5-Desmethyl-3-methyl Leflunomide

5-去甲基-3-甲基来氟米特

Also known as: 3-Methyl-N-[4-(trifluoromethyl)phenyl]-1,2-oxazole-4-carboxamide, 3-methyl-N-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxamide, Leflunomide EP Impurity E, Leflunomide EP Impurity E (Teriflunomide Impurity 1), Leflunomide Impurity 5 (Leflunomide EP Impurity E), Leflunomide Impurity E, N-[4-(Trifluoromethyl)phenyl]-3-methylisoxazole-4-carboxamide, Teriflunomide Impurity, Teriflunomide Isoxazole Impurity, UNII-1L493ZB2GU

5-Desmethyl-3-methyl Leflunomide (CAS 208401-20-1) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C12H9F3N2O2 and a molecular weight of 270.20700 g/mol. It is also known as 3-Methyl-N-[4-(trifluoromethyl)phenyl]-1,2-oxazole-4-carboxamide, 3-methyl-N-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxamide and Leflunomide EP Impurity E. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 208401-20-1
Jingsj CID: J-1356472-8
Molecular Formula: C₁₂H₉F₃N₂O₂
Chinese Name: 5-去甲基-3-甲基来氟米特
Molecular Weight: 270.20700 g/mol
Category: Organohalogen Compounds
Last updated: 8/21/2026

No offers for this compound yet.

Request a quote

Frequently Asked Questions

What is the CAS number of 5-Desmethyl-3-methyl Leflunomide?

The CAS number of 5-Desmethyl-3-methyl Leflunomide is 208401-20-1.

What are the molecular formula and molecular weight of 5-Desmethyl-3-methyl Leflunomide?

5-Desmethyl-3-methyl Leflunomide has molecular formula C12H9F3N2O2 and molecular weight 270.20700 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "5-Desmethyl-3-methyl Leflunomide (CAS 208401-20-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1356472-8 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.