Table 1. The physical characteristics of hinokitiol, carvacrol, thymol, and menthol.

	Hinokitiol	Carvacrol	Thymol	Menthol
Molecular weight	164.2	150.22	150.22	156.27
Formula	C10H12O2	C10H14O	C10H14O	C10H20O
Density, 25°C (g/cm3)	1.127	0,977	0,965	0,89
Vapor pressure, 25°C (mm/Hg)	8.9×10−5	2.96×10−2	3.76×10−2	3.20×10−2
Boiling point, 1 atm (°C)	303.4	236 ~ 237	231~ 232	214 ~ 216
Melting point, 1 atm (°C)	48~53	3~4	49~51	34~36