Sodium reaction Chiral synthesis Synthesis in ultralow temperature, anhydrous and oxygan free Acetylene hydrocarbon reaction Synthesis of organic fluoride Cyanogenation Hydrogenation Fixed-bed dehydrogenation, hydrogenation & ammonia oxidation   N,N,N',N'-Tetramethylethylenediamine Molecular Structure: Specification: Testing items Value Appearance colorless clear liquid Purity % Moisture% Index of refraction nD20 1.4169-1.4189