Description Application This product is Informer compound X1 of the Aryl Halide Chemistry Informer Library developed by chemists at Merck & Co., Inc., Kenilworth, NJ, U.S., which contains 18 drug-like molecules representative of those encountered in complex synthesis. By screening a new reaction against the Informer Library, chemists can directly compare and analyse a reaction′s successes and shortcomings among different methods and various research teams. It may also be used to facilitate deeper method development for performance or utility. Caution Not fully tested Other Notes Chemistry informer libraries: a chemoinformatics enabled approach to evaluate and advance synthetic methods, Chem. Sci., 2016, 7, 2604-2613.