piano chord
D♯7sus4
D♯1G♯4A♯5C♯♭7
A dominant seventh with the fourth standing in for the third.
Written the other way round it is E♭7sus4 — the same twelve keys on a piano, a different piece of notation.
What is true of it
D♯7sus4 is D♯, G♯, A♯ and C♯ — 1, 4, 5 and b7 counted from D♯.
On an instrument that cannot reach all 4, the 5 goes first, in that order.