Synthesis chemical lab is one of the best and leading supplier of chemical wholesale and retail traders. We are leading supplier of chemicals speciality chemicals. Synthesis chemical lab are the supplier of Benedict's reagent - synthesis chemical lab. Benedict's reagent, also known as Benedict's solution, is a chemical reagent which is made up of a complex mixture of sodium citrate, sodium carbonate, and the pentahydrate of copper(II) sulfate. Benedict's reagent is a chemical reagent used to detect the presence of reducing sugars and other reducing substances. Composition: A complex mixture of sodium carbonate, sodium citrate, and copper(II) sulfate pentahydrate. Color: Bright blue Reaction: When exposed to reducing sugars, the reagent changes color from clear blue to brick red. Synthesis chemical lab is a one stop solution for your all kind of chemical needs. synthesis chemical lab.