Vinyl-D4 Cas no. : 2554-06-5 Molecular formular : [-si(ch3)(ch=ch2)o-]4 Molecular weight : 344.66 Specification : appearance : colorless clear liquid Refractive index : >1.4340 Density(p20, g/cm3) : 0.997 Melting point : -44oc Boiling point : 111~112oc/10 Flash point : 210of Vinyl d4 content : min. 75% Water content : max. 50ppm