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Clear colourless to light yellow liquid, mp:-46℃,bp:170℃，density :1.20-1.218, Fp:149°F, vapor pressure:1.7 mm Hg ( 20 °C), Water Solubility:27 g/L (20 ℃), Slightly soluble in water, Soluble in ether and alcohol.

Mainly used in medicine and pesticide intermediates