Quinor VII was the seventh planet in the Quinor system. This planet was located in Cardassian space, and was the site of a base of the Cardassian Liberation Front. The base was one of eighteen destroyed by Dominion and Breen forces in late 2375. (DS9: "The Dogs of War")
According to the Star Trek: Star Charts, on page 46, the Quinor system was located in the Alpha Quadrant. The system's primary was a G-type star.