Catalog No. Size PriceQuantity
M12538-2 2mg solid $120
M12538-10 10mg solid $360


Licofelone (ML-3000) is a dual COX/5-lipoxygenase (5-LOX) inhibitor (IC50=0.21/0.18 μM, respectively) for the treatment of osteoarthritis. Licofelone exerts anti-inflammatory and anti-proliferative effects. Licofelone induces apoptosis, and decreases the production of proinflammatory leukotrienes and prostaglandins.

Product information

CAS Number: 156897-06-2

Molecular Weight: 379.88

Formula: C23H22ClNO2



Chemical Name: 2-[6-(4-chlorophenyl)-2, 2-dimethyl-7-phenyl-2, 3-dihydro-1H-pyrrolizin-5-yl]acetic acid

Smiles: CC1(C)CC2=C(C(C3C=CC(Cl)=CC=3)=C(CC(O)=O)N2C1)C1C=CC=CC=1


InChi: InChI=1S/C23H22ClNO2/c1-23(2)13-19-22(15-6-4-3-5-7-15)21(16-8-10-17(24)11-9-16)18(12-20(26)27)25(19)14-23/h3-11H,12-14H2,1-2H3,(H,26,27)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: DMSO : 25 mg/mL (65.81 mM; Need ultrasonic)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥360 days if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

The IC50s of human thrombocyte COX and human 5-LO are 0.16 µM and 0.23 µM, respectively.


  1. Tavolari S, et al. Licofelone, a dual COX/5-LOX inhibitor, induces apoptosis in HCA-7 colon cancer cells through the mitochondrial pathway independently from its ability to affect the arachidonic acid cascade. Carcinogenesis. 2008 Feb;29(2):371-80.
  2. Alvaro-Gracia JM, et al. Licofelone--clinical update on a novel LOX/COX inhibitor for the treatment of osteoarthritis. Rheumatology (Oxford). 2004 Feb;43 Suppl 1:i21-5.
  3. Laufer SA, et al. (6,7-Diaryldihydropyrrolizin-5-yl)acetic acids, a novel class of potent dual inhibitors of both cyclooxygenase and 5-lipoxygenase. J Med Chem. 1994 Jun 10;37(12):1894-7.

Products are for research use only. Not for human use.

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