N-Methyl-2-pyrrolidone, PEPTIPURE®, min. 99.8 %, for peptide synthesis, Molar mass (M) 99,13 g/mol, Density (D) 1,03 g/cm³, Flash point (flp) 91 °C, Boiling point (bp) 204,3 °C, CAS No. [872-50-4], EG-Nr. 212-828-1, Empirical formula C5H9NO