Complex sentence: Mannitol or 1,2,3,4,5,6-hexanehexol (C 6 H 8 (OH) 6) is a vasodilator which is used mainly to reduce pressure in the cranium, and to treat patients with oliguric renal failure.
Split into simpler sentences: Mannitol or 1,2,3,4,5,6-hexanehexol (C 6 H 8 (OH) 6) is a vasodilator. Mannitol is used mainly to reduce pressure in the cranium, and to treat patients with oliguric renal failure.