But it has become harder to find new chemicals this way.
It is one of the antioxidant chemicals found in food.
Almost nothing is known about the effects on human health of most chemicals found in hazardous waste sites, the study said.
This, they say, should make it possible to find similar chemicals based on more abundant, less expensive material.
The scientists then stimulated the cells with chemicals found in the brain.
Mason decides to burn it down using chemicals found in the room.
After that, he could rip ores from the ground and find chemicals.
Recent research on peanuts has found antioxidants and other chemicals that may provide health benefits.
But there's some nasty side effects when it's mixed with the other chemicals found in the powder.
There are significant concerns regarding harmful chemicals found in certain toys.