PF-4840154 is a potent, selective agonist of the rat and human TrpA1 channel with EC50s of 97 and 23 nM, respectively.
References:
[1]. Ryckmans T, et al. Design and pharmacological evaluation of PF-4840154, a non-electrophilic reference agonist of the TrpA1 channel. Bioorg Med Chem Lett. 2011 Aug 15;21(16):4857-4859.
















