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Here, Dave Elder reflects on the three main instances of nitrosamine contamination as impurities in drug products.

Dave Elder looks at the guidelines drug manufacturers should follow to reduce nitrosamine impurities, following several recent withdrawals.

 E-Mail IMAGE: A team of chemists with the University of Chicago announced a new technique that allows scientists to easily cut nitrogen atoms from molecules--which can make the process of finding new... view more  Credit: University of Chicago Molecules are the building blocks for our modern world, from phones to cars to Doritos. But coming up with new ones is still an incredibly costly and time-consuming process. A group of University of Chicago chemists wants to find a better way. "If you look at a diagram of a molecule, it seems like you should be able to just snap them together...