NOWHERE CAN I FIND INFORMATION THAT THIS AGENT CAUSES SLEEPING.
As for it inducing sleep i guess the reason the media said so is because they saw imobile people, hence the conventional thought is 'sleep gas.' A similar example is when someone buys in a public store 'Pepper Spray' and automatically thinks he is buying 'Mace' when in reality there is a big difference between Pepper Spray and Mace. However not as big as the difference between sleeping gas and a nerve agent.
One will knock you to sleep, the other could very well put you to sleep. Subtle but profound.
They had a lot of better choices, surely, and I cannot imagine they would use this. If they had it seems like a lot more people would be dead. Many many more.
See following account, particularly regarding tests of Novochok-33 in low doses, and various interesting effects, including reported IMPROVED marksmanship ability with small arms, in some instances. But I suspect the *sleeping* it causes is of the permanent variety, as per the effects noted in the photos of the dead terrorists without visible bullet wounds, who had nevertheless evacuated their bowels and bladders [per stained carpets beneath them] upon exposure to the *sleep gas.*
We'll see; look for numbers of the gassed hostages who become casualties soar into the 150+ range over the next week. But I bet the bargaining of supplies of 2-PAM or Atropine for the captured terrorists makes for an interesting bargaining chip during their interrogations, particularly as they watch others so exposed expire.
-archy-/-