In 2016 , Iranian chemists synthesised five Novichok agents for analysis .
In 2016 , Iranian chemists produced detailed mass spectral data which was added to the Organisation for the Prohibition of Chemical Weapons Central Analytical Database .
In 2016 , Iranian chemists synthesised five Novichok agents for analysis and produced detailed mass spectral data which was added to the Organisation for the Prohibition of Chemical Weapons Central Analytical Database .