N-Octyl-2-pyrrolidone (NOP), SOLVAGREEN® min. 99 %, for synthesis, Molar mass (M) 197,32 g/mol, Density (D) 0,92 g/cm³, Flash point (flp) 142 °C, Boiling point (bp) 292 to 305 °C, CAS No. [2687-94-7], UN-Nr. 3267, EG-Nr. 403-700-8, Empirical formula C12H23NO