Dominant ninth flat five chord

A dominant ninth flat five chord is composed using a root/1^st, major 3^rd, diminished 5^th, minor 7^th and major 9^th (or R/1-3-♭5-♭7-9) intervals played simultaneously. Generally written as C^9(♭5) or Cdom^9(♭5), it is good practice to simply use an uppercase C followed by a super scripted ^9(♭5) to represent it in writing (ie: C^9(♭5)).

Dominant ninth flat five chord profile

Intervals	root/1^st, major 3^rd, diminished 5^th, minor 7^th, major 9^th or R/1-3-♭5-♭7-9
Stability	Dissonant, unresolved
Grouping class	Pentad
Common names (examples in C)	C^9(♭5), Cdom^9(♭5)