Since its independence in 1956, Sudan has been bedeviled by a succession of civil wars and political instability. The Darfur conflict should be seen as part of these larger, ongoing series of Sudanese crises, with one conflict spilling from one part of the country to another.
the general term is cofactor, but more specifically, if the cofactor is an organic molecule, it is called a coenzyme.
Cofactor (biochemistry) The succinate dehydrogenase complex showing several cofactors, including flavin, iron-sulfur centers, and heme. A cofactor is a non-protein chemical compound or metallic ion that is required for a protein's biological activity to happen. These proteins are commonly enzymes, and cofactors can be considered helper molecules that assist in biochemical transformations.