Products L

Impurities and Working Standards

The following products are in stock and can be immediately dispatched when an order confirmation is received. Also, any non-listed Impurities could be provided after request.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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Lamotrigine

Impurity A

Chemical Name: 3-Amino-6-(2,3-dichlorophenyl)-1,2,4-triazin-5(4H)-one (5-Desamino 5-Oxo-2,5-dihydro Lamotrigine)
CAS No.: 252186-78-0
Cat. No.: BRI.LMT.A

Impurity E

Chemical Name: 2,3-Dichlorobenzoic Acid
CAS No.: 50-45-3
Cat. No.: BRI.LMT.E

Levodopa

Impurity B

Chemical Name: (2S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid (Tyrosine)
CAS No.: 60-18-4
Cat. No.: BRI.LVD.B

Impurity C

Chemical Name: (2RS)-2-Amino-3-(4-hydroxy-3-methoxyphenyl)propanoic acid (3-Methoxy-DL-tyrosine)
CAS No.: 4214-13-5
Cat. No.: BRI.LVD.C

Lidocaine

Impurity 1

Chemical Name: 2-Chloro-N-(2,6-dimethylphenyl)acetamide
CAS No.: 1131-01-7
Cat. No.: BRI.LDC.PLC.1

Impurity 2

Chemical Name: 2,6-Dimethylaniline
CAS No.: 87-62-7
Cat. No.: BRI.LDC.PLC.2

Impurity 3

Chemical Name: 2,2-Dichloro-N-(2,6-dimethylphenyl)acetamide
CAS No.: 39084-88-3
Cat. No.: BRI.LDC.PLC.3

Impurity 4

Chemical Name: 2-(Diethylamino)-N-(2,4-dimethylphenyl)acetamide
CAS No.: 17289-53-1
Cat. No.: BRI.LDC.PLC.4

Linagliptin

Impurity 1

Chemical Name: (R)-N-(1-(7-(But-2-ynyl)-3-methyl-1-((4-methyl quinazolin-2-yl) methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl) piperidin-3-yl)acetamide (Linagliptin Acetamide or Linagliptin N-Acetyl Impurity
CAS No.: 1803079-49-3
Cat. No.: BRI.LNG.1

Impurity 2

Chemical Name: N-[(3R)-1-[7-(2-Butyn-1-yl)-2,3,6,7-tetrahydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-2,6-dioxo-1H-purin-8-yl]-3-piperidinyl]-carbamic acid 1,1-dimethylethyl ester (Linagliptin N-Boc Impurity)
CAS No.: 668273-75-4
Cat. No.: BRI.LNG.2

Impurity 3

Chemical Name: 8-Bromo-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-purine-2,6-dione (Linagliptin Bromo Impurity)
CAS No.: 853029-57-9
Cat. No.: BRI.LNG.3

Impurity 4

Chemical Name: 8-[(3S)-3-Amino-1-piperidinyl]-7-(2-butyn-1-yl)-3, 7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl) methyl]- 1H-Purine-2, 6-dione (Linagliptin S-Isomer Impurity)
CAS No.: Ν/Α
Cat. No.: BRI.LNG.4

Linezolid

Impurity 1

Chemical Name: Methyl (3-Fluoro-4-morpholinophenyl)carbamate ((3-Fluoro-4-morpholin-4-ylphenyl)carbamic Acid Methyl Ester
CAS No.: 212325-40-1
Cat. No.: BRI.LNZ.1

Liraglutide

Impurity 1

Chemical Name: Trp(O)-Liraglutide (H-His-Ala-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala-Lys(γ-Glu-palmitoyl)-Glu-Phe-Ile-Ala-Trp(O)-Leu-Val-Arg-Gly-Arg-Gly-OH, Trp(O)25-Liraglutide)
CAS No.: N/A
Cat. No.: BRI.LRG.1

Impurity 2

Chemical Name: (D-His)-Liraglutide (D-His-Ala-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala-Lys(γ-Glu-palmitoyl)-Glu-Phe-Ile-Ala-Trp-Leu-Val-Arg-Gly-Arg-Gly-OH)
CAS No.: N/A
Cat. No.: BRI.LNG.2

Impurity 3

Chemical Name: Liraglutide Impurity D-2-[Asp]9 (H-His-Ala-Glu-Gly-Thr-Phe-Thr-Ser-β-Asp-Val-Ser-Ser-Tyr-Leu-Glu-Gly-Gln-Ala-Ala-Lys (Pal-γ-Glu)-Glu-Phe-Ile-Ala-Trp-Leu-Val-Arg-Gly-Arg-Gly-OH, β-Asp(9)-Liraglutide
CAS No.: N/A
Cat. No.: BRI.LNG.3

Linezolid

Impurity 1

Chemical Name: Methyl (3-Fluoro-4-morpholinophenyl)carbamate ((3-Fluoro-4-morpholin-4-ylphenyl)carbamic Acid Methyl Ester
CAS No.: 212325-40-1
Cat. No.: BRI.LNZ.1