F Quartal (So What), 4th inversion (C in the bass)
Also written as F quartal/C.
Notes, from the bass up
C (bass)FBbEbG
The same notes as F Quartal (So What) (C, F, Bb, Eb and G), rearranged so C is the lowest note. Use it to move between chords with smaller jumps across the keyboard.