Pharmaceutical impurities
Edition 2010/2011 All your needs for pharmaceutical analysis - email pharma@lgcstandards.com 17
Code Product Price Unit
4-Aminobenzoic Acid
MM 0094.00 Imp. B (EP): Benzocaine
H2N
O
O (A) 500 mg
New MM 0093.17 Imp. C (EP) as Hydrochloride: Aniline Hydrochloride
H2N
x HCl (B) 100 mg
Acebutolol Hydrochloride
MM 0435.00 Acebutolol Hydrochloride
(A) 500 mg
New MM 0435.01 Imp. A (EP): N-[3-Acetyl-4-[(2RS)-oxiran-
2-ylmethoxy]phenyl]butanamide
(A) 50 mg
MM 0435.02 Imp. B (EP) as Hydrochloride:N-[3-Acetyl-4-[(2RS)-
2-hydroxy-3-[(1-methylethyl)amino]-
propoxy]phenyl]acetamide Hydrochloride
(Diacetolol Hydrochloride)
(A) 100 mg
New MM 0435.03 Imp. C (EP): N-(3-Acetyl-4-hydroxyphenyl)butanamide O
(A) 100 mg
New MM 0435.04 Imp. D (EP) as Hydrochloride: 1-[5-Amino-2-
[(2RS)-2-hydroxy-3-[(1-methylethyl)amino]-
propoxy]phenyl]ethanone Dihydrochloride
(A) 50 mg
New MM 0435.05 Imp. E (EP) as Hydrochloride: N-[4-[(2RS)-2-
Hydroxy-3-[(1-methylethyl)amino]propoxy]-
phenyl]butanamide Hydrochloride
(A) 50 mg
New MM 0435.06 Imp. F (EP): N-[3-Acetyl-4-[(2RS)-
2,3-dihydroxypropoxy]phenyl]butanamide
(A) 50 mg
New MM 0435.07 Imp. G (EP): N,N'-[[(1-Methylethyl)imino]-
bis[(2-hydroxypropane-1,3-diyl)oxy(3-acetyl-
1,4-phenylene)]]dibutanamide (Acebutolol
Biamine)
(A) 50 mg
New MM 0435.08 Imp. H (EP): N,N'-[(2-Hydroxypropane-
1,3-diyl)bis[oxy(3-acetyl-1,4-phenylene)]]dibutanamide
(A) 50 mg
New MM 0435.09 Imp. I (EP): N-[3-Acetyl-4-[(2RS)-3-(ethylamino)-
2-hydroxypropoxy]-phenyl]butanamide
(A) 50 mg
New MM 0435.10 Imp. J (EP) as Hydrochloride: N-[3-Acetyl-4-
[(2RS)-2-hydroxy-3-[(1-methylethyl)amino]-
propoxy]phenyl]propanamide Hydrochloride
(A) 50 mg
New MM 0435.11 Imp. K (EP) as Hydrochloride: N-[3-Butanoyl-
4-[(2RS)-2-hydroxy-3-[(1-methylethyl)amino]-
propoxy]phenyl]butanamide Hydrochloride
(A) 50 mg
Pharmaceutical impurities
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Code Product Price Unit
Aceclofenac
MM 0181.00 Aceclofenac
(A) 250 mg
MM 0006.20 Imp. A (EP): [2-[(2,6-Dichlorophenyl)amino]phenyl]acetic Acid
(Diclofenac)
(A) 100 mg
MM 0006.10 Imp. B (EP): Methyl [2-[(2,6-Dichlorophenyl)amino]phenyl]acetate
(Methyl Ester of Diclofenac) NH
(A) 100 mg
MM 0006.11 Imp. C (EP): Ethyl 2-{2-[(2,6-dichlorophenyl)amino]phenyl}acetate
(Ethyl Ester of Diclofenac) NH
(A) 100 mg
MM 0181.01 Imp. D (EP): Methyl [[[2-[(2,6-Dichlorophenyl)
amino]phenyl]acetyl]oxy]-
acetate (Methyl Ester of Aceclofenac) NH
(A) 100 mg
MM 0181.02 Imp. E (EP): Ethyl [[[2-[(2,6-Dichlorophenyl)amino]phenyl]
acetyl]oxy]acetate (Ethyl Ester of Aceclofenac)
(A) 100 mg
MM 0181.03 Imp. F (EP): ): Benzyl[[[2-[(2,6-Dichlorophenyl)amino]phenyl]
acetyl]oxy]acetate (Benzyl Ester of Aceclofenac)
(A) 100 mg
MM 0181.04 Imp. G (EP): [[[[[2-[(2,6-Dichlorophenyl)amino]phenyl]-
acetyl]oxy]acetyl]oxy]acetic Acid (Acetic Aceclofenac)
(A) 100 mg
MM 0006.01 Imp. I (EP):1-(2,6-Dichlorophenyl)-1,3-dihydro-2H-indol-2-one
(A) 100 mg
New MM 0181.05 Imp. H (EP): [[[[[[[2-[(2,6-Dichlorophenyl)-
amino]phenyl]acetyl]oxy]acetyl]oxy]acetyl]-oxy]acetic
Acid (Diacetic Aceclofenac)
NH
(A) 50 mg
MM 0181.06 Isopropyl [2-[(2,6-Dichlorophenyl)amino]phenyl]acetate
(Isopropyl Ester of Diclofenac) NH
(A) 100 mg
Acetazolamide
MM 0648.00 Acetazolamide
(A) 500 mg
Acetylcysteine
MM 0024.00 N-Acetyl-L-cysteine
(A) 500 mg
MM 0024.03 Imp. A (EP): L-Cystine
NH2 (B) 100 mg
Pharmaceutical impurities
Edition 2010/2011 All your needs for pharmaceutical analysis - email pharma@lgcstandards.com 19
Code Product Price Unit
MM 0024.02 Imp. B (EP): L-Cysteine
(B) 100 mg
MM 0024.04 Imp. C (EP): N,N’-Diacetyl-L-cystine
(A) 100 mg
MM 0024.01 Imp. D (EP): N,S-Diacetyl-L-cysteine
(A) 100 mg
MM 0024.05 Sodium 2-Methyl-4,5-dihydro-1,3-thiazol-4-carboxylate
(A) 100 mg
MM 0024.06 N-Propionyl-L-cysteine
(A) 100 mg
Acetylsalicylic Acid
MM 0133.00 Acetylsalicylic Acid O
HO O
O (A) 500 mg
MM 0045.01 Imp. A (EP): 4-Hydroxybenzoic Acid
(B) 100 mg
MM 0045.02 Imp. B (EP): 4-Hydroxybenzene-1,3-dicarboxylic Acid
(4-Hydroxyisophthalic Acid)
(A) 100 mg
MM 0045.00 Imp. C (EP): Salicylic Acid
(A) 500 mg
MM 0133.01 Imp. D (EP): 2-[[2-(Acetyloxy)benzoyl]oxy]benzoic Acid
(Acetylsalicylsalicylic Acid)
(A) 100 mg
MM 0133.03 Imp. E (EP):2-[(2-Hydroxybenzoyl)oxy]benzoic Acid
(Salicylsalicylic Acid)
(A) 100 mg
MM 0133.02 Imp. F (EP): 2-(Acetyloxy)benzoic Anhydride
(Acetylsalicylic Anhydride)
(A) 100 mg
MM 0133.04 2-(2,4-Dihydroxybenzoyl)benzoic Acid
(A) 100 mg
N-Acetyltryptophan
New MM 1267.01 Imp. A (EP): Tryptophan HN
(A) 100 mg
New MM 0172.03 Imp. D (EP): (S)-2-Amino-3-(5-hydroxy-
1H-indol-3-yl)propanoic Acid (5-Hydroxytryptophan)
(A) 100 mg
Pharmaceutical impurities
20 All your needs for pharmaceutical analysis - email pharma@lgcstandards.com Edition 2010/2011
Code Product Price Unit
Aciclovir
MM 0061.00 Aciclovir
(A) 500 mg
MM 0061.01 Imp. A (EP): 2-[(2-Amino-6-oxo-1,6-dihydro-9H-purin-
9-yl)methoxy]ethyl Acetate
(A) 100 mg
MM 0061.02 Imp. B (EP): 2-Amino-1,7-dihydro-6H-purin-6-one (Guanine)
(B) 100 mg
MM 0061.04 Imp. D (EP): 2-[(2-Amino-6-oxo-1,6-dihydro-9H-purin-
9-yl)methoxy]ethyl Benzoate
(A) 100 mg
MM 0061.06 Imp. F (EP): N-[9-[(2-Hydroxyethoxy)methyl]-6-oxo-
6,9-dihydro-1H-purin-2-yl]acetamide
(A) 100 mg
MM 0061.07 Imp. G (EP): 2-[[(2-(Acetylamino)-6-oxo-1,6-dihydro-9H-purin-
9-yl]methoxy]ethyl Acetate
(A) 100 mg
MM 0061.08 Imp. H (EP): 2-[[2-(Acetylamino)-6-oxo-1,6-dihydro-9Hpurin-
9-yl]methoxy]ethyl Benzoate
(A) 100 mg
MM 0061.10 2,6-Dichloropurine
(B) 100 mg
Adenosine
MM 0784.00 Adenosine
(A) 500 mg
Adiphenine Hydrochloride
MM 1172.00 Adiphenine Hydrochloride
(A) 250 mg
Adrenaline Tartrate
MM 0614.00 Adrenaline Tartrate
(A) 500 mg
MM 0614.02 L-Adrenaline
(A) 500 mg
New MM 0614.13 Imp. C (EP) as Hydrochloride: 1-(3,4-Dihydroxyphenyl)-
2-(methylamino)ethanone
Hydrochloride (Adrenalone Hydrochloride)
(A) 100 mg
MM 0614.01 (1R)-1-(3,4-Dihydroxyphenyl)-2-methylaminoethanesulphonic Acid
(Adrenaline -Sulphonate)
SO3H (A) 100 mg
Pharmaceutical impurities
Edition 2010/2011 All your needs for pharmaceutical analysis - email pharma@lgcstandards.com 21
Code Product Price Unit
Alanine
MM 0566.00 Alanine
(A) 500 mg
Albendazole
MM 0382.00 Albendazole
(A) 500 mg
MM 0382.01 Imp. A (EP): 5-(Propylsulphanyl)-1H-benzimidazol-2-amine
(A) 100 mg
MM 0382.02 Imp. B (EP): Methyl [5-Propylsulphinyl)-1H-benzimidazol-
2-yl]carbamate
(A) 100 mg
MM 0382.03 Imp. C (EP): Methyl [5-Propylsulphonyl)-1H-benzimidazol-
2-yl]carbamate
(A) 100 mg
MM 0382.04 Imp. D (EP): 5-(Propylsulphonyl)-1H-benzimidazol-2-amine
(A) 100 mg
MM 2500.00 Imp. E (EP): Methyl (1H-Benzimidazol-2-yl)carbamate
(Carbendazim)
(A) 100 mg
Alfuzosin Hydrochloride
MM 0085.04 Imp. B (EP): 2-Chloro-6,7-dimethoxyquinazolin-4-amine
(A) 100 mg
Allobarbital
MM 0899.00 Allobarbital [Controlled Substance]
(A) 100 mg
Allopurinol
MM 0034.00 Allopurinol
(A) 500 mg
MM 0034.01 Imp. A (EP) as Hemisulphate: 5-Amino-1H-pyrazole-
4-carboxamide Hemisulphate
(A) 100 mg
MM 0034.05 Imp. D (EP): Ethyl 5-Amino1H-pyrazole-4-carboxylate
(A) 100 mg
MM 0034.06 Imp. E (EP): Ethyl 5-(Formylamino)-1H-pyrazole-4-carboxylate
(A) 100 mg
MM 0034.07 Oxypurinol
(A) 100 mg
Alprazolam
MM 0028.03 Imp. E (EP): (2-Amino-5-chlorophenyl)phenylmethanone
(B) 100 mg
Pharmaceutical impurities
22 All your needs for pharmaceutical analysis - email pharma@lgcstandards.com Edition 2010/2011
Code Product Price Unit
Alverine Citrate
MM 0454.00 Alverine Citrate
(A) 250 mg
MM 0454.02 Imp. A (EP): 1-Chloro-3-phenyl-propane
(A) 100 mg
MM 0454.03 Imp. B (EP): 3-Phenylpropan-1-ol
(A) 100 mg
MM 0454.04 Imp. C (EP) as Hydrochloride: N-Ethyl-
3-phenylpropan-1-amine Hydrochloride NH
x HCl (A) 50 mg
MM 0454.05 Imp. D (EP) as Hydrochloride: N-(3-
Cyclohexylpropyl)-N-ethyl-3-phenylpropan-
1-amine Hydrochloride
N
x HCl (A) 100 mg
MM 0454.06 Imp. E (EP) as Hydrochloride: 3-Phenyl-
N,N-bis(3-phenylpropyl)propan-1-amine
Hydrochloride
(A) 100 mg
Amantadine Hydrochloride
MM 0564.00 Amantadine Hydrochloride
(A) 500 mg
Ambroxol Hydrochloride
MM 0005.00 Ambroxol Hydrochloride
(A) 500 mg
MM 0005.01 Imp. A (EP): (2-Amino-3,5-dibromophenyl)methanol
(A) 100 mg
MM 0005.04 Imp. B (EP) as Hydrochloride: trans-4-(6,8-Dibromo-
1,4-dihydroquinazolin-3(2H)-yl)cyclohexanol Hydrochloride
(A) 100 mg
MM 0005.03 Imp. C (EP): trans-4-[[(E)-2-Amino-
3,5-dibromobenzyliden]amino]cyclohexanol
(A) 100 mg
MM 0005.05 Imp. D (EP) as Hydrochloride: cis-4-[(2-Amino-
3,5-dibromobenzyl)amino]cyclohexanol Hydrochloride
(A) 100 mg
MM 0005.02 Imp. E (EP): 2-Amino-3,5-dibromobenzaldehyde
(A) 100 mg
MM 0005.06 trans-4-Aminocyclohexanol Hydrochloride
(A) 100 mg
MM 0005.07 cis-4-Aminocyclohexanol Hydrochloride
(A) 100 mg
Amiloride Hydrochloride
MM 0560.00 Amiloride Hydrochloride Dihydrate
(A) 500 mg
Aminocaproic Acid
MM 0896.00 Aminocaproic Acid
(A) 500 mg
Pharmaceutical impurities
Edition 2010/2011 All your needs for pharmaceutical analysis - email pharma@lgcstandards.com 23
Code Product Price Unit
Amiodarone Hydrochloride
MM 0697.00 Amiodarone Hydrochloride O
(A) 250 mg
MM 0697.11 Imp. A (EP) as Oxalate: (2-Butylbenzofuran-
3-yl)[4-[2-(diethylamino)ethoxy]-
phenyl]methanone Oxalate
(A) 100 mg
MM 0697.03 Imp. B (EP) as Hydrochloride: (2-Butylbenzofuran-
3-yl)[4-[2-(ethylamino)ethoxy]-3,5-diiodophenyl]
methanone Hydrochloride (Desethylamiodarone
Hydrochloride)
(D) 100 mg
MM 0697.04 Imp. C (EP) as Hydrochloride:
(2-Butylbenzofuran-
3-yl)[4-[2-(diethylamino)ethoxy]-
3-iodophenyl]methanone Hydrochloride
(A) 100 mg
MM 0697.05 Imp. D (EP): (2-Butylbenzofuran-3-yl)(4-hydroxy-
3,5-diiodophenyl)methanone
(A) 100 mg
MM 0697.06 Imp. E (EP): (2-Butylbenzofuran-
3-yl)(4-hydroxyphenyl)methanone
(A) 100 mg
MM 0697.07 Imp. F (EP): (2-Butylbenzofuran-3-yl)(4-hydroxy-
3-iodophenyl)methanone
(A) 100 mg
MM 0697.09 Imp. H (EP) as Hydrochloride: 2-Chloro-N,N-diethylethanamine
Hydrochloride (2-Chlorotriethylamine Hydrochloride;
(2-Chloroethyl)diethylamine Hydrochloride)
(C) 100 mg
MM 0697.10 Amiodarone N-Oxide Hydrochloride O
(A) 100 mg
Amisulpride
MM 0051.01 Imp. A (EP): [(2RS)-1-Ethylpyrrolidin-2-yl]methanamine
(A) 100 mg
Amitraz
MM 1018.01 Imp. A (BP): 2,4-Dimethylaniline
(2,4-Xylidine)
(A) 100 mg
MM 1018.02 Imp. B (BP): Form-2',4'-xylidide
(A) 100 mg
Amitriptyline Hydrochloride
MM 0062.00 Amitriptyline Hydrochloride
(A) 500 mg
MM 0062.01 Imp. A (EP): 10,11-Dihydro-5H-dibenzo-
[a,d][7]annulen-5-one (Dibenzosuberone)
(B) 100 mg
Pharmaceutical impurities
24 All your needs for pharmaceutical analysis - email pharma@lgcstandards.com Edition 2010/2011
Code Product Price Unit
MM 0062.02 Imp. B (EP) as Hydrochloride: 3-(5H-Dibenzo[a,d][7]annulen-
5-ylidene)-N,N-dimethylpropan-1-amine Hydrochloride
(Cyclobenzaprine Hydrochloride)
(A) 100 mg
MM 0079.00 Imp. C (EP) as Hydrochloride: 3-(10,11-Dihydro-5Hdibenzo[
a,d][7]annulen-5-ylidene)-N-methylpropan-1-amine
Hydrochloride (Nortriptyline Hydrochloride)
(A) 500 mg
MM 0062.03 Imp. D (EP): 5-[3-(Dimethylamino)propyl]-10,11-dihydro-5Hdibenzo[
a,d][7]annulen-5
(A) 100 mg
MM 0062.05 Imp. F (EP): (5EZ,10RS)-5-[3-(Dimethylamino)
propylidene]-10,11-dihydro-5Hdibenzo[
a,d][7]annulen-10-ol
HO
N
(A) 100 mg
New MM 0062.14 Imp. G (EP): 10,11-Dihydro-5H-dibenzo[a,d][7]annulen-5-ol
(Dibenzosuberol) OH
(A) 100 mg
MM 0062.12 Amitriptyline N-Oxide Hydrochloride
N O x HCl
(B) 10 mg
MM 0062.13 10,11-Dihydro-5H-dibenzo[a,d]cycloheptene (Dibenzosuberane) (A) 100 mg
Amlodipine Besilate
MM 0383.00 Amlodipine Besilate
(D) 100 mg
MM 0383.06 Amlodipine HN
(A) 100 mg
MM 0383.01 Imp. A (EP): 3-Ethyl-5-Methyl (4RS)-4-(2-Chlorophenyl)-
2-[[2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)ethoxy]methyl]-
6-methyl-1,4-dihydropyridine-3,5-dicarboxylate
(D) 100 mg
MM 0383.02 Imp. B (EP): 3-Ethyl 5-Methyl (4RS)-
4-(2-Chlorophenyl)-6-methyl-
2-[[2-[[2-(methylcarbamoyl)benzoyl]amino]-
ethoxy]methyl]-1,4-dihydropyridine-3,5-dicarboxylate
(D) 100 mg
MM 0383.03 Ethyl Methyl (4RS)-2,6-Bis[(2-aminoethoxy)methyl]-
4-(2-chlorophenyl)-1,4-dihydropyridine-
3,5-dicarboxylate Dihydrochloride
(D) 100 mg
MM 0383.04 Imp. D (EP): 3-Ethyl-5-Methyl 2-[(2-Aminoethoxy)methyl]-
4-(2-chlorophenyl)-6-methylpyridine-3,5-dicarboxylate
(D) 100 mg
Pharmaceutical impurities
Edition 2010/2011 All your needs for pharmaceutical analysis - email pharma@lgcstandards.com 25
Code Product Price Unit
New MM 0383.10 Imp. E (EP): Diethyl (4RS)-2-[(2-Aminoethoxy)
methyl]-4-(2-chlorophenyl)-6-
methyl-1,4-dihydropyridine-3,5-dicarboxylate
(D) 100 mg
MM 0383.07 Imp. G (EP): Dimethyl 4-(2-Chlorophenyl)-
2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
(A) 100 mg
MM 0383.11 Imp. H (EP): 2-[[2-[[(4RS)-4-(2-Chlorophenyl)-
3-(ethoxycarbonyl)-5-(methoxycarbonyl)-6-
methyl-1,4-dihydropyridin-2-yl]methoxy]ethyl]-
carbamoyl]benzoic Acid
mg
MM 0383.05 Benzenesulfonic Acid
(B) 100 mg
Amlodipine Maleate
MM 0631.00 Amlodipine Maleate HN
(D) 100 mg
Amlodipine Mesilate
MM 0592.00 Amlodipine Mesilate HN
(D) 100 mg
Amodiaquine Dihydrochloride Dihydrate
MM 0617.00 Amodiaquine Dihydrochloride Dihydrate
(A) 500 mg
MM 0617.01 4-Acetamido-2-diethylaminomethylphenol
(A) 100 mg
MM 0617.02 7-Chloro-4-(4-hydroxyphenylamino)quinoline
(A) 100 mg
MM0617.03 4,7-Dichloroquinoline
(C) 100 mg
MM 0617.04 Monodesethylamodiaquine Dihydrochloride
x 2 HCl
(A) 100 mg
Amoxicillin Trihydrate
MM 0232.00 Amoxicillin Trihydrate
(A) 500 mg
Pharmaceutical impurities
26 All your needs for pharmaceutical analysis - email pharma@lgcstandards.com Edition 2010/2011
Code Product Price Unit
MM 0026.04 Imp. A (EP): (2S,5R,6R)-6-Amino-3,3-dimethyl-7-oxo-4-thia-
1-azabicyclo[3.2.0]-heptane-2-carboxylic Acid
(6-Aminopenicillanic Acid)
(B) 100 mg
MM 0232.03 Imp. C (EP): (4S)-2-[5-(4-Hydroxyphenyl)-
3,6-dioxopiperazin-2-yl]-5,5-dimethyl-thiazolidine-
4-carboxylic Acid (Amoxicillin Diketopiperazines)
(A) 100 mg
MM 0232.04 Imp. D (EP) as Sodium Salt:(4S)-2-[[[(2R)-2-Amino-
2-(4-hydroxyphenyl)acetyl]amino]-carboxymethyl]-
5,5-dimethylthiazolidine-4-carboxylic Acid Sodium Salt
(Penicilloic Acids of Amoxicillin Sodium Salt)
(A) 100 mg
MM 0232.05 Imp. E (EP): (2RS,4S)-2-[[[(2R)-2-Amino-
2-(4-hydroxyphenyl)acetyl]amino]methyl]-
5,5-dimethylthiazolidine-4-carboxylic Acid
(Penilloic Acids of Amoxicillin)
(A) 50 mg
MM 0232.06 Imp. F (EP): 3-(4-Hydroxyphenyl)pyrazin-2-ol
(A) 100 mg
MM 0232.08 Imp. H (EP): (2R)-2-[(2,2-Dimethylpropanoyl)amino]-2-
(4-hydroxyphenyl)acetic Acid
(A) 100 mg
MM 0232.09 Imp. I (EP): (2R)-2-Amino-2-(4-hydroxyphenyl)acetic Acid
(B) 100 mg
MM 0232.12 (2R)-2-Amino-2-(4-hydroxyphenyl)acetamide
(A) 100 mg
Ampicillin Sodium
MM 0253.00 Ampicillin Sodium
(A) 500 mg