Monocrotophos is the common name for dimethyl(E)-1-methyl-2-(methylcarbomoyl) vinyl phosphate. It is a colourless, hygroscopic crystal with a melting point of 54°C-55°C, a boiling point of 125°C/0.0005 mmHg, vapour pressure of 0.29 mPa (20°C), density of 1.33 g ml-1 (20°C) and solubility in water at 20°C is 1 kg kg-1. 

Main Research: Yeoh Chee Beng