leflunomide
Drug ingredientThis chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
Where It Comes From
25 FDA-registered drug labelers
A-S Medication Solutions
Alembic Pharmaceuticals Inc.
Alembic Pharmaceuticals Limited
Apotex Corp.
Aurobindo Pharma Limited
AvKARE
AvPAK
Bryant Ranch Prepack
Burel Pharmaceuticals, LLC
Chartwell RX, LLC
Cipla Ltd.
DARMERICA, LLC
Emcure Pharmaceuticals Limited
Formosa Laboratories, Inc.
Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.
KVK-Tech, Inc.
Lupin Pharmaceuticals, Inc.
Maprimed S.A.
NuCare Pharmaceuticals, Inc.
OPELLA HEALTHCARE INTERNATIONAL SAS
Professional Compounding Centers of America dba PCCA
RAKSHIT DRUGS PRIVATE LIMITED
sanofi-aventis U.S. LLC
Zydus Lifesciences Limited
Zydus Pharmaceuticals (USA) Inc.
Why It Matters
Sectors
Health
Downstream Uses
Appears in 2 drug and cosmetic product listings (FDA).
- •Arava
- •Leflunomide
FDA Shortage Status
Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."
No FDA shortage records
Vendor Pricing
$8.60/gCombi-Blocks, Inc.
CountryUnited States
Pack$860.00 / 100 g
Purity98%
Vendors32 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
31 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Aaron Chemicals LLC | Hong Kong | $9.69 | 100 g | 98% |
| BLD Pharmatech Ltd. | China | $9.92 | 100 g | 98% |
| Angene Chemical | China → Hong Kong | $10.36 | 100 g | 98% |
| BLD Pharmatech Co., Limited | United States | $12.40 | 25 g | 98% |
| BLD Pharmatech GmbH | Germany | $12.40 | 25 g | 98% |
| Ambeed, Inc. | United States | $12.40 | 25 g | 98% |
| A2B Chem LLC | United States | $13.32 | 25 g | 98% |
| AA BLOCKS | United States | $14.08 | 25 g | 98% |
| ChemDiv, Inc. | United States | $25.00 | 25 g | 90% |
| AK Scientific, Inc. | United States | $39.52 | 25 g | 98% |
| Angene International Limited | United States | $62.04 | 25 g | 98% |
| AstaTech (2 weeks) | United States | $62.80 | 10 g | 95% |
| Sigma-Aldrich (Rush Stock) | Germany | $170.09 | 1 g | — |
| Sigma-Aldrich | Germany | $170.09 | 1 g | — |
| Fulfilled by Molport | Latvia | $200.00 | 50 mg | 98% |
| Molnova | China | $292.00 | 500 mg | 99% |
| TargetMol Chemicals | China → United States | $324.00 | 500 mg | 99.99% |
| TargetMol Chemicals EU | Austria | $360.00 | 200 mg | 99.99% |
| MedChemExpress MCE | Sweden | $496.10 | 500 mg | 99.82% |
| AK Scientific Specialized | United States | $700.00 | 100 mg | 99% |
| MedKoo Biosciences, Inc | United States | $750.00 | 1 g | 98% |
| Axon Medchem | Netherlands | $768.00 | 250 mg | 99% |
| CliniSciences GmbH | Switzerland | $1186.80 | 50 mg | 99% |
| Cayman Europe | Estonia | $1249.50 | 500 mg | 98% |
| Specs | Netherlands | $1694.00 | 20 mg | 90% |
| Princeton BioMolecular Research (SC) | United States | $2900.00 | 100 mg | 90% |
| Vitas M Chemical Limited | Hong Kong | $3170.00 | 100 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
| Life Chemicals Inc. | Ukraine → Canada | $4650.00 | 100 mg | 90% |
| Key Organics Ltd. | United Kingdom | $6900.00 | 10 mg | 97% |
| TimTec, LLC | United States | $58000.00 | 5 mg | 90% |
Chemical Identity
CAS75706-12-6
PubChem CID3899
DTXSIDDTXSID9023201
FormulaC12H9F3N2O2
Mol. Weight270.21 g/mol
SMILESCC1=C(C=NO1)C(=O)NC2=CC=C(C=C2)C(F)(F)F
Data Sources
38992026-04-07
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/leflunomide/cids/JSON
Archive: data/sources/pubchem_name/leflunomide.json
CAS 75706-12-62026-04-25
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json
bulk match2026-04-07
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json