abstract |
It is an object of the present invention to provide an aprotic polar solvent mainly useful as a solvent for an electrochemical device, and having a comparatively low melting point and excellent thermal stability. n The present invention is a sulfone compound represented by the following formula (1),n nwherein, in the formula (1), R 1 and R 2 each represent a C3-C6 alkyl group, and R 1 and R 2 are different. |