Putrid Vial of Fluid - What's it For?

[BigBadWolf]

A Putrid Vial of Fluid dropped in the Ruins of Lxanvom (aka the Crypt of Decay) off one of the various Puslings near the entrance. Lucy lists this as a combinable item but I've found no recipe that uses this.

Anyone have any clue as to a use for this?
This is NOT the same as Foul Smelling Liquid.

[Cyrnan]

If I'm not mistaken, it looks like one of the poison/potion vials (dark blue with a purple spirally design).

I have run across these on PoK vendors, purchased them, and did an intensive quest for a use.

Unfortunately, I failed to find anything combineable with it, or to find a recipe.

Eventually, I sold them back to a PoK vendor.

I was hoping, though... :?