Yellow oil in some perfumes and dyes. It reacts with the blood and corrupts it, and also paralyzes the central nervous system. Death within about 2 hours by respiratory failure. Cyanosis - greyness at extremities. Blood dark and thick.
Stomach has a red congestion and bleeding under the surface.
Organs smell of bitter almonds, like with cyanide. Oxalic Acid Found naturally in rhubarb leaves and also used in some bleaches. Kills by removing calcium from the blood. Symptoms are stomach pains, muscle tremors, rapid breathing, convulsions, coma and death. Can kill with a very small dose.