Cas no.36768-62-4 Cas no.36768-62-4Appearance: Pale yellow liquid Gray pm : 0.1% max Flashing point : 72 degree Refractive index : nl.4705 Density : 0.912 Color (APHA): 25max Boiling point : 188-189 degree Melting point : 16-18 degree 4-Amino-2,2,6,6-Tetramethyl Piperidine