Chemical compound is a members-only quest item. It is used in Digsite Quest to blow up bricks blocking the path below digsite. It is used with bricks and is lighted with tinderbox. It is made by combining nitroglycerin, ammonium nitrate, ground charcoal and arcenia root. (requires Herblore level 10) People with Dharok's may drop this as Dharok's hits harder on low health.
Warning! Dropping this item results in a lot of damage (25 HP)!