PF-05089771 (tosylate)

PF-05089771 is a voltage-gated sodium channel 1.7 (Nav1.7) blocker (IC50s = 11, 16, 33, and 20 nM for 5N11S, 5A11L, 5A11S, and 5A11L Nav1.7 splice variants, respectively). It is selective for Nav1.7 over Nav1.1-1.6 and 1.8 channels (IC50s = 0.11-25 µM), L-type calcium, and KvLQT and hERG potassium channels (IC50s = >10 µM), as well as human and cynomolgus monkey TRPV1 receptors (IC50s = 10 and 20 µM, respectively). PF-05089771 is also 1,000-fold selective for half-inactivated over resting Nav1.7 channels, and mutation of the domain IV voltage-sensor domain (VSD4) reduces PF-05089771 potency by approximately 100-fold.Formal Name: 4-[2-(3-amino-1H-pyrazol-4-yl)-4-chlorophenoxy]-5-chloro-2-fluoro-N-4-thiazolyl-4-benzenesulfonamide, monomethylbenzenesulfonate. CAS Number: 1430806-04-4. Molecular Formula: C18H12Cl2FN5O3S2 . C7H8O3S. Formula Weight: 672.6. Purity: >98%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 33 mg/ml, DMSO: 33 mg/ml, DMSO:PBS(pH 7.2) (1:4): 0.20 mg/ml. lambdamax: 240 nm. SMILES: ClC1=C(OC2=CC=C(Cl)C=C2C3=CNN=C3N)C=C(F)C(S(NC4=CSC=N4)(=O)=O)=C1.CC5=CC=C(S(O)(=O)=O)C=C5. InChi Code: InChI=1S/C18H12Cl2FN5O3S2.C7H8O3S/c19-9-1-2-14(10(3-9)11-6-24-25-18(11)22)29-15-5-13(21)16(4-12(15)20)31(27,28)26-17-7-30-8-23-17,1-6-2-4-7(5-3-6)11(8,9)10/h1-8,26H,(H3,22,24,25),2-5H,1H3,(H,8,9,10). InChi Key: NVKBPDYKPNYMDR-UHFFFAOYSA-N.