<P>PROBLEM TO BE SOLVED: To provide a phenol compound that can perform the thermal head deletion in a wide range of environment from low temperature and low humidity to high temperature and high humidity and can suitably be used as a color developer for a reversible thermal recording medium. <P>SOLUTION: The phenol compound is represented by general formula (1) (wherein n is an integer of 8 to 22 and n is an integer larger than 1/3). <P>COPYRIGHT: (C)2006,JPO&NCIPI
