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Russia has not admitted what was in the gas, and has only acknowledged that it contained fentanyl-related compounds. But in 2012, a group of British scientists analyzed clothing from two...
The Russian media reported the drug was Kolokol-1, either mefentanyl or α-methylfentanil dissolved in a halothane base. It was reported that efforts to treat victims were complicated because the Russian government refused to inform doctors what type of gas had been used.
The crisis was resolved when Russian security services released sleeping gas into the building, and subsequently stormed it, killing all 40 hostage takers. 132 hostages died, largely due to the effects of the gas.
Oct 29, 2002 · American officials said yesterday that they suspected the Russian security police who raided a Moscow theater early Saturday might have used an aerosol version of a powerful, fast-acting opiate...
Oct 30, 2002 · Wed 30 Oct 2002 12.03 EST. The gas used by Russian special forces who stormed a Moscow theatre held by dozens of gunmen was based on the opiate fentanyl, officials confirmed this afternoon....
Oct 31, 2002 · MOSCOW, Russia (CNN) -- Four days after Russian forces used anesthetic gas to end a hostage standoff by Chechen rebels, Russia's top health official identified the main component of the...
Nov 8, 2002 · As this issue of Science went to press, experts were dubious about the official Russian explanation, which is that the gas was a derivative of fentanyl, an opiate. And evidence was emerging that at least one other compound might have been in the deadly concoction.
