Product Name: DIMETHYLDICHLOROSILANE M2 DMDCS ( Synonyms: DICHLORODIMETHYLSILANE ) Molecular Formula: ( CH3) 2SiCl2 Molecular Weight: 129.06 Melting Point: -86 Flashing Point: -9 Boiling Point: 70.5 Vapour Pressure: -16KPa ( 25 ) Related Density: 1.07g/ cm3 ( 25 ) Specification: Testing Item Standard Assay ( % ) 99.5 Min Methyltrichlorosilane ( % ) 0.1 Max. Refractive Index ( n 25D) 1.4028 Appearance Colorless Transparent Liquid HS Code: 29310000 CAS No.: 75-78-5 EINECS: UN No.: 1162 Hazardous Grade: 3 ( 8) Packing Type: II Usage: Used in special organic synthesis, used for manufacturing DMC, D4, and silicone rubber and silicone resins, etc. Packages: 200 kgs iron drum. Storage: Kept in cool and dry place, prevent from water and fire. As a hazardous substance.