CG NO. CG-58 Product Name Trimethoxysilane CAS 2487-90-3 Chemical Name Trimethoxysilane Molecular formula HSi (O CH3)3 Characters and Applications Item Top-Grade First-Grade Appearance(APHA) 10 max 30 max GC Purity(%) 99.0 min 98.0 min Density(25oC) 0.855-0.865 Refractive index (25oC) 1.360-1.370 Packing 180kgs in new iron drum.