boiling point of 1-butanol vs 2,4-dimethyl-2,4-pentanediol

1-butanol 2, 4-dimethyl-2, 4-pentanediol | boiling point

1-butanol | 117 °C (degrees Celsius) 2, 4-dimethyl-2, 4-pentanediol | 99 °C (degrees Celsius) (measured at 1866 Pa)