FK-888 is a selective, high affinity tachykinin NK1 receptor antagonist (Ki = 0.69 nM) that displays 320-fold selectivity for human over rat NK1 receptors. FK-888 inhibits substance P-induced contraction of isolated guinea pig trachea (IC50 = 32 nM) and inhibits substance P-induced airway constriction in vivo.
MedKoo Cat#: 531783
Name: FK-888
CAS#: 138449-07-7
Chemical Formula: C36H36N4O4
Exact Mass: 588.2737
Molecular Weight: 588.71
Elemental Analysis: C, 73.45; H, 6.16; N, 9.52; O, 10.87
The following data is based on the product molecular weight 588.71 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|---|---|---|
| 1 mM | 1.15 mL | 5.76 mL | 11.51 mL |
| 5 mM | 0.23 mL | 1.15 mL | 2.3 mL |
| 10 mM | 0.12 mL | 0.58 mL | 1.15 mL |
| 50 mM | 0.02 mL | 0.12 mL | 0.23 mL |
