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These are found in nature and have also been produced synthetically.
He now makes them synthetically at his institute, just outside Houston.
"The problem is how you do that synthetically," she said.
"Synthetically grown, but it works better than the natural ones."
They are synthetically made compounds and have not been discovered in nature.
It has been produced synthetically through a variety of different routes.
It can also be synthetically produced from oil of turpentine.
Every synthetically produced drug is toxic, taken in large enough quantities.
It can be produced synthetically, sometimes known as synthetic mustard oil.
At least four manufacturers expect to market the synthetically produced hormone.
We produce it synthetically, and of course you are familiar with that word."
However, this reaction results in low yields and is not synthetically useful.
It can also be produced synthetically and used as an additive in food products.
"Or possibly making it synthetically, though I doubt we'll ever do that.
It was the first antibiotic to be manufactured synthetically on a large scale.
Melatonin used as medicine is usually made synthetically in a laboratory.
It can be synthetically created or derived from natural resins.
An element of nature never seen before and assumed not to exist is represented synthetically.
It is one of the first pigments made synthetically.
The finding made it possible to produce the molecule of the vitamin synthetically.
In 1869, it became the first natural pigment to be duplicated synthetically.
This is a rare mineral to encounter in its natural state, but it has been made synthetically for over 40 years.
Advances to produce heparin synthetically have been made in 2003 and 2008.
The fragment is then reproduced synthetically and injected back into the animal.
Nearly all technetium is produced synthetically and only minute amounts are found in nature.