Eb 7sus2, 1st inversion (E# in the bass)
Also written as Eb7sus2/E#.
Notes, from the bass up
E# (bass)A#C#D#
The same notes as Eb 7sus2 (E#, A#, C# and D#), rearranged so E# is the lowest note. Use it to move between chords with smaller jumps across the keyboard.