A prop 'Quinitricetyline' liquid chemical Container.
In the special edition of the movie the Colony Inmates, in an attempt to kill the Alien, line the corridors with 'Quinitricetyline'. Such chemical containers are seen in the metal cages when they collect the chemical from it's storage room.
The plastic container features the name of the chemical in red on opposite sides and also on one side features a prop 'Weyland Yutani Corp' label.
