Sulfur and bromine can form a compound called sulfur bromide, but there are multiple possible formulas depending on the ratio of sulfur to bromine atoms:

* Sulfur monobromide (SBr): This is a relatively unstable compound.

* Sulfur dibromide (SBr₂): This is also a known compound, but it is more common in its gaseous state.

* Sulfur tetrabromide (SBr₄): This compound is not well-characterized, and it's possible that it doesn't exist as a stable molecule.

It's important to note that the specific chemical formula of the sulfur bromide compound will depend on the context in which it is encountered.