IMPURITY REFERENCE EP Impurities, USP Impurities, BP Impurities, Labeled Impurities & Pharmaceutical Impurities lgcstandards.com [email protected] Chemical Name CAS Number Catalog Number Abacavir 136470-78-5 A104990 Abacavir Sulfate 188062-50-2 A105000 Abacavir Carboxylate 384380-52-3 A105005 ent-Abacavir 136470-79-6 A105015 Abacavir 5’-Phosphate 136470-77-4 A105020 Abacavir 5’-4-Chloro-6-methylpyrimidine-2,5-diamine 1443421-69-9 A105035 Acarbose D-Fructose Impurity 1013621-79-8 A123515 Acebutolol Dimer Impurity 1330165-98-4 A123890 Aceclofenac Benzyl Ester 100499-89-6 A130410 Aceclofenac Ethyl Ester 139272-67-6 A130415 Aceclofenac Methyl Ester 139272-66-5 A130420 bis(2-Acetamido-1,3,4-thiadiazol-5-yl) Disulfide 99055-56-8 A132750 4-Acetamidobenzenesulfonic Acid 121-62-0 A141875 2-Acetamidophenol 614-80-2 A158490 N-(5-Acetamido-1,3,4-thiadiazole-2-yl) Acetazolamide A160000 3-Acetamidophthalic Acid 15371-06-9 A161140 Acetaminophen Acetate (Acetaminophen Impurity) 2623-33-8 A161215 N-[5-(Acetylamino)-2-hydroxyphenyl]-N-(4-hydroxyphenyl)acetamide 98966-17-7 A161245 Acetic Aceclofenac 1215709-75-3 A161550 Acetoacetamide 5977-14-0 A161805 9-[4-Acetoxy-3-(acetoxymethyl)butyl]-2-amino-6-chloropurine 97845-60-8 A164140 1-[(2β,3α,5α,16β,17β)-3-(Acetyloxy)-17-hydroxy-2-(1-piperidinyl)androstan- 50587-95-6 A164495 16-yl]-1-methylpiperidinium Bromide (2β,3α,5α,16β,17β)-17-Acetoxy-3-hydroxy-2-(4-morpholinyl)-16-(1- 119302-24-8 A165650 pyrrolidinyl)androstane 21-Acetoxy-11β-hydroxy-16α,17α-propylmethylenedioxpregna-1,4-diene- 51333-05-2 A165740 3,20-dione 21-Acetoxy-11β-hydroxypregna-1,4,16-triene-3,20-dione 3044-42-6 A165755 N-Acetyl-N-[2-(7-methoxy-1-naphthalenyl)ethyl]acetamide 1379005-34-1 A167620 20α-Acetoxy-4-pregnen-3-one 5035-09-06 A167690 1-Acetyl-2-imidazolidinone 5391-39-9 A167955 Acyclovir N,O-Diacetate 75128-73-3 A167995 N2-Acetyl Acyclovir 110104-37-5 A168015 N-Acetyl Adamantamine 880-52-4 A168050 5-(Acetylamino)-1,3,4-thiadiazole-2-sulfonic Acid Potassium Salt A168090 2-Acetamido-5-mercapto-1,3,4-thiadiazole 32873-56-6 A168105 4-Acetylamino-2-chlorophenol 3964-54-3 A168175 4-Acetylamino-3-hydroxybenzoic Acid Ethyl Ester 1346604-18-9 A168250 3'-N-[[4-(Acetylamino)phenyl]sulfonyl]-3'-N-demethyl Azithromycin 612069-30-4 A168295 20 Martin Ross Avenue North York, ON Canada, M3J 2K8 2 www.trc-canada.com [email protected] +1-416-665-9696 Chemical Name CAS Number Catalog Number N-Acetyl-4-aminosalicylic Acid 50-86-2 A168325 Acetanilide (Acetylaniline) 103-84-4 A168330 21-O-Acetyl Dexamethasone 1177-87-3 A168480 N-Acetyl Cefpodoxime Proxetil 947692-15-1 A168610 3-Acetylbenzophenone 66067-44-5 A170975 3-Acetylaminophthalic Anhydride 6296-53-3 A170980 4-Acetoxy-2',4'-difluorobiphenyl 59089-67-7 A171095 Acetylclonidine 54707-71-0 A172120 3-Acetyl-17-deacetyl Rocuronium Bromide 1190105-63-5 A172180 N-Acetyl-2,6-dichlorodiphenylamine 84803-53-2 A173570 5-Acetyl-10,11-dihydro-5H-dibenzo[b,f]azepine 13080-75-6 A173695 3’-Acetyl-4’-(2,3-epoxypropoxy)butyranilide 28197-66-2 A173780 3-O-Acetyl Ezetimibe 1044664-24-5 A173795 Acetylfentanyl 3258-84-2 A175000 N-(3-Acetyl-4-hydroxyphenyl)butanamide 40188-45-2 A178975 (±)-N-[3-Acetyl-4-[2-hydroxy-3-[(1- 57898-79-0 A178980 methylethyl)amino]propoxy]phenyl]propanamide Monohydrochloride 1-Acetylimidazolidinethione 5391-52-6 A179185 O-Acetyl Losartan 1006062-27-6 A185300 3-(Acetylmethylamino)-1-propanesulfonic Acid Calcium Salt 233591-26-9 A186550 N-Acetyl Metoclopramide 5608-13-9 A186860 N2-Acetyl Neamine A187013 7-Acetyl Paclitaxel 92950-39-5 A187375 N-Acetylpiperazine-N’-(4-phenol) Ketoconazole 1346598-39-7 A187500 3-Acetylpyridine 350-03-8 A187600 17-Acetyloxy-pregna-1,4-diene-3,20-dione (~90%) 2668-74-8 A187710 3-Acetyl Rocuronium Bromide 122483-73-2 A187730 Acetylsalicylic Anhydride 1466-82-6 A187785 Acetylsalicylsalicylic Acid 530-75-6 A187788 4'-Acetyl Simvastatin 145576-25-6 A187795 N-Acetyl Sulfamethoxazole 21312-10-7 A187885 13,14-Anhydro-10-desacetyl Baccatin 1217248-58-2 A187928 (4-Acetyl-L-Serine)Leuprorelin Trifluoroacetic Acid Salt A187985 (3S,4aR,5S,6S,11R,12R,12aR)-5-(Acetyloxy)-1,2,3,4,4a,5,6,7,8,11,12,12a- dodecahydro-6,11,12-trihydroxy-9,12a,13,13-tetramethyl-4-methylene-8-oxo- 959572-72-6 A188100 6,10-methanobenzocyclodecen-3-yl β-(Dimethylamino)-benzenepropanoate Paclitaxel Impurity O 219783-77-4 A188120 (11β,16α)-21-(Acetyloxy)-11,16,17-trihydroxypregna-1,4,14-triene-3,20- 131918-72-4 A188360 dione 20 Martin Ross Avenue North York, ON Canada, M3J 2K8 3 www.trc-canada.com [email protected] +1-416-665-9696 Chemical Name CAS Number Catalog Number 2-Acetylthioethanesulfonic Acid 69536-71-6 A188740 7α-Acetylthio-17α-ethoxymethyl Testosterone A188745 3-Acetylthio-2-methylpropionic Acid 33325-40-5 A188775 N-Acetyl Tizanidine 173532-15-5 A188870 N-Acetyl L-Thyroxine 26041-51-0 A188890 1-O-Acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose 6974-32-9 A189330 5-Acetyl-3-chloroiminodibenzyl 25961-11-9 A189530 Acotiamide Methyl Ether 185103-80-4 A190265 Acyclovir 59277-89-3 A192400 Acyclovir Acetate 102728-64-3 A192410 Acyclovir N-Methyl-L-valinate Hydrochloride 1346617-39-7 A192430 Acyclovir Formacetal Dimer A192435 Acyclovir N-Methylene Dimer 1797131-64-6 A192450 o-Adamantylanisole 43109-77-9 A208250 Adapalene Methyl Ester 106685-41-0 A225010 7-ADCA Pivalamide 146794-70-9 A235000 Agomelatine Dimer Acetamide 1385018-58-5 A430020 Agomelatine Dimer Urea 185421-27-6 A430025 Albendazole Sulfone 75184-71-3 A511615 Albendazole Sulfoxide 54029-12-8 A511620 Albuterol Aldehyde Hemisulfate 156339-88-7 A514495 Albuterol Methyl Ether Hydrochloride Salt A514510 Albuterol Dimer Ether, 75% 147663-30-7 A514520 (3R,4R,5S)-4-(Acetylamino)-5-amino-3-(1-methylethoxy)-1-Cyclohexene-1- 1052063-36-1 A549303 carboxylic Acid Ethyl Ester Allylamine 107-11-9 A549550 6-Allyl-8β-carboxyergoline 81409-74-7 A549620 Almotriptan N-Oxide Hydrochloride Salt 1391054-49-1 A575210 Aloe-emodin 481-72-1 A575400 rac-cis-Ambroxol 107814-37-9 A575905 Ambroxol Cyclic Impurity Hydrochloride 15942-08-2 A575910 6-Aminoadamantane-1,3-diol 918830-94-1 A580150 Amino Albendazole 80983-36-4 A580945 Amino Albendazole Sulfone 80983-34-2 A580950 4-Aminoanastrozolium Bromide 906813-01-2 A583720 N-(4-Aminobenzenesulfonyl) Sulfamethoxazole 135529-16-7 A591480 3-Aminobenzoic Acid 1999-05-08 A591490 2-Amino-5(6)-benzoylbenzimidazole 52329-60-9 A593760 20 Martin Ross Avenue North York, ON Canada, M3J 2K8 4 www.trc-canada.com [email protected] +1-416-665-9696 Chemical Name CAS Number Catalog Number N-(4-Aminobenzoyl)-L-glutamic Acid 4271-30-1 A593770 N-(4-Aminobenzoyl)-β-alanine 7377-08-04 A593795 N-[1-(Aminocarbonyl)-2,2-dimethylpropyl]-1-(cyclohexylmethyl)-1H-indazole- 1863065-92-2 A593935 3-carboxamide 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethylester N-Methyl-L- 1346747-65-6 A597115 Valine (S)-4-(4-Aminobenzyl)-2-(1H)-oxazolidinone 152305-23-2 A599500 5-Amino-N,N'-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-2,4,6-triiodo-1,3- 60166-98-5 A601550 benzenedicarboxamide 4-Amino-1-[3,5-bis-O-(4-chlorobenzoyl)-2-deoxy-α-D-erythro- 1140891-02-6 A601700 pentofuranosyl]-1,3,5-triazin-2(1H)-one 4-Amino-1-[3,5-bis-O-(4-chlorobenzoyl)-2-deoxy-β-D-erythro-pentofuranosyl]- 1034301-08-0 A601705 1,3,5-triazin-2(1H)-one 2-(2-Amino-5-bromobenzoyl)pyridine 1563-56-0 A601785 6-Amino-5-bromoquinoxaline 50358-63-9 A601885 2-Amino-5-bromo-N-cyclohexyl-N-methylbenzylamine Dihydrochloride 10076-98-9 A601925 (S)-2-Aminobutyramide Hydrochloride 7682-20-4 A602890 α-[(Aminocarbonyl)thio]-4-[2-(5-ethyl-2-pyridinyl)ethoxy]benzenepropanoic Acid Ethyl Ester 868754-41-0 A603065 (Pioglitazone Impurity) 3-Amino-4-carbamoylpyrazole Hemisulfate 27511-79-1 A603076 1-[[(6R,7R)-7-Amino-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3- 103121-85-3 A603160 yl]methyl]-1-methylpyrrolidinium Chloride 7-Amino-3-chloro-3-cephem-4-carboxylic Acid 53994-69-7 A603305 4-Amino-5-chloro-2-methoxybenzoic Acid 7206-70-4 A603320 (1S,4R)-4-(2-Amino-6-chloro-9H-purin-9-yl)-2-cyclopentene-1-carboxylate 1246819-78-2 A603360 4-Amino-6-chloro-1,3-benzenedisulfonamide 121-30-2 A603375 7-Aminocephalosporanic Acid 957-68-6 A603415 4-Amino-5-chloro-2,1,3-benzothiadiazole 30536-19-7 A603430 4-Amino-2-chloro-6,7-dimethoxyquinazoline 23680-84-4 A603439 2-Amino-6-chloropurine 10310-21-1 A603505 (1S,4R)-4-(2-Amino-6-chloro-9H-purin-9-yl)-2-cyclopentene-1-methanol 172015-79-1 A603506 Hydrochloride 3-Amino-4-(2-chlorophenyl)-6-nitro-2(1H)-quinolinone 55198-89-5 A603590 (Clonazepam Impurity) 1-Aminocyclopropane-1-carboxylic Acid Methyl Ester Hydrochloride 72784-42-0 A603600 5-Amino-2-cyanobenzotrifluoride 654-70-6 A603630 (1S,4R)-cis-4-Amino-2-cyclopentene-1-methanol D-Tartrate 229177-52-0 A603640 2-Amino-N-cyclohexyl-N-methylbenzylamine 57365-08-9 A603680 7-Amino-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-3- 172426-88-9 A603780 quinolinecarboxylic Acid (1R,3S)-3-[2-Amino-6-(cyclopropylamino)-9H-purin-9- 208762-35-0 A603795 yl]cyclopentanemethanol [2-[(2-Amino-4-chlorophenyl)amino]phenyl](4-methyl-1- 65514-71-8 A603880 piperazinyl)methanone 3’-Amino-3’-deoxythymidine 52450-18-7 A604250 20 Martin Ross Avenue North York, ON Canada, M3J 2K8 5 www.trc-canada.com [email protected] +1-416-665-9696 Chemical Name CAS Number Catalog Number 7-Aminodesacetoxycephalosporanic Acid 22252-43-3 A604330 2-(2-Amino-6-(cyclopropylamino)-9H-purin-9-yl)-4-(hydroxymethyl)cyclopentanol A604530 4-[[(2-Amino-3,5-dibromophenyl)methylene]amino]cyclohexanol 1445719-53-8 A604603 trans-4-[[(2-Amino-3,5-dibromophenyl)methylene]amino]cyclohexanol 50910-53-7 A604605 (Ambroxol Impurity C) 2-Amino-3,5-dibromo-benzaldehyde 50910-55-9