The wrestling over the attacks continued, and turned to the chemical composition of the sarin.
The chemical agent in question, Hagel said, was likely sarin, a deadly nerve gas.
sarin gas, which was released in the Tokyo subway system in 1995, killing 12 and injuring thousands, is the most famous example.
But United Nations inspectors have only been able to confirm five, including a series of sarin gas attacks on Aug. 21.
From Assad's perspective, bombing Ghouta with sarin gas has been one of his smartest moves.
Kaszeta insisted that the chemical compound hexamine in the sarin residue was a tell-tale sign of Syrian government involvement.
Washington and Moscow developed cluster bombs capable of carrying chemical weapons like sarin or tear gas.
type of odorless nerve gas, 1945, from German, but the name is of unknown origin. Other phosphorous compounds known in Germany by the end of World War II were called Tabun, soman, Diglykol.