A seventh sharp nine chord is created by adding a sharpened 9th degree to any dominant 7th chord. For example, a C7#9 chord contains the notes C, E, G, Bb and D# (1, 3, 5, b7 and #9). Here are some common open seventh sharp 9 chord shapes.
C7#9
Db7#9
D7#9
Eb7#9
G7#9
B7#9
E7#9
F7#9
B#7#9
Ab7#9
A7#9
Bb7#9