It is a kind of colorless or yellowish oily liquid. The boiling point of it is 210 celsius degree ( in 0.67 kPa), 175 ( in 0.27 kPa), 167 ( in 0.130 kPa), and its relative density is  0.990 (20/4 celsius degree). The refractive indexes is 1.4470 and the flash point 193 celsius degree. It is soluble in most organic solvents, and slightly soluble in ethylene glycol and other kinds of alcohol, but insoluble in water. It has a special odor.