Real World article
(written from a Production point of view)

According to the script of the Star Trek: Deep Space Nine episode "Chrysalis", Corgal II was the location of the Corgal Research Center.

Before Sarina Douglas left Deep Space 9 aboard the USS Nash, a boarding call was made for all passengers bound for Corgal II. [1] In the aired version, the system just stated "final boarding call" without any reference to the destination.