
Leflunomide
CAS No. 75706-12-6
Leflunomide( Arava | HW 486 | SU 101 )
Catalog No. M15879 CAS No. 75706-12-6
Leflunomide is a pyrimidine synthesis inhibitor belonging to the DMARD (disease-modifying antirheumatic drug) class of drugs.
Purity : >98% (HPLC)






Size | Price / USD | Stock | Quantity |
50MG | 35 | In Stock |
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100MG | 47 | In Stock |
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200MG | 65 | In Stock |
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500MG | 146 | In Stock |
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1G | Get Quote | In Stock |
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Biological Information
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Product NameLeflunomide
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NoteResearch use only, not for human use.
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Brief DescriptionLeflunomide is a pyrimidine synthesis inhibitor belonging to the DMARD (disease-modifying antirheumatic drug) class of drugs.
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DescriptionLeflunomide is a pyrimidine synthesis inhibitor belonging to the DMARD (disease-modifying antirheumatic drug) class of drugs, which are chemically and pharmacologically very heterogeneous. Leflunomide was approved by FDA and in many other countries (e.g., Canada, Europe) in 1999. (In Vitro):Leflunomide is actually a prodrug that has been shown to inhibit proliferation of mononuclear and T-cells. Leflunomide is an inhibitor of several protein tyrosine kinases, with IC50 values between 30 mM and 100 mM in vitro cellular and enzymatic assays.Leflunomide is capable of inhibiting anti-CD3- and interleukin-2 (IL-2)-stimulated T cell proliferation. Leflunomide is able to inhibit p59fyn and p56lck activity in in vitro tyrosine kinase assays. Leflunomide also inhibits Ca2+ mobilization in Jurkat cells stimulated by anti-CD3 antibody but not in those stimulated by ionomycin. Leflunomide also inhibits distal events of anti-CD3 monoclonal antibody stimulation, namely, IL-2 production and IL-2 receptor expression on human T lymphocytes. Leflunomide also inhibits tyrosine phosphorylation in CTLL-4 cells stimulated by IL-2.Leflunomide is an immunomodulatory drug that may exert its effects by inhibiting the mitochondrial enzyme dihydroorotate dehydrogenase (DHODH), which plays a key role in the de novo synthesis of the pyrimidine ribonucleotide uridine monophosphate (rUMP). Leflunomide prevents the expansion of activated and autoimmune lymphocytes by interfering with the cell cycle progression due to inadequate production of rUMP and utilizing mechanisms involving p53.
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In VitroLeflunomide is actually a prodrug that has been shown to inhibit proliferation of mononuclear and T-cells. Leflunomide is an inhibitor of several protein tyrosine kinases, with IC50 values between 30 mM and 100 mM in vitro cellular and enzymatic assays. Leflunomide is capable of inhibiting anti-CD3- and interleukin-2 (IL-2)-stimulated T cell proliferation. Leflunomide is able to inhibit p59fyn and p56lck activity in in vitro tyrosine kinase assays. Leflunomide also inhibits Ca2+ mobilization in Jurkat cells stimulated by anti-CD3 antibody but not in those stimulated by ionomycin. Leflunomide also inhibits distal events of anti-CD3 monoclonal antibody stimulation, namely, IL-2 production and IL-2 receptor expression on human T lymphocytes. Leflunomide also inhibits tyrosine phosphorylation in CTLL-4 cells stimulated by IL-2. Leflunomide is an immunomodulatory drug that may exert its effects by inhibiting the mitochondrial enzyme dihydroorotate dehydrogenase (DHODH), which plays a key role in the de novo synthesis of the pyrimidine ribonucleotide uridine monophosphate (rUMP). Leflunomide prevents the expansion of activated and autoimmune lymphocytes by interfering with the cell cycle progression due to inadequate production of rUMP and utilizing mechanisms involving p53.
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In Vivo——
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SynonymsArava | HW 486 | SU 101
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PathwayEndocrinology/Hormones
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TargetAhR
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RecptorAhR| DHODH| Protein-tyrosine kinase 2
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Research AreaInflammation/Immunology
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Indication——
Chemical Information
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CAS Number75706-12-6
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Formula Weight270.21
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Molecular FormulaC12H9F3N2O2
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Purity>98% (HPLC)
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SolubilityEthanol: 54 mg/mL (199.84 mM); DMSO: 54 mg/mL (199.84 mM)
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SMILESO=C(C1=C(C)ON=C1)NC2=CC=C(C(F)(F)F)C=C2
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Chemical Name5-methyl-N-[4-(trifluoromethyl)phenyl]-1,2-oxazole-4-carboxamide
Shipping & Storage Information
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Storage(-20℃)
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ShippingWith Ice Pack
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Stability≥ 2 years
Reference
1.Goldenberg MM. Clin Ther. 1999 Nov;21(11):1837-52; discussion 182
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