that'd be helpful actually in a soil amended with enough cations as is.I don't see why not. The differences I see is that black strap molasses is a lot stronger with less sugar.
Per 15ml of black strap. Potassium 450mg, Sugar 9 grams, calcium 20%, magnesium 25%. Salt 30mg.
That syrup says 30ml with a 1/4 of what black strap contains.