Strontium ranelate

Formula : C12-H10-N2-O8-S.2Sr
CAS : 135459-87-9 

An uncoupling agent containing strontium prevents bone loss by depressing bone resorption & maintaining bone formation in estrogen-deficient rats.

Strontium ranelate octahydrate

Formula :
CAS : 674773-15-0 

An uncoupling agent containing strontium prevents bone loss by depressing bone resorption & maintaining bone formation in estrogen-deficient rats.

Strontium Sr-90

Formula : Sr
CAS : 10098-97-2 

Unstable isotopes of strontium that decay or disintegrate spontaneously emitting radiation. Sr 80-83, 85, and 89-95 are radioactive strontium isotopes.