pf-3845 pf-3845 pf-3845 is a selective inhibitor of fatty acid amide hydrolase. it results in increased levels of anandamide and results in cannabinoid receptor-based effects. it has anti-inflammatory action in mice colitis models. antidiarrheal and antinociceptive effects were also seen in mouse models of pain. pf-3845clinical dataatc codenonelegal statuslegal status us: investigational new drug identifiers iupac name n-3-pyridinyl-4-(oxy)phenyl]methyl)-1-piperidinecarboxamide cas number1196109-52-0pubchem cid25154867chemspider26232165uniiq3pw846tyncomptox dashboard (epa)dtxsid40648905 chemical and physical dataformulac24h23f3n4o2molar mass456.469 g·mol−13d model (jsmol)interactive image smiles o=c(nc1=cn=cc=c1)n(cc2)ccc2cc3=cc=cc(oc4=nc=c(c(f)(f)f)c=c4)=c3 inchi inchi=1s/c24h23f3n4o2/c25-24(26,27)19-6-7-22(29-15-19)33-21-5-1-3-18(14-21)13-17-8-11-31(12-9-17)23(32)30-20-4-2-10-28-16-20/h1-7,10,14-17h,8-9,11-13h2,(h,30,32)key:nbojhryuglrasx-uhfffaoysa-n a 2017 study published in the journal of psychiatry and neuroscience found that pf-3845 exerts rapid and long-lasting anti-anxiety effects in mice exposed acutely to stress or chronically to the stress hormone corticosterone.