CORRECTION: This story was updated on April 21, 2016, to clarify that the method described was not the first radical-based route to chiral quaternary carbon centers. The method is the first route ...
The U.S. National Committee for the International Union for Quaternary Research (USNC/INQUA) represents the interests of the U.S. Quaternary community in INQUA, advances Quaternary research both in ...
Pharmaceutical chemists have a trick when they’re designing a drug and want to make it easier for the body to take up without metabolic side effects: they might add a quaternary center—a carbon atom ...
In a recent study posted to the bioRxiv* preprint server, researchers evaluated the antimicrobial efficiency of two commercially available disinfectants containing quaternary ammonium compounds ...
A new study by Dr. Margherita Mussi, published in Quaternary International, highlights how naturally occurring basalt spheres may have been used by hominin species as a type of tool for more than 1 ...
The active ingredient in many drugs is what’s known as a small molecule: bigger than water, much smaller than an antibody and mainly made of carbon. It’s tough, however, to make these molecules if ...
Making molecules with quaternary carbon bonds—four carbons attached to a central C—is tricky but necessary for medicinal chemists. Quaternary C bonds have a discrete shape, Princeton University ...
The Quattrow QF4400HT quaternary four-piston diaphragm pump from PSG, a Dover company, is suitable for a variety of biopharmaceutical applications. The Quattrow QF4400HT quaternary four-piston ...
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