Here's what rhymes with thiosulfate.

Consider these alternatives

thiocyanate / late sulfite / sulfide arsenite / might orthophosphate / phosphate bisulfite / sulfide benzaldehyde / side dithionite / might formate / late selenate / late molybdate / state pyruvate / pyruvat hypochlorite / right sulphate / sulfate sulfate / sulphate iodide / side ascorbate / state maleate / faleate manganate / late carboxylase / days selenite / might benzoate / state cyanate / late disproportionation / information dichromate / cognate