Their GF is R-O-O-R. peroxides a named much the same way as ethers and ketones. There must be two radical, which are named smallest and largest with the word “peroxide” at the end of the name. If the radical are the same, the prefix “di” is used indicate two of the same radical. For example, if the radical “methyl” and “ethyl” are attached to the peroxide, the compound is named methyl ethyl peroxide (CHOCH). Shown in the Figures 7.6 and 7.7 are the names, molecular formulas, and structures of two common organic peroxides; methyl ethyl ketone (MEK) peroxide and ditert butyl peroxide. Note that benzoyl peroxide does not follow the trivial naming system of peroxide, however, “peroxide” in the name provides the family information that will help in determining the hazard, which is explosive.