453-11-2

Colorless or slightly yellowish transparent liquid with a slightly sour odor. Its bp is 120-130°C, and its relative density is 1.25-1.27 (23°C). Compound A accounts for 70% of the total, with a bp of 127-128°C, a relative density of 1.244 (20°C), and a refractive index of 1.3800 (20°C); Compound B accounts for 30% of the total, with a bp of 146-148°C, a relative density of 1.300 (20°C), and a refractive index of 1.4360 (20°C). It is soluble in water, ethanol, ether, and other organic solvents. It is chemically stable in acidic solutions but decomposes in alkaline solutions. It readily evaporates and loses its toxicity at high temperatures.

It is a pharmaceutical intermediate.