Emil Oskar Nobel

Emil Oskar Nobel (/noʊˈbɛl/; Swedish: [nʊˈbɛl]; also Oscar; 1843 – 3 September 1864) was a member of the Nobel family, the youngest son of Immanuel Nobel, the younger, and of his wife Caroline Andrietta Ahlsell. He was brother of Robert Nobel, Ludvig Nobel and Alfred Nobel. Emil died on September 3, 1864, the victim of an explosion while experimenting with nitroglycerine in his father's factory in Heleneborg, . His brother Alfred later managed to stabilize dynamite with diatomaceous earth. Alfred was not in the factory at the time of Emil's death.

...
Wikipedia