EOS med chem is the only manufacturer that provides excellent quality chemistry products and services at affordable rates. The experts working here are highly trained to handle these chemicals used in the creation of medicines used for treating various life-threatening diseases. We are into the manufacturing of chemical products after doing a deep research for the same.
EOS team of experts holds the work experience of more than ten years, and therefore we can assure you about the quality and superiority of the products and services we offer to all our valued clients around the globe. At present, this organization is listed among the most leading pharmaceutical suppliers around the world. We always supply products keeping the affordability in mind.
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EMAIL: info@eosmedchem.com; eosmedchem@gmail.com; eosmedchem@qq.com
TEL: 0086-531-69905422
GMP PLANT: No. 37, Yulong Road, Qufu City, Shandong Province.
執大象，天下往，往而無害，安平泰
WEB: www.eosmedchem.com
EMAIL: info@eosmedchem.com; eosmedchem@gmail.com; eosmedchem@qq.com
TEL: 0086-531-69905422
GMP PLANT: No. 37, Yulong Road, Qufu City, Shandong Province.
Catalogue No. Impurity Name Structure IUPAC Name
Oxytetracycline Impurities
EOS 1960004
Oxytetracycline EP Impurity C
/ 2-acetyl-2- decarbamoyl oxytetracyclin
(4S,4aR,5S,5aR,6S,12aS)-2-
acetyl-4-(dimethylamino)- 3,5,6,10,12,12a-hexahydroxy- 6-methyl-4a,5a,6,12a- tetrahydrotetracene - 1,11(4H,5H)-dion
Primaquine Impurities
EOS 2130001
Primaquine Phosphate Secaquine Impurity
N3-(6-methoxyquinolin-8- yl)Pentane-1,3-Diamine
Celecoxib Impurities
EOS 30008
Celecoxib Carboxylic Acid
4-[1-[4-(Aminosulfonyl) phenyl]-3-(trifluoromethyl)- 1H-pyrazol-5-yl]benzoic Acid; Celebrex Carboxylic Acid
EOS 30010
Celecoxib 2-methyl analog / 4-Desmethyl-2-methyl Celecoxib
4-[5-(2-Methylphenyl)-3- trifluoromethyl-1H-pyrazol-1- yl]benzenesulfonamide
Etoricoxib Impurities
EOS 1020002
Etoricoxib USP Related compound A
1-(4-Methylsulfonylphenyl) ethanone
EOS 1020003
Etoricoxib USP Related Compound B
p-(Methylsulfonyl)phenyl]- acetic Acid/4-Methane sulfonylphenyl)acetic Acid
Candesartan Impurities
EOS 290008
Candesartan Impurity 5
Triphenylmethyl methyl Ether
Fenticonazole Impurities
EOS 3560001
Fenticonazole Impurity A / Econazole EP Impurity A
(+/-)-α-(2,4-Dichlorophenyl)- 1H-imidazole-1-ethanol; α- (2,4- Dichlorophenyl)-1H- imidazole-1-ethanol
Pioglitazone Impurities
EOS 1190008
Pioglitazone Amine Impurity
2-[2-(4-Aminophenoxy) ethyl- 5-ethylpyridine
EOS 1190007
Pioglitazone Bromo Impurity
2-[2-(4-Bromophenoxy) ethyl- 5-ethylpyridine sulfate salt
Ranolazine Impurities
EOS 770009
Ranolazine USP Related Compound B / Desmethoxy Ranolazine
N-(2,6-Dimethylphenyl)-4-(2- hydroxy-3-phenoxypropyl)-1- piperazineacetamide
EOS 770014
O-Desaryl Ranolazine
4-(2,3-Dihydroxypropyl)-N- (2,6-dimethylphenyl)-1- piperazineacetamide
EOS 770015
Ranolazine N-des acetamide
1-(2-Methoxyphenoxy)-3- (piperazin-1-yl)propan-2-ol
EOS 770004
Ranolazine Relate Compound C
N-(2,6-dimethylphenyl)-2- (piperazine-1-yl) acetamide
EOS 770005
Ranolazine Mono Amide Impurity
2-Chloro-N-(2,6-dimethyl- phenyl)-acetamide
EOS 770010
Ranolazine Alcohol Dimer Impurity
1-Piperazineaceto-2’,6’- xylidide; 4-[(2,6- Dimethyl phenyl)aminocarbonylmethyl] piperazine; N-(2,6- Dimethyl phenyl)-2-piperazinyl acetamide
Trazodone Impurities
EOS 620021
Trazodone Diaryl Impurity
1,4-Bis(3-chlorophenyl)- piperazine
EOS 620020
Bispiperazine Trazodone
1,3-bis(4-(3-chlorophenyl) piperazin-1-yl)propane
EOS 620019
Deschloro Trazodone
2-[3-(4-Phenyl-1-piperazinyl) propyl]-1,2,4-triazolo[4,3- a]pyridin- 3(2H)-one
EOS 620006
Trazodone Impurity F / Trazodone Related Compound F
1-(3-chlorophenyl)-4-(3-chloro propyl)piperazine hydrochloride
EOS 620015
3-chlorophenyl piperazine HCl salt
1-(3-Chlorophenyl)piperazine Hydrochloride
Neostigmine Impurities
EOS 2640004
Nor Neostigmine
Dimethylcarbamic Acid 3- (Dimethylamino)phenyl Ester
EOS 2640001
3-(Dimethylamine) phenol
3-(Dimethylamine) phenol
Alfuzosin Impurities
EOS 259008
Alfuzosin EP Impurity B
2-chloro-6,7-dimethoxyquina zolin-4-amine / 4-Amino-2- chloro- 6,7-dimethoxy quinazoline
EOS 259005
Alfuzosin EP Impurity F
N-(3-(((4-amino-6, 7-dihydro xyquinazolin-2-yl) methyl) (methyl) amino) propyl) tetrahydrofuran-2- carboxamide
Colsevelam Impurities
EOS 187007
Aziobis (Colsevelam impurity- 7)
2,2’-azobis(2- amidinopropane) dihydrochloride
Lidocaine Impurities
EOS 1040011
Lidocaine BP Impurity B / Lidocaine N-Oxide
2-(Diethylazinoyl)-N-(2,6- dimethylphenyl)acetamide
EOS 1040014
Lidocaine BP Impurity H
2-Chloro-N-(2,6- dimethylphenyl) acetamide
EOS 1040003
Lidocaine BP Impurity C
N-(2,6-Dimethylphenyl) acetamide
EOS 1040004
Lidocaine BP Impurity D
N-(2,6-Dimethylphenyl)-2- (ethylamino) acetamide HCl
EOS 1040020
Lidocaine BP Impurity F / Lidocaine 2,3-Dimethyl Analog
2-(Diethylamino)-N-(2,3- dimethyl phenyl) acetamide
EOS 1040007
Lidocaine BP Impurity G
N-(2,6-Dimethylphenyl)-2-[(1- methylethyl)amino]acetamide HC
EOS 1040008
Lidocaine BP Impurity I / Lidocaine 2,4-Dimethyl Analog
2-(Diethylamino)-N-(2,4- dimethylphenyl)acetamide
EOS 1040019
Lidocaine BP Impurity K / N- Desethyl-N-Methyl Lidocaine HCl
N-(2,6-Dimethylphenyl)-2- (ethylmethylamino)acetamid
Quetiapine Impurities
EOS 126004
Quetiapine EP Impurity D / Quetiapine Dimer
11,11’-(1,4-Piperazinediyl)bis- dibenzo[b,f][1,4]thiazepine;
EOS 126002
Quetiapine EP Impurity B / Quetiapine Related Compound B
11-(Piperazin-1-yl)dibenzo[b,f] [1,4]thiazepine dihydrochloride
EOS 126003
Quetiapine EP Impurity P
11-(4-Ethyl-1-piperazinyl)- dibenzo [b,f][1,4]thiazepine Dihydrochloride
EOS 1260018
Quetiapine EP Impurity T
11-Morpholino- dibenzo[b,f][1,4] thiazepine hydrochloride
EOS 1260013
Quetiapine EP Impurity G
dibenzo [b, f] [1, 4] thiazepin- 11(10H)-one
EOS 1260011
Quetiapine Desethoxy Impurity / Quetiapine EP Impurity I
2-(4-
(dibenzo[b,f][1,4]thiazepin- 11-yl)piperazin-1-yl)ethanol hemifumarate
Cetirizine Impurities
EOS 330010
Cetirizine 4-chlorobenzhydrol Impurity / Meclizine USP Related Compound A
Cetirizine 4-chlorobenzhyrole
EOS 330011
Cetirizine 4- chlorobenzophenone Impurity
(4-Chlorophenyl) phenylmethanone
EOS 330001
Cetirizine EP Impurity A / Chlorobenzhydryl piperazine (CBHP)
1-((4-chlorophenyl)(phenyl) methyl)piperazine
EOS 330007
Cetirizine EP Impurity G (Cetirizine ethanol)
2-(4-((4-chlorophenyl) (phenyl)methyl)piperazin-1- yl)ethanol
Cinacalcet Impurities
EOS 2310013
Cinacalcet Phenyl Isomer Impurity
(R)-N-(1-(naphthalen-1- yl)ethyl)-3-phenylpropan-1- amine
EOS 2310023
Cinacalcet 6-Ethanamine Impurity
1-(Naphthalen-6- yl)Ethanamine
EOS 2310027
Cinacalcet 6-Ethanone Impurity
1-(Naphthalen-6-yl)Ethanone
EOS 2310020
Cinacalcet 6-Ethanol Impurity
1-(Naphthalen-6-yl)Ethanol
EOS 2310037
Cinacalcet Impurity I
(E)-3-(3-
(trifluoromethyl)phenyl) acrylic acid
EOS 2310013
Cinacalcet Phenyl Isomer Impurity
(R)-N-(1-(naphthalen-1- yl)ethyl)-3-phenylpropan-1- amine
Venlafaxine Impurities
EOS 286005
Venlafaxine EP Impurity C
1-[2-Amino-1-(4-
methoxyphenyl) ethyl]cyclohexanol Hydrochloride
Darifenacin Impurities
EOS 1530004
Darifenacin Bromo impurity
5-(2-Bromoethyl)-2,3- dihydrobenzo [2,3-b]furan
EOS 1530005
Darifenacin Cyano Pyrrolidine Impurity
(S)-3-(Cyanodiphenylmethyl)- pyrro lidine HBr/(3S)-α,α- Diphenyl-3- pyrrolidineacetonitrile Hydrochloride
EOS 1530007
Darifenacin impurity / 1-Tosyl- 3-pyrrolidinol Tosylate
1-[(4-Methylphenyl)sulfonyl]- 3-pyrrolidinol-3-(4- Methylbenzene sulfonate)
Nicotinamide Impurities
EOS 2180005
Nicotinamide Impurity A / Nicotinic Acid
3-Pyridinecarboxylic Acid/3- Carboxylpyridine/Niacin
EOS 2180001
Nicotinamide Impurity B / 3- pyridin ecarbonitrile / Nicotinonitrile
3-Azabenzonitrile/3- Cyanopyridine
EOS 2180002
Nicotinamide Impurity C / Picolinamide
2-Pyridinecarboxamide/2- Carbamoylpyridine
EOS 2180003
Nicotinamide Impurity D / Isonicotinamide
4-Pyridinecarboxamide/4- (Aminocarbonyl)pyridine
EOS 2180004
Nicotinamide Impurity E / Nicotinamide N-Oxide
1-Oxide 3- Pyridinecarboxamide
Albendazole Impurities
EOS 960001
Albendazole EP Impurity A / Albendazole Amine
5-(Propylsulphanyl) -1H- benzimidazol-2-amine; Desmethoxycarbonyl Albendazole
EOS 960002
Albendazole EP Impurity B / Sulfoxide
Methyl[5-Propylsulphonyl)- 1H-benzimidazol-2- yl]carbamate; Albendazole Oxide
EOS 960003
Albendazole Impurity C / Albendazole Sulfone
Methyl[5-Propylsulphonyl)- 1H-benzimidazol-2- yl]carbamate
EOS 960004
Albendazole EP Impurity D
5-(Propylsulphonyl)- 1Hbenzimidazol-2-amine
EOS 960005
Albendazole EP Impurity E
Methyl (1H-benzimidazol-2- yl)carbamate
EOS 960006
Albendazole EP Impurity F
Methyl [[]5-(methylsulphanyl)
-1H-benzimidazol-2-yl] carbamate;
EOS 960010
Albendazole EP Impurity K
Methyl (6-(butylthio)-1H- benzo(d)imidazole-2- yl)carbamate
EOS 960011
Albendazole EP Impurity L
Methyl(6-(isoproylthio)-1H- benzo(d)imidazole-2- yl)carbamate
EOS 960012
Albendazole EP Impurity I
Methyl(6-propoxy-1H- benzo[d]imidazole-2-yl) carbamate
EOS 960013
Albendazole EP Impurity J
Methyl (4,6-dichloro-1H beno(d)imidazole-2- yl)carbamate
Ondansetron Impurities
EOS 1580001
Ondansetron EP Impurity D
9-Methyl-3-methylene- 1,2,3,9-tetrahydro-4H- carbazol-4-one
EOS 1580004
Ondansetron EP Impurity H (3RS)-3-[(2-Methyl-1H-
imidazol-1-yl)methyl]-1,2,3,9- tetrahydro-4H-carbazol-4-one
Bupropion Impurities
EOS 25004
Chloropropionophenone
3-chloropropiophenone OR 1-
(3-
Chlorophenyl)propan-1-one
EOS 25014
Bupropion Related Compound C
1-(3-Chlorophenyl)-2-hydroxy- 1-propanone
Olanzapine Impurities
EOS 109003
Olanzapine Impurity C
1(Chloromethyl) 1methyl4 (2methyl 10Hthieno[2,b][1,5] benzodiazepin-4-yl)- piperazinium Chloride
EOS 109001
Olanzapine Impurity A / Olanzapine Related Compound A
5-Methyl-2-((2-nitro phenyl)amino)-3- thiophenecarbonitrile
EOS 109005
Olanzapine Related Compound 07
2-Amino-5-methyl-thiophene- 3-carbonitrile
Clonidine Impurities
EOS 281001
Clonidine 2,6-dichloroaniline Impurity
2,6-dichloroaniline
EOS 281004
2,6 dichlorophenyl carbonimidic dichloride / Clonidine Impurity II
2,6 dichloro phenyl carbonimidic dichloride
EOS 281002
N-(2,6-dichlorophenyl) formamide
N-(2,6-dichlorophenyl) formamide
Diclofenac Impurities
EOS 48018
Diclofenac Oxindole Impurity
/ Diclofenac EP Impurity E
1,3-Dihydro-2H-indol-2-one
EOS 48005
Diclofenac Impurity F
N-Chloroacetyl-(2,6-dichloro phenyl) phenylamine OR (Alpha-(2,6-Dichloro phenyl)- 4-chloroacetanilide)
EOS 48006
Diclofenac Isopropyl Ester
Isopropyl [2 - [(2, 6 – dichloro phenyl amino]phenyl]acetate
Omeprazole Impurities
EOS 112002
Omeprazole Related Compound B / Omeprazole Impurity A
5-methoxy-1H-benzimidazole- 2-thiol
EOS 112010
Omeprazole Impurity XI
2-Chloromethyl-3,5dimethyl- 4-methoxypyridine Hydrochloride
Fingolimod Impurities
EOS 1270005
Fingolimod Palmitate Amide
N-(1-Hydroxy-2- (hydroxymethyl)-4-(4- octylphenyl)butan-2- yl)palmitamide
EOS 1270013
Fingolimod Impurity 7
2-Nitro-2-[2-(4-
octylphenyl)ethyl]-1,3- propanediol
EOS 1270014
Fingolimod Impurity 12
β-Amino-4- octylbenzenebutanol Hydrochloride
Propafenone Impurities
EOS 260003
Propafenone EP Impurity C
2'-(Oxiranylmethoxy) -3- phenylpropiophenon
EOS 260005
Propafenone EP Impurity E
DepropylaMino Chloro Propafenone; 1-[2-(3-Chloro- 2-hydroxypropoxy)phenyl]-3- phenyl-1-propanone
Propranolol Impurities
EOS 188002
Propranolol Diol Derivative
(2RS)-3-(naphthalen-1- yloxy)propane-1,2-diol
EOS 188001
Propranolol Epoxide Impurity
2-((naphthalen-1- yloxy)methyl)oxirane
Chlorpromazine Impurities
EOS 2300003
Chlorpromazine EP Impurity E
Perphenazine 2- Chlorophenothiazine Impurity
EOS 2300007
Chlorpromazine N-oxide
N-(2,6-Dimethylphenyl)-4-(2- hydroxy-3-phenoxypropyl)-1- piperazineacetamide
Nadolol Impurities
EOS 1380006
Nadolol EP Impurity F
(2RS)-1-[(1,1-Dimethylethyl) amino] -3-(naphthalen-1- yloxy)propan-2-ol
Rufinamide Impurities
EOS 3000001
Rufinamide Impurity 6 / USP Rufinamide Related Compound A
1-[(2-Fluorophenyl)methyl]- 1H-1,2,3-triazole-4- carboxamide
EOS 3000002
Rufinamide Related Compound B
Methyl 1-(2,6-Difluorobenzyl)- 1H-1,2,3-triazole-4- carboxylate
EOS 3000003
Rufinamide Impurity 1 / 2,6- Didesfluoro Rufinamide
1-(Phenylmethyl)-1H-1,2,3- triazole-4-carboxamide
Fenofibrate Impurities
EOS 59001 Fenofibrate EP Impurity A (4-chlorophenyl)(4-hydroxy phenyl)methanone
EOS 59002 Fenofibrate EP Impurity B 2-[4-(4-chlorobenzoyl)phenoxy]-2- methylpropanoic acid
EOS 59003 Fenofibrate EP Impurity C (3RS)-3-[4-(4-chlorobenzoyl) phenoxy]butan-2-one
EOS 59004 Fenofibrate EP Impurity D Methyl 2-[4-(4-chlorobenzoyl) phenoxy]- 2-methylpropanoate
EOS 59005 Fenofibrate EP Impurity E Ethyl 2-[4-(4-chlorobenzoyl) phenoxy]-2- methylpropanoate
EOS 59006 Fenofibrate EP Impurity F (4-Chlorophenyl)[4-(1- methylethoxy)phenyl]methanone
EOS 59007
Fenofibrate EP Impurity G 1-methylethyl2-[[2-[4-(4-chloro benzoyl)phenoxy ]-2-methyl propanoyl]oxy]-2-methyl propanoate
Lamotrigine Impurities
EOS 980007 Lamotrigine Impurity B / E-Isomer of Iminoguanidine For Lamotrigine 2-Cyano-2-[(3,4-dichlorophenyl) hydrazono]acetamide
EOS 980010 Lamotrigine EP Impurity E 2,3-Dichlorobenzoic acid
EOS 980008 Lamotrigine EP Impurity D / Dioxo Lamotrigine 6-(2,3-Dichlorophenyl)-1,2,4-triazine- 3,5(2H,4H)-dione; Dioxo Lamotrigine
EOS 980010 Lamotrigine EP Impurity E 2,3-Dichlorobenzoic acid
EOS 980011 2,3-Dichlorobenzoyl Cyanide Lamotrigine 2,3-Dichlorobenzoyl Nitrile
EOS 980012 Lamotrigine Impurity / N2- Methyllamotrigine 6-(2,3-dichlorophenyl)-3-imino-2- methyl-1,2,4-triazin-5-amine
EOS 980013
Lamotrigine Impurity N,N’-[6-(2,3-Dichlorophenyl)-1,2,4- triazine-3,5-diyl]bis[2,3- Dichlorobenzamide
EOS 980015 Lamotrigine Impurity / 3,5- Dichlorobenzoyl Cyanide
3,5-Dichlorophenyl(oxo)acetonitrile
EOS 980016 Lamotrigine Impurity 6-(3,5-Dichlorophenyl)-1,2,4-triazine-3,5- diamine
EOS 980017 Lamotrigine Impurity 6-(3,4-Dichlorophenyl)-1,2,4-triazine-3,5- diamine
Metoprolol Impurities
EOS 103004 Metoprolol Related Compound B (+/-)1-chloro-2-hydroxy-3-[4-(2- methoxyethyl)phenoxy]-propane
EOS 103015 Metoprolol Epoxide Impurity 1-[2-(2-Methoxyethyl)phenyoxy]-2,3- epoxypropane
Aceclofenac Impurities
EOS 284007 Aceclofenac Impurity A / Diclofenac Sodium 2-(2-(2,6-dichlorophenylamino) phenyl) sodium acetate
EOS 284005 Aceclofenac Impurity B / Diclofenac Methyl Ester Methyl [2-[(2,6-dichlorophenyl) amino]phenyl]acetate
EOS 284006 Aceclofenac Impurity C Ethyl [2-[(2,6-dichlorophenyl)amino] phenyl]acetate
EOS 284002 Aceclofenac Impurity D Dichlorophenyl)amino]benzeneacetic Acid 2-Methoxy-2-oxoethyl Ester
EOS 284003
Aceclofenac Impurity E 2-[(2,6-Dichlorophenyl)amino] benzene aceticAcid 2-Ethoxy-2-oxoethyl Ester
EOS 284001
Aceclofenac Impurity F 2-[(2,6-Dichlorophenyl) amino] benzene acetic Acid 2-Oxo-2-(phenyl methoxy) ethyl Ester
EOS 284004 Aceclofenac Impurity I 1-(2,6-Dichlorophenyl)-1,3-dihydro-2H- indol-2-one
Paracetamol Impurities
EOS 2170006 Paracetamol Impurity A N-(2-hydroxyphenyl)acetamide
EOS 2170005 Paracetamol Impurity B N-(4-hydroxyphenyl)propanamide
EOS 2170007 Paracetamol EP Impurity D Acetylaniline; N-Phenylacetamide; N- phenylcetamide ; Acetanilide
EOS 2170008 Paracetamol EP Impurity E 1-(4-hydroxyphenyl)ethan-1-one; 4’- Hydroxyacetophenone
EOS 2170003 Paracetamol EP Impurity F p-Nitrophenol; 1-Hydroxy-4- nitrobenzene
EOS 2170004 Paracetamol EP Impurity G 4-[1-(hydroxyamino)ethylidene] cyclohexa-2,5-dien-1- one
EOS 2170009 Paracetamol EP Impurity H N-[4-(Acetyloxy)phenyl]acetamide
EOS 2170010 Paracetamol EP Impurity I 1-(2-hydroxyphenyl)ethan-1-one
EOS 2170002 Paracetamol EP Impurity J N-(4-Chlorophenyl)acetamide
EOS 2170001 Paracetamol EP Impurity K p-Aminophenol; 1-Amino-4- hydroxybenzene
Acetazolamide Impurities
EOS 11003 Acetazolamide EP Impurity B N-(1,3,4-thiadiazol-2-yl)acetamide
EOS 11005 Acetazolamide EP Impurity D 2-Amino-1,3,4 thiadiazole-5-Sulfonamide
EOS 11007
Acetazolamide EP Impurity F N-[5-[(5-Acetamido-1,3,4-thiadiazol-2- yl)sulfonyl]sulfamoyl-1,3,4-thiadiazol-2- yl]acetamide
EOS 11008 Acetazolamide Disulphide Impurity N,N’-[Dithiobis(1,3,4-thiadiazole-5,2- diyl)]bisacetamide
Aripiprazole Impurities
EOS 197010 Aripiprazole Impurity A 7-Hydroxy-3,4-dihydroquinolin-2(1H)- one
EOS 197007 Aripiprazole USP Related Compound G / Aripiprazole EP Impurity E / Dehydro Aripiprazole
7-[4-[4-(2,3-Dichlorophenyl)-1- piperazinyl]butoxy]-2(1H)-Quinolinone
EOS 197009
Aripiprazole Impurity D 7-[4-[4-(3-Chlorophenyl)-1- piperazinyl]butoxy]-3,4-dihydro-2(1H)- quinolinone
EOS 197011 Aripiprazole Diquinoline Butanediol Impurity (USP) 1,4-bis[(3,4-Dihydro-2(1H)-quinolinone- 7-yl)oxy]-butane
Carvedilol Impurities
EOS 35002 Carvedilol Related Compound D 4-(2,3-Epoxypropoxy)carbazole
EOS 35003
Carvedilol EP Impurity C (2RS)-1-[Benzyl[2-(2-
methoxyphenoxy)ethyl] amino]-3-(9H- carbazol-4- yloxy)propan-2-ol
Atenolol Impurities
EOS 500008
Atenolol EP Impurity E 2,2’-[2-Hydroxypropan-1,3-diylbis(oxy- 4,1-phenylene)]diacetamide
EOS 500012 Atenolol EP Impurity H / Atenolol USP Related Compound B 2-[4-[(2RS)-2-hydroxy-3-[(1-
methylethyl)amino]propoxy]phenyl]acet onitrile
EOS 500007 Atenolol EP Impurity D 2-[4-[(2RS)-3-chloro-2-
hydroxypropoxy]phenyl]acetamide
List of all Levothyroxine Impurities
STRUCTURE CHEMICAL NAME M.F. / M. WT. LEAD TIME
Levothyroxine EP Impurity A (2S)-2-Amino-3-[4-(4-hydroxy-3- iodophenoxy)-3,5- diiodophenyl]propanoic acid Chemical Formula: C15H12I3NO4
Molecular Weight: 650.97
IN STOCK
Levothyroxine EP Impurity B (2S)-2-Amino-3-[4-(3-chloro-4- hydroxy-5-iodophenoxy)-3,5- diiodophenyl] propanoic acid Chemical Formula: C15H11ClI3NO4
Molecular Weight: 685.42
IN STOCK
Levothyroxine EP Impurity C
[4-(4-Hydroxy-3-iodophenoxy)-3,5- diiodophenyl]acetic acid Chemical Formula: C14H9I3O4
Molecular Weight:
IN STOCK
621.93
Levothyroxine EP Impurity D
[4-(4-Hydroxy-3,5-diiodophenoxy)- 3,5-diiodophenyl]acetic acid Chemical Formula: C14H9I3O4
Molecular Weight: 621.93
IN STOCK
Levothyroxine EP Impurity E
(2S)-2-Amino-3-[4-(4-
hydroxyphenoxy)-3,5-diiodophenyl]- propanoic acid Chemical Formula: C15H13I2NO4
Molecular Weight: 525.08
IN STOCK
Levothyroxine EP Impurity F
(2S)-2-Amino-3-[4-[4-(4-hydroxy-3,5- diiodophenoxy)-3,5-diiodophenoxy]- 3,5-diiodophenyl]propanoic acid Chemical Formula: C21H13I6NO5
Molecular Weight: 1120.76
IN STOCK
Levothyroxine EP Impurity H
4-(4-Hydroxy-3,5-diiodophenoxy)- 3,5-diiodobenzoic acid Chemical Formula: C13H6I4O4
Molecular Weight: 733.80
IN STOCK
Levothyroxine EP Impurity I
4-(4-Hydroxy-3,5-diiodophenoxy)- 3,5-diiodobenzaldehyde Chemical Formula: C13H6I4O3
Molecular Weight: 717.80
IN STOCK
Levothyroxine EP Impurity J (2S)-2-Amino-3-[4-(4-hydroxy-3- iodophenoxy)-3-iodophenyl] propanoic acid Chemical Formula: C15H13I2NO4
Molecular Weight: 525.08
IN STOCK
Levothyroxine EP Impurity K
(2S)-2-Amino-3-[4-(4-hydroxy-3,5- diiodophenoxy)-3-iodophenyl] propanoic acid Chemical Formula: C15H12I3NO4
Molecular Weight: 650.97
IN STOCK
Levothyroxine Ethyl Ester Impurity Ethyl 2-amino-3-(4-(4-hydroxy-3,5- diiodophenoxy)-3,5-diiodo phenyl) propanoate Chemical Formula: C17H15I4NO4
Molecular Weight: 804.92
IN STOCK
Levothyroxine Methyl Ester Impurity
Methyl 2-amino-3-(4-(4-hydroxy-3,5- diiodophenoxy)-3,5-diiodo phenyl) propanoate Chemical Formula: C16H13I4NO4
Molecular Weight: 790.90
IN STOCK
Levothyroxine N-Acetyl Impurity
N-Acetyl-O-(4-hydroxy-3,5- diiodophenyl)-3,5-diiodo-L-tyrosine Chemical Formula: C17H13I4NO5
Molecular Weight: 818.91
IN STOCK
Levothyroxine N-Formyl Impurity (S)-2-Amino-3-[4-(4-hydroxy-3,5- diiodophenoxy)-3,5-diiodophenyl]- N-methylpropanamide Chemical Formula: C16H14I4N2O3
Molecular Weight: 789.91
IN STOCK
Levothyroxine Amide Impurity
2-(4-(4-Hydroxy-3,5-diiodophenoxy)- 3,5-diiodophenyl)acetamide Chemical Formula: C14H9I4NO3
Molecular Weight: 746.84
IN STOCK
Levothyroxine T4 Hydroxy Acetic Acid Impurity
2-Hydroxy-2-(4-(4-hydroxy-3,5- diiodophenoxy)-3,5- diiodophenyl)acetic acid Chemical Formula: C14H8I4O5
Molecular Weight: 763.83
IN STOCK
3,5,3’,5’-Tetraiodo Thyrolactic Acid Impurity
2-hydroxy-3-(4-(4-hydroxy-3,5- diiodophenoxy)-3,5- diiodophenyl)propanoic acid Chemical Formula: C15H10I4O5
Molecular Weight: 777.85
IN STOCK
