1-Methyl-2-pyrrolidinone CAS:872-50-4

Name:  1-Methyl-2-pyrrolidinone

CAS:  872-50-4

Synonyms:  1-METHYL-2-PYRROLIDINONE
                    1-METHYL-2-PYRROLIDONE
                    M-PYROL(R)
                    N-METHYL-2-KETOPYRROLIDINE
                    N-METHYL-2-PYROLLIDONE
                    N-METHYL-2-PYRROLIDINONE
                    N-METHYL-2-PYRROLIDONE
                    N-METHYLPYROLIDONE
                    N-METHYLPYRROLID-2-ONE
                    N-METHYLPYRROLIDINONE
                    N-METHYLPYRROLIDNONE
                    N-METHYLPYRROLIDONE
                    NMP
                    NMP-EL
                    NMP-T
                    0131
                    1-methyl-2-pyrrolidinon
                    1-Methyl-5-pyrrolidinone
                    1-Methylazacyclopentan-2-one
                    1-Methylazacyclopentane-2-one

Molecular Formula:  C5H9NO

Molecular Weight:  99.13

Appearance:  colourless or light yellow liquid with an amine odour

Melting point:  −24 °C(lit.)

mp:  −24 °C(lit.)

Boiling point:  202 °C(lit.)

bp:  202 °C(lit.)

density:  1.028 g/mL at 25 °C(lit.)

vapor density:  3.4 (vs air)

vapor pressure:  0.29 mm Hg ( 20 °C)

refractive index:  n20/D 1.479

Fp:  187 °F

storage temp.:  2-8°C

solubility:  ethanol: miscible0.1ML/mL, clear, colorless (10%, v/v)

form:  Liquid

pka:  -0.41±0.20(Predicted)