WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 528212

CAS#: 251442-94-1

Description: E-6087 is a cyclooxygenase 2 (COX-2) inhibitor potentially for the treatment of osteoarthritis and pain. E-6087 significantly enhanced the response to radiation, reducing mean volume to 32% of tumors treated with radiation only. The combination treatment neither increased apoptosis of tumor cells or stromal cells nor affected tumor microvascular density. In vitro, E-6087 and its active metabolite did not affect clonogenic survival of GL261 cells or human umbilical vein endothelial cell after radiation. In vivo, however, there was a nonsignificant increase in Angiopoietin (Ang)-1 and Tie-2 mRNA levels and a decrease of Ang-2 mRNA levels after combination treatment.

Price and Availability




E-6087 is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 528212
Name: E-6087
CAS#: 251442-94-1
Chemical Formula: C16H12F5N3O2S
Exact Mass: 405.057
Molecular Weight: 405.343
Elemental Analysis: C, 47.41; H, 2.98; F, 23.43; N, 10.37; O, 7.89; S, 7.91

Synonym: E-6087; E 6087; E6087

IUPAC/Chemical Name: 4-(5-(2,4-difluorophenyl)-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide


InChi Code: InChI=1S/C16H12F5N3O2S/c17-9-1-6-12(13(18)7-9)14-8-15(16(19,20)21)23-24(14)10-2-4-11(5-3-10)27(22,25)26/h1-7,14H,8H2,(H2,22,25,26)

SMILES Code: O=S(C1=CC=C(N2N=C(C(F)(F)F)CC2C3=CC=C(F)C=C3F)C=C1)(N)=O

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>2 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

Harmonized System Code:


1: Salgado L, Encina G, Farran R, Puig S, Martínez L. Enantioselective HPLC determination of E-6087, a new COX-2 inhibitor, in human plasma: Validation and pharmacokinetic application. Chirality. 2004 May 15;16(5):302-8. PubMed PMID: 15069660.

2: Reinoso RF, Farrán R, Moragon T, García-Soret A, Martínez L. Development and validation of two chromatographic methods for the quantification of E-6087 and one of its metabolites, E-6132, in rat plasma. J Pharm Biomed Anal. 2001 Mar;24(5-6):897-911. PubMed PMID: 11248483.

3: Reinoso RF, Farrán R, Moragón T, García-Soret A, Martínez L. Pharmacokinetics of E-6087, a new anti-inflammatory agent, in rats and dogs. Biopharm Drug Dispos. 2001 Sep;22(6):231-42. PubMed PMID: 11754039.

4: Wagemakers M, van der Wal GE, Cuberes R, Alvarez I, Andrés EM, Buxens J, Vela JM, Moorlag H, Mooij JJ, Molema G. COX-2 Inhibition Combined with Radiation Reduces Orthotopic Glioma Outgrowth by Targeting the Tumor Vasculature. Transl Oncol. 2009 Mar;2(1):1-7. PubMed PMID: 19252746; PubMed Central PMCID: PMC2647697.

5: Pérez-Maseda C, Calvet C, Cuberes R, Frigola J. Determination of enantiomeric purity of a novel COX-2 anti-inflammatory drug by capillary electrophoresis using single and dual cyclodextrin systems. Electrophoresis. 2003 May;24(9):1416-21. PubMed PMID: 12731028.

6: Iñiguez MA, Punzón C, Cacheiro-Llaguno C, Díaz-Muñoz MD, Duque J, Cuberes R, Alvarez I, Andrés EM, Buxens J, Buschmann H, Vela JM, Fresno M. Cyclooxygenase-independent inhibitory effects on T cell activation of novel 4,5-dihydro-3 trifluoromethyl pyrazole cyclooxygenase-2 inhibitors. Int Immunopharmacol. 2010 Oct;10(10):1295-304. doi: 10.1016/j.intimp.2010.07.013. PubMed PMID: 20709632.

7: Calvet C, Cuberes R, Pérez-Maseda C, Frigola J. Enantioseparation of novel COX-2 anti-inflammatory drugs by capillary electrophoresis using single and dual cyclodextrin systems. Electrophoresis. 2002 Jun;23(11):1702-8. PubMed PMID: 12179991.