Product Name: N-Ethyl-2-pyrrolidone Synonyms: 1-ethyl-2-pyrrolidinon;1-ethyl-pyrrolidin-2-one;2-Pyrrolidinone, 1-ethyl-;Agsol Ex 2;ethyl-2-pyrrolidone;N-Ethyl-2-pyrrolidinone;N-Ethylpyrrolidinone;N-Ethylpyrrolidone CAS: 2687-91-4 MF: C6H11NO MW: 113.16 EINECS: 220-250-6 Melting point 87.5-88.5 �°C Boiling point 97 �°C/20 mmHg (lit.) density 0.992 g/mL at 25 �°C (lit.) vapor pressure 18Pa at 20�ºC refractive index n20/D 1.465(lit.) Fp 169 �°F storage temp. Sealed in dry,Room Temperature form Liquid pka -0.41±0.20(Predicted) color Clear PH 8-9 (100g/l, H2O, 20C)