I am working on a solo for a song and am trying to confirm the name of a chord.
the formula is

1(Db) 5(Ab) 7(C) 9(Eb) 12(Ab)

1st string 4th fret
2nd string 4th fret
3rd string 5th fret
4th string 6th fret
5th string 4th fret

The bass player is playing a Db

I think it is a DbMaj7add9

Can someone please verify this for me??
Thanks