Cyanogen silicate Cyanogen silicate was a chemical compound utilized in medicine by doctors and healers of both the Galactic Republic and the Old Sith Empire . The Sith species ' Massassi warrior caste used the compound as a powerful cauterizing agent , and the Human Seelah Korsin framed Ravilan Wroth and his fellow Sith for the deaths of a hundred thousand native Keshiri on the planet Kesh whom she had poisoned with cyanogen silicate . Over a thousand years later , the xenopathologist Archiban Kimble used cyanogen silicate as part of his cure for a flesh - eating disease . Characteristics . A chemical compound , cyanogen silicate was used as a cauterizing agent in its solid form to heal the wounds of the Massassi warrior caste of the Sith species , as their tough hides proved resistant to treatment by other agents . However , the compound became incredibly deadly when exposed to moisture , killing members of the Human , Keshiri , and Sith species within minutes after exposure , regardless of whether it was ingested or simply touched . Moisture also broke down the compound as it intensified its effects , which meant that a single particle per billion could kill hundreds of people if it was inserted into a settlement ' s water supply . History . Cyanogen silicate was used by the Sith Empire as a cauterizing agent as early as the Great Hyperspace War with the Galactic Republic in 5000 BBY , and the Sith starship " Omen " carried a supply in its sick bay before crashing on the planet Kesh that year . One of the deck plates in the wreckage became stained with cyanogen silicate , and the Keshiri Gorem came into contact with the contaminated plate while he searched the crushed sections of the ship . Even though he washed his hands , Gorem died minutes afterward — he only survived long enough to exit the wreckage of the " Omen " before he collapsed . The Human Seelah Korsin had a supply of the compound on the " Omen " , as did the ship ' s Sith pureblood quartermaster , Ravilan Wroth , and , in 4985 BBY , Wroth used the compound to poison the aqueducts of the native Keshiri ' s city of Tetsubal . Wroth hoped to use the massacre of Tetsubal ' s inhabitants to convince the other survivors of the " Omen " crash that they should separate themselves from the Keshiri population and concentrate on how they would escape the planet . However , Korsin deduced Wroth ' s hand in the events at Tetsubal , and she ordered her personal aide , Tilden Kaah , to use Korsin ' s own supply of cyanogen silicate to poison several other local water supplies and thereby frame Wroth and his fellow Sith survivors for the massacres . Korsin ' s plan worked , causing the deaths of a hundred thousand Keshiri , and it resulted in the purge of all pureblood Sith from Kesh . Around 3642 BBY , over a thousand years later , cyanogen silicate was a known compound in the Galactic Republic , and the xenopathologist Archiban Kimble — better known as Doc — acquired supplies of cyanogen silicate , ardanium , and accellerite in his work to cure a rare flesh - eating disease that afflicted the Hutt Suudaa Nem ' ro . He brought the chemicals aboard the ship of his ally , the Jedi Knight known as the Hero of Tython , and completed the mixture there . Behind the scenes . Cyanogen silicate first appeared in John Jackson Miller ' s 2010 eBook " " , in which it is a major plot point in the contention between Seelah Korsin and Ravilan Wroth . It received another mention in " " , a video game released by BioWare and LucasArts in 2011 , during the conversation " Looking for a Cure " with Doc .