C# Minor 9b5, 2nd inversion (G in the bass)
Also written as C#m9b5/G.
Notes, from the bass up
G (bass)BD#C#E
The same notes as C# Minor 9b5 (G, B, D#, C# and E), rearranged so G is the lowest note. Use it to move between chords with smaller jumps across the keyboard.