Synonyms: Tetraethyl orthosilicate; Tetraethoxysilane Molecular Formula: C8H20O4Si Molecular Weight: 208.33 Linear Structural Formula: (C2H5O)4Si MDL Number: MFCD00009062 Purity: >=99% (GC) Melting Point: -85.5 C Density: 0.94 g/cm3 at 20 C