e/Radical clock

Information
has gloss	eng: In chemistry, a radical clock is a chemical compound that assists in the indirect methodology to determine the kinetics of a free-radical reaction. This involves a unimolecular radical reaction with a known rate constant competing against a bimolecular radical reaction with an unknown rate constant to form unrearranged and rearranged products. With the ratio of the products, reactant concentrations and known rate constant for the clock reaction, the unknown rate constant can be determined.
lexicalization	eng: radical clock
instance of	(noun) an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule; "in the body free radicals are high-energy particles that ricochet wildly and damage cells" free radical, radical

Media
media:img	Radical Cyclization.svg
media:img	Ring Opening.svg