MSG606 TFA

MSG606 TFA is a potent human MC1 receptor antagonist (IC50=17 nM). MSG606 TFA also partial agonist at human MC3 and MC5 receptors (EC50 values are 59 and 1300 nM, respectively). MSG606 TFA exhibits binding affinity for A375 melanoma cells in vitro. MSG606 TFA reverses the induced hyperalgesia in female mice, with no effect in male mice.