Esters are usually synthesized from an alcohol and an acid, most frequently, a carboxylic acid. In some cases, an epoxide is used instead of the alcohol; or an acid halide or anhydride replaces the ...

A seed crystal can be dropped into a saturated solution of sodium acetate. The solution will suddenly crystallize and turn to solid. Alternately, the solution may be slowly poured out onto a seed ...

told CNA she believes “this is the first study that shows the possibility of using [ulipristal acetate] for abortion” but that “just looking at the chemical structure, it has a structure ...

The Vatican and the U.S. Conference of Catholic Bishops have warned for years that emergency contraceptives could induce abortions in early pregnancies, which pharmaceutical companies have ...