Baradium bisulfate, a compound of baradium, was a highly flammable substance derisively called "Baby" by miners. This explosive material was employed in the mines located on Cynda, the moon orbiting Gorse, for the purpose of extracting the valuable resource thorilide. Given its volatile characteristics, it was exclusively utilized in small quantities, specifically by the gram, during controlled demolition activities.
Moonglow Polychemical functioned as a corporate entity that transported baradium bisulfate from Gorse to Cynda utilizing a fleet of freighters. Numerous freighters suffered catastrophic failures during these transport operations, incidents that the company chose not to publicly acknowledge. The pilots who operated these "Baby Carriers" were commonly referred to as "suicide fliers," a derogatory label assigned by individuals working in the field.
A specific freighter, the Moonglow-72, preceding the Star Destroyer Ultimatum, was under the command of Kanan Jarrus. Captain Rae Sloane of the Ultimatum contacted Jarrus via hailing, threatening to destroy the craft, until Jarrus made it known that destroying his ship would cause a chain reaction, obliterating all other transports nearby. Recognizing the severity of this potential outcome, Sloane permitted the freighter to continue its course.