Catalog No.S2631 Synonyms: KDS-4103
Molecular Weight(MW): 338.4
URB597 is a potent, orally bioavailable FAAH inhibitor with IC50 of 4.6 nM, with no activity on other cannabinoid-related targets. Phase 1.
Purity & Quality Control
Choose Selective FAAH Inhibitors
|Description||URB597 is a potent, orally bioavailable FAAH inhibitor with IC50 of 4.6 nM, with no activity on other cannabinoid-related targets. Phase 1.|
URB597 binds in the hydrophobic pocket and catalytic core of FAAH that connects the active site residues to the membrane surface of FAAH.  URB597 inhibits FAAH activity in human liver microsomes with IC50 of 3 nM.  URB597 reduces the expression of the LPS-induced enzymes cyclo-oxygenase 2 (COX-2) and inducible nitric oxide synthase (iNOS; NOS2) in primary rat microglial cell, with a concomitant reduction in the release of the inflammatory mediators prostaglandin E2 (PGE2) and (NO) nitric oxide.  URB597 evokes Ca2+ entry in HEK293-F Cells transiently expressing human or rat TRPA1 gene. URB597 also activates Ca2+ entry in rat DRG neurons natively expressed TRPA1 channels. 
|In vivo||URB597 inhibits [3H]anandamide hydrolysis in rat brain membranes with a parallel increase in brain anandamide, OEA, and PEA content by inhibition of FAAH. URB597 enhances the hypothermia effect induced by ethanolamide by inhibiting FAAH.  When delivered intraperitonealy (0.3 mg/kg) URB597 reduces allodynia and hyperalgesia through cannabinoid CB1 and CB2 receptor-mediated analgesia in rats with inflammatory pain.  URB597 reduces the reduction in body weight gain and sucrose intake induced by the chronic mild stress in rats through inhibition of brain FAAH activity.  URB597 could reverse most depressive-like symptoms induced by adolescent THC exposure in femal rats. |
-  Mor M, et al. J Med Chem, 2004, 47(21), 4998-5008.
-  Piomelli D, et al. CNS Drug Rev, 2006, 12(1), 21-38.
-  Tham CS, et al. FEBS Lett, 2007, 581(16), 2899-2904.
-  Niforatos W, et al. Mol Pharmacol, 2007, 71(5), 1209-1216.
-  Fegley D, et al. J Pharmacol Exp Ther, 2005, 313(1), 352-358.
-  Jayamanne A, et al. Br J Pharmacol, 2006, 147(3), 281-288.
-  Bortolato M, et al. Biol Psychiatry, 2007, 62(10), 1103-1110.
-  Realini N, et al. Neuropharmacology, 2011, 60(2-3), 235-243.
|In vitro||DMSO||68 mg/mL (200.94 mM)|
|Ethanol||5 mg/mL (14.77 mM)|
|Water||slightly soluble or insoluble|
|In vivo||Add solvents individually and in order:
30% propylene glycol, 5% Tween 80, 65% D5W
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Clinical Trial Information
|NCT Number||Recruitment||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT00916201||Not yet recruiting||Schizophrenia||Central Institute of Mental Health, Mannheim|Max-Planck Institute for Metabolism Research||December 2015||Phase 1|
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