Leflunomide Impurities

Leflunomide Related Products

SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Leflunomide, pharmacopeial and non-pharmacopeial Leflunomide impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Leflunomide impurities reference standards are useful in pharmaceutical research. They are useful in product development, ANDA and DMF filing, quality control (QC), method validation, and stability studies. It is also useful in the identification of unknown impurities and the assessment of genotoxic potential.

Leflunomide-related products are thoroughly characterized. Leflunomide products are supplied with detailed COA & analytical data meeting regulatory compliance. We can also provide EP/USP traceable standards based on your requirements. The supplied products are re-tested at regular intervals.

Pharmaceutical Reference Standards

3-Trifluoro Isomer

SZ CAT No:	: SZ-L032015
CAS No	: 63927-52-6
Mol.F.	: C12H9F3N2O2
Mol.Wt.	: 270.2
Inv. Status	: In Stock

Leflunomide

SZ CAT No:	: SZ-L032001
CAS No	: 75706-12-6
Mol.F.	: C12H9F3N2O2
Mol.Wt.	: 270.2
Inv. Status	: In Stock

Leflunomide EP Impurity A

SZ CAT No:	: SZ-L032002
CAS No	: 455-14-1
Mol.F.	: C7H6F3N
Mol.Wt.	: 161.1
Inv. Status	: In Stock

Leflunomide EP Impurity B

SZ CAT No:	: SZ-L032003
CAS No	: 163451-81-8
Mol.F.	: C12H9F3N2O2
Mol.Wt.	: 270.2
Inv. Status	: In Stock

Leflunomide EP Impurity C

SZ CAT No:	: SZ-L032004
CAS No	: 61643-23-0
Mol.F.	: C12H9F3N2O2
Mol.Wt.	: 270.2
Inv. Status	: In Stock

Leflunomide EP Impurity D

SZ CAT No:	: SZ-L032005
CAS No	: 42831-50-5
Mol.F.	: C5H5NO3
Mol.Wt.	: 127.1
Inv. Status	: In Stock

Leflunomide EP Impurity E

SZ CAT No:	: SZ-L032006
CAS No	: 208401-20-1
Mol.F.	: C12H9F3N2O2
Mol.Wt.	: 270.2
Inv. Status	: In Stock

Leflunomide EP Impurity F

SZ CAT No:	: SZ-L032007
CAS No	: 1403564-06-6
Mol.F.	: C12H9F3N2O2
Mol.Wt.	: 270.2
Inv. Status	: In Stock

Leflunomide EP Impurity G

SZ CAT No:	: SZ-L032008
CAS No	: 724429-16-7
Mol.F.	: C12H12N2O2
Mol.Wt.	: 216.2
Inv. Status	: In Stock

Leflunomide EP Impurity H

SZ CAT No:	: SZ-L032009
CAS No	: 24522-30-3
Mol.F.	: C10H7F3N2O
Mol.Wt.	: 228.2
Inv. Status	: In Stock

Leflunomide Impurity 1

SZ CAT No:	: SZ-L032014
CAS No	: 419534-37-5
Mol.F.	: C10H7F3N2O
Mol.Wt.	: 228.2
Inv. Status	: In Stock

Leflunomide Impurity 2

SZ CAT No:	: SZ-L032016
CAS No	: 17153-20-7
Mol.F.	: C5H5NO3
Mol.Wt.	: 127.1
Inv. Status	: Out of Stock

3-Methylisoxazole-4-Carboxylic Acid Ethyl Ester

SZ CAT No:	: SZ-L032011
CAS No	: 20328-15-8
Mol.F.	: C7H9NO3
Mol.Wt.	: 155.2
Inv. Status	: Custom Synthesis

Leflunomide Impurity 3

SZ CAT No:	: SZ-L032017
CAS No	: 2772495-33-5
Mol.F.	: C19H14F3N3O3
Mol.Wt.	: 389.3
Inv. Status	: Custom Synthesis

Leflunomide Impurity 4

SZ CAT No:	: SZ-L032013
CAS No	: 19788-35-3
Mol.F.	: C6H7NO3
Mol.Wt.	: 141.1
Inv. Status	: Custom Synthesis

Leflunomide Metabolite Ethyl Analog

SZ CAT No:	: SZ-L032012
CAS No	: 2734292-21-6
Mol.F.	: C13H11F3N2O2
Mol.Wt.	: 284.2
Inv. Status	: Custom Synthesis

Teriflunomide-E Isomer

SZ CAT No:	: SZ-L032010
CAS No	: 108605-62-5
Mol.F.	: C12H9F3N2O2
Mol.Wt.	: 270.2
Inv. Status	: Custom Synthesis

Stable Isotopes And Metabolites

5-Methylisoxazole-3-Carboxylic-d4 Acid

SZ CAT No:	: SZ-L032D03
CAS No	: 1267623-84-6
Mol.F.	: C5HD4NO3
Mol.Wt.	: 131.1
Inv. Status	: Custom Synthesis

Leflunomide D4

SZ CAT No:	: SZ-L032D01
CAS No	: 1189987-23-2
Mol.F.	: C12H5D4F3N2O2
Mol.Wt.	: 274.3
Inv. Status	: Custom Synthesis

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