethyl)propyl]carbamic acid(3R,3aS,6aR)-hexahydrofuro[2,3-b]-furan-3ylester DarunavirDARUNAVIRimpurities
Dequalinium Chloride

EP Impurity A

2-methylquinolin-4-amine Dequalinium ChlorideEP Impurity A
Desloratadine

Desloratadine Related Compound A

8-chloro-6,11-dihydro-11-(4-piperdinylidene)- 5H-benzo[5,6]cyclohepta[1,2-b]pyridine
Desloratadine

Desloratadine Related Compound B

8-Chloro-6,11-dihydro-11-(N-methyl-4-piperidinylidene)-5H-benzo[5,6]cyclohepta[1,2-b]pyridine DesloratadineDesloratadine Related Compound B
Desloratadine

N-hydroxy impurity

N-hydroxy impurity DesloratadineN-hydroxy impurity
Desloratadine

Deschloro desloratadine

Deschloro desloratadine DesloratadineDeschloro desloratadine
Desloratadine

N-oxide impurity

N-oxide impurity DesloratadineN-oxide impurity
Dexlansoprazole

(S) Lansoprazole

(S)-(+)2-([3-methyl-4-(2,2,2-trifluoroethoxy)-pyridin- 2-yl]methylsulfinyl)-1H-benzo[d]imidazole Dexlansoprazole(S) Lansoprazole
Dexlansoprazole

Dexlansoprazole Impurity

2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]sulfinyl-1H-benzimidazole1'-oxide( Dexlansoprazole N-Oxide) DexlansoprazoleDexlansoprazole Impurity
Dexlansoprazole

Dexlansoprazole Impurity

2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]thio]-1H-benzimidazole( Sulfide impurity) DexlansoprazoleDexlansoprazole Impurity
Dexlansoprazole

Dexlansoprazole Impurity

2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl]methyl]sulfonyl-1H-benzimidazole( Sulfone impurity) DexlansoprazoleDexlansoprazole Impurity
Dexpramipexole

Dexpramipexole Impurity A

(6R)-4,5,6,7-tertrahydro-1,3-benzothiazol-2,6-diamine DexpramipexoleDexpramipexole Impurity A
Dexpramipexole

Dexpramipexole Impurity B

N-[(6R)-2-Amino-4,5,6,7-terthydro-1,3-benxothiazol-6-yl]propanamide DexpramipexoleDexpramipexole Impurity B
Dexpramipexole

Dexpramipexole Impurity C

(S)-4,5,6,7-terahydro-N-6-propyl-2,6-benzothiazolediamine
Dexpramipexole

Dexpramipexole Impurity

(6R)-6-N-ethyl-4, 5, 6, 7-tetrahydro-1,3-benzothiazole-2,6-diamine( Ethyl Dexpramipexole) DexpramipexoleDexpramipexole Impurity
Dexpramipexole

Dexpramipexole Dexpramipexole Impurity

R)-4,5,6,7-tetrahydro-N2,N6-dipropylbenzo[d]thiazole-2,6-diamine DexpramipexoleDexpramipexole Impurity1
Dexpramipexole

Dextroamphetamine Related Compound A

1-Phenyl-2-propanol DextroamphetamineDextroamphetamine Related Compound A
Dextroamphetamine

Dextroamphetamine Related Compound B CII

Phenyl acetone DextroamphetamineDextroamphetamine Related Compound B CII
Diazepam

EP Impurity A

7-chloro-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-one (nordazepam), DiazepamEP Impurity A
Diazepam

EP Impurity D

[5-chloro-2-(methylamino)phenyl]phenylmethanone DiazepamEP Impurity D
Diclofenac

EP Impurity A

1-(2,6-dichlorophenyl)-1,3-dihydro-2H-indol-2-one DiclofenacEP Impurity A
Diclofenac

EP Impurity E

1,3-dihydro-2H-indol-2-one DiclofenacEP Impurity E
Diclofenac

EP Impurity C

[2-[(2,6-dichlorophenyl)amino]phenyl]methanol DiclofenacEP Impurity C
Diclofenac

EP Impurity B

2-[(2,6-dichlorophenyl)amino]benzaldehyde DiclofenacEP Impurity B
Dicloxacillin Sodium

EP Impurity C

6-aminopenicillanic acid DicloxacillinSodiumEP Impurity C
Didanosine

EP Impurity A

hypoxanthine DidanosineEP Impurity A
Didanosine

EP Impurity B

inosine DidanosineEP Impurity B
Duloxetine Hydrochloride

EP Impurity (R-ISOMER)

(R)-N-methyl-3-(1-naphthyloxy)-3-(2-thienyl)propanamine( R-ISOMER) Duloxetine Hydrochloride_EP Impurity(R-ISOMER)
Duloxetine Hydrochloride

EP Impurity

(R,S)-N-Methyl-3-(1-Naphthyloxy)-3-(3-thienyl)propanamine Duloxetine Hydrochloride_EP Impurity
Duloxetine Hydrochloride

EP Impurity A

(S)-N-Methyl-N-phenyloxy carbonyl-3-(1-naphthyloxy)-3-(2-thienyl)propylamine. Duloxetine Hydrochloride_EP Impurity A
Didanosine

EP Impurity C

2'-deoxyinosine DidanosineEP Impurity C
Doxylamine Succinate

EP Impurity A

N,N-dimethyl-2-[1(RS)-1-phenyl-1-(pyridin-4-yl)ethoxy]ethanamine Doxylamine Succinate_EP Impurity A
Doxylamine Succinate

EP Impurity B

(1RS)-1-phenyl-1-(pyridin-2-yl)ethanol Doxylamine Succinate_EP Impurity B
Doxylamine Succinate

EP Impurity D

phenyl(pyridin-2-yl)methanone (2-benzoylpyridine) Doxylamine Succinate_EP Impurity D
Doxepin Hydrochloride

EP Impurity A

dibenzo[b,e]oxepin-11(6H)-one (doxepinone) Doxepin Hydrochloride_EP Impurity A
Didanosine

EP Impurity F

9-(2,3-dideoxy-b-D-glycero-pent-2-enofuranosyl)-1,9-dihydro-6H-purin-6-one (2¢,3¢-dideoxy-2¢,3¢-didehydroinosine DidanosineEP Impurity F
Doxazosin Mesilate

EP Impurity A

(2RS)-2,3-dihydro-1,4-benzodioxine-2-carboxylic acid Doxazosin Mesilate_EP Impurity A
Doxazosin Mesilate

EP Impurity D

6,7-dimethoxyquinazoline-2,4(1H,3H)-dione Doxazosin Mesilate_EP Impurity D
Didanosine

Didanosine Impurity

5'-O-Acetyl-2',3'-dideoxy inosine DidanosineDidanosine Impurity
Didanosine

Didanosine Related Compound A

Hypoxanthine DidanosineEP Impurity A
Doxazosin Mesilate

EP Impurity E

2,4-dichloro-6,7-dimethoxyquinazoline Doxazosin Mesilate_EP Impurity E
Doxazosin Mesylate

Doxazosin Related Compound B

6,7-dimethoxyquinazoline-2,4-dione Doxazosin Mesylate_Doxazosin Related Compound B
Didanosine

Didanosine Related Compound B

2',3'-dideoxyadenosine DidanosineDidanosine Related Compound B
Doxazosin Mesylate

Doxazosin Related Compound C

2-chloro-4-amino-6,7-dimethoxyquinazoline Doxazosin Mesylate_Doxazosin Related Compound C