Eb Major 13th, 2nd inversion (A# in the bass)
Notes, from the bass up
A# (bass)DE#G#B#D#G
The same notes as Eb Major 13th (A#, D, E#, G#, B#, D# and G), rearranged so A# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.